U-Blox SARA-U2 operation manual

Abstract

Technical data sheet describing the SARA-U2 series HSPA cellular modules.

These modules are a complete and cost-efficient 3.75G solution offering up to five-band high-speed HSPA and up to quad-band GSM/EGPRS voice and/or data transmission technology in a compact form factor.

www.u-blox.com

UBX-13005287 - R19

SARA-U2 series

HSPA modules with 2G fallback

Data Sheet

SARA-U2 series - Data Sheet

Document Information

Title

SARA-U2 series

Subtitle

HSPA modules with 2G fallback

Document type

Data Sheet

Document number

UBX-13005287

Revision and date

R19

26-Feb-2018

Disclosure restriction

Product Status

Corresponding content status

Functional Sample

Draft

For functional testing. Revised and supplementary data will be published later.

In Development / Prototype

Objective Specification

Target values. Revised and supplementary data will be published later.

Engineering Sample

Advance Information

Data based on early testing. Revised and supplementary data will be published later.

Initial Production

Early Prod. Information

Data from product verification. Revised and supplementary data may be published later.

Mass Production / End of Life

Production Information

Final product specification.

Name

Type number

Modem version

Application version

PCN reference

Product status

SARA-U201

SARA-U201-03B-00

23.60

A01.01

UBX-16018086

Initial Production

SARA-U201-63B-00

23.62

A01.01

UBX-17053345

End of Life

SARA-U201-63B-01

23.62

A01.02

UBX-18005738

Initial Production

SARA-U201-04B-00

23.60

A01.06

UBX-17058162

Initial Production

SARA-U201 ATEX

SARA-U201-03X-00

23.60

A01.01

UBX-16030157

Initial Production

SARA-U201-04X-00

23.60

A01.06

UBX-17058162

Initial Production

SARA-U260

SARA-U260-00S-01

23.20

A01.01

UBX-15013844

End of Life

SARA-U260-00S-02

23.20

A01.02

UBX-17061316

Mass Production

SARA-U260-03S-00

23.41

A01.01

UBX-15020745

End of Life

SARA-U260-03S-01

23.41

A01.02

UBX-17061316

Mass Production

SARA-U270

SARA-U270-00S-01

23.20

A01.01

UBX-16006754

End of Life

SARA-U270-00S-02

23.20

A01.02

UBX-17061316

Mass Production

SARA-U270-03S-00

23.41

A01.01

UBX-15020745

End of Life

SARA-U270-03S-01

23.41

A01.02

UBX-17061316

Mass Production

SARA-U270-73S-00

23.41

A01.02

UBX-16028821

End of Life

SARA-U270-73S-01

23.41

A01.03

UBX-17061316

Mass Production

SARA-U270-53S-00

23.41

A01.03

UBX-16008757

End of Life

SARA-U270-53S-01

23.41

A01.04

UBX-17011151

End of Life

SARA-U270-53S-02

23.41

A01.05

UBX-17061316

Mass Production

SARA-U270 ATEX

SARA-U270-00X-00

23.20

A01.00

UBX-14015739

End of Life

SARA-U270-00X-01

23.20

A01.02

UBX-17061316

Mass Production

SARA-U280

SARA-U280-00S-00

23.28

A01.00

UBX-15011634

End of Life

SARA-U280-00S-01

23.28

A01.01

UBX-17061316

Mass Production

SARA-U280-03S-00

23.41

A01.01

UBX-15020745

End of Life

SARA-U280-03S-01

23.41

A01.02

UBX-17061316

Mass Production

This document applies to the following products:

u-blox reserves all rights to this document and the information contained herein. Products, names, logos and designs described herein may in whole or in part be subject to intellectual property rights. Reproduction, use, modification or disclosure to third parties of this document or any part thereof without the express permission of u-blox is strictly prohibited. The information contained herein is provided “as is” and u-blox assumes no liability for the use of the information. No warranty, either express or implied, is given, including but not limited, with respect to the accuracy, correctness, reliability and fitness for a particular purpose of the information. This document may be revised by u-blox at any time. For most recent documents, please visit www.u-blox.com. Copyright © 2018, u-blox AG

u-blox is a registered trademark of u-blox Holding AG in the EU and other countries. Microsoft and Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries. All other registered trademarks or trademarks mentioned in this document are property of their respective owners.

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SARA-U2 series - Data Sheet

Contents .............................................................................................................................. 3

1 Functional description .................................................................................................. 5

1.1 Overview .............................................................................................................................................. 5

1.2 Product features ................................................................................................................................... 5

1.3 Block diagram ....................................................................................................................................... 6

1.4 Product description ............................................................................................................................... 7

1.5 AT command support ........................................................................................................................... 8

1.6 Supported features ............................................................................................................................... 8

2 Interfaces .................................................................................................................... 11

2.1 Power management ........................................................................................................................... 11

2.1.1 Module supply (VCC) .................................................................................................................. 11

2.1.2 RTC supply (V_BCKP) ................................................................................................................... 11

2.1.3 Generic digital interfaces supply (V_INT) ...................................................................................... 11

2.2 Antenna ............................................................................................................................................. 11

2.2.1 Antenna RF interface (ANT) ......................................................................................................... 11

2.2.2 Antenna detection (ANT_DET) ..................................................................................................... 11

2.3 System functions ................................................................................................................................ 11

2.3.1 Module power-on ....................................................................................................................... 11

2.3.2 Module power-off ....................................................................................................................... 12

2.3.3 Module reset ............................................................................................................................... 12

2.4 SIM ..................................................................................................................................................... 12

2.4.1 (U)SIM interface .......................................................................................................................... 12

2.4.2 SIM card detection (SIM_DET) ...................................................................................................... 12

2.5 Serial interfaces .................................................................................................................................. 13

2.5.1 Asynchronous serial interface (UART) .......................................................................................... 13

2.5.2 Auxiliary asynchronous serial interface (AUX UART) ..................................................................... 15

2.5.3 Universal Serial Bus (USB) ............................................................................................................ 16

2.5.4 DDC (I2C) bus interface ................................................................................................................ 17

2.6 Audio ................................................................................................................................................. 17

2.7 GPIO ................................................................................................................................................... 18

3 Pin definition .............................................................................................................. 19

3.1 Pin assignment ................................................................................................................................... 19

4 Electrical specifications .............................................................................................. 23

4.1 Absolute maximum rating .................................................................................................................. 23

4.1.1 Maximum ESD ............................................................................................................................. 23

4.2 Operating conditions .......................................................................................................................... 24

4.2.1 Operating temperature range ...................................................................................................... 24

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SARA-U2 series - Data Sheet

4.2.2 Supply/Power pins ....................................................................................................................... 25

4.2.3 Current consumption .................................................................................................................. 26

4.2.4 RF characteristics ......................................................................................................................... 28

4.2.5 ANT_DET pin ............................................................................................................................... 29

4.2.6 PWR_ON pin ............................................................................................................................... 29

4.2.7 RESET_N pin ................................................................................................................................ 29

4.2.8 (U)SIM pins .................................................................................................................................. 30

4.2.9 Generic Digital Interfaces pins ..................................................................................................... 31

4.2.10 USB pins ...................................................................................................................................... 41

4.2.11 DDC (I2C) pins ............................................................................................................................. 42

5 Mechanical specifications .......................................................................................... 43

6 Reliability tests and approvals .................................................................................. 44

6.1 Reliability tests .................................................................................................................................... 44

6.2 Approvals ........................................................................................................................................... 44

6.2.1 SARA-U2 series ........................................................................................................................... 44

6.2.2 SARA-U201 ATEX and SARA-U270 ATEX .................................................................................... 45

7 Product handling & soldering .................................................................................... 47

7.1 Packaging ........................................................................................................................................... 47

7.1.1 Reels ........................................................................................................................................... 47

7.1.2 Tapes .......................................................................................................................................... 48

7.2 Moisture Sensitivity Levels ................................................................................................................... 49

7.3 Reflow soldering ................................................................................................................................. 49

7.4 ESD precautions.................................................................................................................................. 49

8 Default settings .......................................................................................................... 50

9 Labeling and ordering information ........................................................................... 51

9.1 Product labeling.................................................................................................................................. 51

9.2 Explanation of codes .......................................................................................................................... 52

9.3 Ordering information .......................................................................................................................... 53

Appendix .......................................................................................................................... 54

A Glossary ...................................................................................................................... 54

Related documents .......................................................................................................... 55

Revision history ................................................................................................................ 56

Contact .............................................................................................................................. 57

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SARA-U2 series - Data Sheet

Module

UMTS

Bands

Interfaces

Audio

Features

Grade

HSUPA [Mbit/s]

HSDPA [Mbit/s]

3G bands [MHz]

2G bands [MHz]

UART

USB 2.0

DDC (I

GPIO

Analog Audio

Digital Audio

Network indication

Antenna supervisor

Jamming detection

Embedded TCP / UDP

Embedded HTTP, FTP

Embedded SSL / TLS

GNSS via Modem

AssistNow Software

CellLocate

FW update via serial

FOTA

eCall / ERA-GLONASS

ODIS

Dual stack IPv4/IPv6

Standard

Professional

Automotive

SARA-U201

5.76

7.2

800/850/900

1900/2100

850/900

1800/1900

21 1 1 9 1 • • • • • • • • • • •1 • • •

SARA-U201 ATEX

5.76

7.2

800/850/900

1900/2100

850/900

1800/1900

21 1 1 9 1 • • • • • • • • • • •1 • • •

SARA-U260

5.76

7.2

850/1900

1 1 1 9 1 • • • • • • • • • • •

SARA-U270

5.76

7.2

900/2100

900/18002

1 1 1 9 1 • • • • • • • • • • • •

SARA-U270 ATEX

5.76

7.2

900/2100

900/1800

1 1 1 9 1 • • • • • • • • • • • •

SARA-U280

5.76

7.2

850/1900

1 1 1 9 1 • • • • • • • • • • •

1 Functional description

1.1 Overview

The SARA-U2 series modules are a 3.75G UMTS/HSPA solution with GSM/(E)GPRS fall-back in the miniature (26.0 x 16.0 mm, 96-pin) SARA LGA form factor that allows seamless drop-in migration from / to other u-blox cellular modules families.

SARA-U2 modules feature HSPA data-rates of 7.2 Mbit/s (downlink) and 5.76 Mbit/s (uplink). The modules offer data and voice communication over an extended operating temperature range of –40 °C to +85 °C, with low power consumption and a rich feature set including dual-stack IPv4 / IPv6.

The SARA-U2 series includes variants supporting band combinations for worldwide operation, for operation in North America, Europe, Asia and other countries. A cost-saving UMTS-only variant is also available.

SARA-U2 modules are complete, fully qualified and certified solutions, which reduce costs and enable short time to market. They are ideally suited to M2M applications such as: mobile internet terminals, car infotainment and telematics, Automatic Meter Reading (AMR), Remote Monitoring Automation and Control (RMAC), surveillance and security, road pricing, asset tracking, fleet management, anti-theft systems, and Point of Sales (PoS) terminals. SARA-U2 modules support full access to u-blox GNSS receivers via serial port. Thus any host processor connected to the cellular module through a single serial port can control both the cellular module and the positioning chip/module. The compact SARA 26.0 x 16.0 mm form factor with LGA pads (functionally referred to as “pins”) allows fully automated assembly with standard pick & place and reflow soldering equipment for costefficient, high-volume production.

1.2 Product features

Table 1: SARA-U2 series main features summary3

Second UART interface and FOTA not supported by "03" and "63" product versions

SARA-U270-73S and SARA-U270-53S module product versions do not support 2G radio access technology

SARA-U201 ATEX and SARA-U270 ATEX modules provide the same feature set as the SARA-U201 and SARA-U270 modules respectively, with the additional certification for use in potentially explosive atmospheres. Unless otherwise specified, SARA-U201 refers to all SARA-U201 ATEX and SARA-U201 modules; in the same way SARA-U270 refers to both SARA-U270 ATEX and SARA-U270 modules.

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Memory

V_BCKP (RTC)

V_INT (I/O)

transceiver

Power

Management

Cellular BaseBand Processor

ANT

VCC (Supply)

USB

DDC (I2C) / AUX UART

SIM card detection

SIM

UART

Power-On

Reset

Digital audio (I2S)

GPIO

Antenna detection

26 MHz

Duplexers

Filters

Switch

2G PA

32 kHz

LNAs

3G PA

Memory

V_BCKP (RTC)

V_INT (I/O)

transceiver

Power

Management

Cellular BaseBand Processor

ANT

VCC (Supply)

USB

DDC (I2C)

SIM card detection

SIM

UART

Power-On

Reset

Digital audio (I2S)

GPIO

Antenna detection

3G PA

26 MHz

Duplexer

Filter

Switch

2G PA

LNA

32 kHz

Memory

V_BCKP (RTC)

V_INT (I/O)

transceiver

Power

Management

Cellular BaseBand Processor

ANT

VCC (Supply)

USB

DDC (I2C)

SIM card detection

SIM

UART

Power-On

Reset

Digital audio (I2S)

GPIO

Antenna detection

3G PA

26 MHz

Duplexer

Filter

Switch

LNA

32 kHz

1.3 Block diagram

Figure 1: SARA-U201 block diagram

SARA-U2 series - Data Sheet

Figure 2: SARA-U260 and SARA-U270 block diagram

Figure 3: SARA-U280 block diagram

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SARA-U2 series - Data Sheet

3G UMTS/HSDPA/HSUPA characteristics

2G GSM/GPRS/EDGE characteristics4

Class A User Equipment5

Class B Mobile Station6

3GPP Release 7 High Speed Packet Access (HSPA) UMTS Terrestrial Radio Access (UTRA) Frequency Division Duplex (FDD)

3GPP Release 7 Enhanced Data rate GSM Evolution (EDGE) GSM EGPRS Radio Access (GERA) Time Division Multiple Access (TDMA)

Band support:

 SARA-U201:

Band 19 (800 MHz) Band 5 (850 MHz) Band 8 (900 MHz) Band 2 (1900 MHz) Band 1 (2100 MHz)

Band support:

 SARA-U201:

GSM 850 MHz E-GSM 900 MHz DCS 1800 MHz PCS 1900 MHz

 SARA-U260 and SARA-U280:

Band 5 (850 MHz) Band 2 (1900 MHz)

 SARA-U260:

GSM 850 MHz PCS 1900 MHz

 SARA-U270:

Band 8 (900 MHz) Band 1 (2100 MHz)

 SARA-U270:

E-GSM 900 MHz DCS 1800 MHz

WCDMA/HSDPA/HSUPA Power Class

 Power Class 3 (24 dBm) for WCDMA/HSDPA/HSUPA mode

GSM/GPRS Power Class

 Power Class 4 (33 dBm) for GSM/E-GSM bands  Power Class 1 (30 dBm) for DCS/PCS bands

EDGE Power Class7

 Power Class E2 (27 dBm) for GSM/E-GSM bands  Power Class E2 (26 dBm) for DCS/PCS bands

PS (Packet Switched) data rate

 HSUPA category 6, up to 5.76 Mbit/s UL  HSDPA category 8, up to 7.2 Mbit/s DL  WCDMA PS data, up to 384 kbit/s DL/UL

PS (Packet Switched) data rate8

 GPRS multi-slot class 12

, CS1-CS4 up to 85.6 kbit/s DL/UL

 EDGE multi-slot class 12

, MCS1-MCS911 up to 236.8 kbit/s DL/UL

CS (Circuit Switched) data rate

 WCDMA CS data, up to 64 kbit/s DL/UL

CS (Circuit Switched) data rate

 GSM CS data, up to 9.6 kbit/s DL/UL

supported in transparent/non transparent mode

1.4 Product description

SARA-U2 series modules provide variants to support different band combinations for specific regions:

 SARA-U201 modules are designed for worldwide operation  SARA-U260 and SARA-U280 modules are mainly designed for operation in America  SARA-U270 modules are mainly designed for operation in Europe, Asia and other countries

Table 2: SARA-U2 series 3G and 2G characteristics

Not supported by SARA-U270-73S, SARA-U270-53S and SARA-U280 modules

Device can work simultaneously in Packet Switch and Circuit Switch mode: voice calls are possible while the data connection is active

without any interruption in service.

Device can be attached to both GPRS and GSM services (i.e. Packet Switch and Circuit Switch mode) using one service at a time. If for example during data transmission an incoming call occurs, the data connection is suspended to allow the voice communication. Once the voice call has terminated, the data service is resumed.

SARA-U260 and SARA-U270 modules do not support 8-PSK modulation in uplink; the EDGE Power Class corresponds to the GSM/GPRS Power Class

GPRS / EDGE multi-slot class determines the number of timeslots available for upload and download and thus the speed at which data can be transmitted and received, with higher classes typically allowing faster data transfer rates.

GPRS multi-slot class 12 implies a maximum of 4 slots in DL (reception) and 4 slots in UL (transmission) with 5 slots in total.

EDGE multi-slot class 12 implies a maximum of 4 slots in DL (reception) and 4 slots in UL (transmission) with 5 slots in total.

SARA-U260, SARA-U270 modules support EDGE multi-slot class 12, MCS1-MCS9 up to 236.8 kbit/s DL, MCS1-MCS4 up to 70.4 kbit/s UL

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SARA-U2 series - Data Sheet

Basic features

Supplementary services

Short Message Service (SMS)

Display of Called Number

Call Hold/Resume (HOLD)

Text and PDU mode supported

Indication of Call Progress Signals

Call Waiting (CW)

Mobile-Originating SMS (MO SMS)

Country/PLMN Indication

Multi-Party (MTPY)

Mobile-Terminating SMS (MT SMS)

Country/PLMN Selection

Call Forwarding (CFU, CFB, CFNRy, CFNRc)

SMS indication and acknowledgement

International Access Function

Call Deflection (CD)

SMS Cell Broadcast (CBS)

Service Indicator

Explicit Call Transfer (ECT)

SMS during circuit-switched calls

Emergency Calls Capabilities

Call Barring (BAOC, BOIC, BOIC-exHC, BAIC, BIC_Roam)

SMS over CSD

Dual Tone Multi Frequency (DTMF)

Advice of Charge Charging (AoCC, AoCI)

SMS over PSD

Subscription Identity Management

Calling Line Identification Presentation (CLIP)

SMS storage on SIM

Service Provider Indication

Calling Line Identification Restriction (CLIR)

SMS storage on module memory

Abbreviated Dialing

Connected Line Identification Presentation (CoLP)

Concatenated SMS

Fixed Number Dialing

Connected Line Identification Restriction (CoLR)

Barring of Dialed Numbers

Unstructured Supplementary Services Data (USSD)

SIM Application Toolkit

Network Identify and Time Zone (NITZ)

ME-SIM lock

Calling Name Presentation (CNAP)

SIM Access Profile

Feature

Description

Network indication

GPIO configured to indicate the network status: registered home network, registered roaming, voice or data call enabled, no service.

The feature can be enabled through the +UGPIOC AT command.

Antenna detection

The ANT_DET pin provides antenna presence detection capability, evaluating the resistance from the ANT pin to GND by means of an external antenna detection circuit implemented on the application board.

The antenna detection feature can be enabled through the +UANTR AT command.

Operation modes I to III are supported on GSM/GPRS networks, with user-defined preferred service selectable from GSM to GPRS. Paging messages for GSM calls can be optionally monitored during GPRS data transfer in not-coordinating NOM II-III. Direct Link mode is supported for TCP and UDP sockets.

Table 3: SARA-U2 series mobile stations: basic features, supplementary services and SMS service summary12

1.5 AT command support

SARA-U2 series modules support AT commands according to the 3GPP Technical Specifications 27.007 [1],

27.005 [2], 27.010 [3], and the u-blox AT command extension.

For the complete list of supported AT commands and their syntax, see the u-blox AT Commands

Manual [4].

RIL (Radio Interface Layer) software for Android and Embedded Windows is available for SARA-U2 series modules free of charge; see the Android RIL Production delivery [5] application note for more information.

1.6 Supported features

Table 4 lists the main features supported by SARA-U2 modules. For more details, see the SARA-G3 and SARA-U2 series System Integration Manual [6] and the u-blox AT commands manual [4].

All these functionalities are supported via AT commands (for more details see u-blox AT Commands Manual [4]).

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SARA-U2 series - Data Sheet

Feature

Description

Jamming detection

Detects some “artificial” interference that obscures the operator’s carriers entitled to give access to the

GSM/UMTS service and reports the start and stop of such conditions to the application processor (AP). The AP can react appropriately by e.g. switching off the radio transceiver to reduce power consumption and monitoring the environment at constant periods. The feature can be enabled and configured through the +UCD AT command.

Embedded TCP and UDP stack

Embedded TCP/IP and UDP/IP stack including direct link mode for TCP and UDP sockets. Sockets can be set in Direct Link mode to establish a transparent end to end communication with an already

connected TCP or UDP socket via serial interface.

FTP, FTPS

File Transfer Protocol as well as Secure File Transfer Protocol (SSL encryption of FTP control channel) functionalities are supported via AT commands.

HTTP, HTTPS

Hyper-Text Transfer Protocol as well as Secure Hyper-Text Transfer Protocol (SSL encryption) functionalities is supported via AT commands. HEAD, GET, POST, DELETE and PUT operations are available. Up to four client contexts can be simultaneously used.

Embedded TLS 1.214

With the support of X.509 certificates, Embedded TLS 1.2 provides server and client authentication, data encryption, data signature and enables TCP/IP applications like HTTPS and FTPS to communicate over a secured and trusted connection.

The feature can be configured and enabled by +USECMNG and +USECPRF AT commands.

IPv4/IPv6 dual-stack

Capability to move between IPv4 and dual stack network infrastructures using external context. IPv4 and IPv6 addresses can be used.

GNSS via modem

Full access to u-blox positioning chips and modules is available through a dedicated DDC (I2C) interface. This means that from any host processor, a single serial port can control the cellular module and the positioning chip or module. For more details, see the GNSS Implementation Application Note [7].

Embedded AssistNow Software

Embedded AssistNow Online and AssistNow Offline clients to provide better GNSS performance and faster Time-to-First-Fix. An AT command can enable / disable the clients.

CellLocate®

Enables the estimation of device position based on the parameters of the mobile network cells visible to the specific device based on the CellLocate® database:

 Normal scan: only the parameters of the visible home network cells are sent  Deep scan: the parameters of all surrounding cells of all mobile operators are sent

CellLocate® is implemented using a set of AT commands that allow configuration and position request.

Hybrid Positioning

The module current position is provided using a u-blox positioning chip or module or the estimated position from CellLocate® depending by which positioning method provides the best and fastest solution according to the user configuration. Hybrid positioning is implemented through a set of AT commands that allow configuration and position request.

Control Plan Aiding / LCS14

Assisted GPS Location Services feature, which is based on the Radio Resources Location Protocol (RRLP), according to 3GPP TS 44.031 [9], and Radio Resource Control (RRC), according to 3GPP TS 25.331 [17]. With the Assisted GPS feature, a location server provides the module with the GPS system information that otherwise must be downloaded from satellites. The feature allows faster position fixes, increases sensitivity and reduces module power consumption. The feature is invoked by the module through LCS Supplementary Services or by the Network during emergency calls.

Firmware update Over AT commands (FOAT)

Firmware module upgrade over UART and USB interface using AT command. The firmware upgrade can be executed through the +UFWUPD AT command.

Smart Temperature Supervisor

Constant monitoring of the module board temperature:

 Warning notification when the temperature approaches an upper or lower predefined threshold  Shutdown notified and forced when the temperature value is outside the specified range (shutdown

suspended in case of an emergency call in progress)

The feature can be enabled or disabled through the +USTS AT command.

The sensor measures the board temperature, which can differ from the ambient temperature.

SIM Access Profile (SAP)

Allows access and use of a remote (U)SIM card instead of the local SIM card directly connected to the module (U)SIM interface. The module acts as an SAP Client establishing a connection and performing data exchange to a SAP Server directly connected to the remote SIM. The modules provide a dedicated USB SAP channel and a dedicated multiplexer SAP channel over UART for communication with the remote (U)SIM card.

The feature can be configured and enabled by +USAPMODE and + USAPIND AT commands.

BIP

Bearer Independent Protocol for Over-the-Air SIM provisioning. The data transfer to/from the SIM uses either an already active PDP context or a new PDP context established with the APN provided by the SIM card.

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SARA-U2 series - Data Sheet

Feature

Description

In-Band Modem13

In-Band modem solution for eCall and ERA-GLONASS emergency call applications over cellular networks implemented according to the 3GPP TS 26.267 specification [8].

When activated, the in-vehicle eCall / ERA-GLONASS system (IVS) creates an emergency call carrying both voice and data (including vehicle position data) directly to the nearest Public Safety Answering Point (PSAP) to determine whether rescue services should be dispatched to the known position.

DTMF decoder

During a voice call, the Dual-Tone Multi-Frequency detector analyses the RX speech (coming from the remote party). The detected DTMF symbols can be output via the related URC.

For more details, see the +UDTMFD AT command.

Power saving

The power saving configuration is disabled by default, but it can be configured using an AT command. When power saving is enabled, the module automatically enters the low power idle-mode whenever possible, reducing current consumption. During idle-mode, the module processor core runs with the RTC 32 kHz reference clock. The feature can be enabled through the +UPSV AT command.

Automatic selection of authentication type14

Automatic selection of authentication type during PDP context activation. The module will sequentially try different authentication protocols (none/CHAP/PAP) until the authentication succeeds.

The feature can be enabled through the +UPSD and +UAUTHREQ AT commands.

Signal quality report for Packet Switched calls14

The quality of the GPRS UL and/or DL connection is returned by the AT+CSQ command.

eMLPP14

Multi-Level Precedence and Pre-emption Service (eMLPP) permits to handle the call priority. The maximum priority associated to a user is set in the SIM: within this threshold, the user can assign different priorities to the calls. This results in a differentiated treatment of the calls by the network in case of abnormal events such as handovers to congested cells.

The feature can be enabled through the +CAEMLPP, +CPPS, +CAAP AT commands.

Network Friendly Mode14

When the Network Friendly Mode is enabled, the module reacts to service request denials by using time-spaced, randomized or delayed retry schemes according to GSMA IoT Device Connection Efficiency Guidelines [18].

The feature can be enabled through the +UNFM, +UNFMCONF and +URPM AT commands.

Ethernet (CDC-ECM) over USB interface14

Ethernet (CDC-ECM) interface allowing networking from a HOST by means of the IP address received from the cellular network (bridge mode).

The HOST configuration is performed via the DHCP protocol (a DHCP server is implemented). It operates as a not exclusive alternative to PPP dial-up. The feature can be configured by +UUSBCONF and enabled by +UCEDATA AT commands.

ODIS15

OMA-DM IMEI Sync (ODIS) is an AT&T functionality required at the cellular module level and used to identify the end device operating inside the network.

Last gasp16

In case of power supply outage (i.e. main supply interruption, battery removal, battery voltage below a certain threshold) the cellular module can be configured to send an alarm notification to a remote entity.

The feature can be enabled and configured through the +ULGASP AT command.

Firmware update Over The Air (FOTA)16

Embedded FOTA client to enable the Firmware module update over the cellular air interface. The feature can be enabled and configured through the +UFWINSTALL AT command.

Smart radio Coverage Manager (SCM)16

Smart radio coverage manager is a feature that aims to reduce the power consumption in those cellular scenarios where the radio coverage or the network conditions would cause an inefficient usage of power supply.

Table 4: Main supported features of the SARA-U2 series

u-blox is extremely mindful of user privacy. When a position is sent to the CellLocate

unable to track the SIM or the specific device that sent the position.

Not supported by SARA-U260 and SARA-U280 modules

Not supported by “00” product version

Not supported on SARA-U260, SARA-U270 and SARA-U280 modules

Not supported by "00","03","53","63","73" product versions

UBX-13005287 - R19 Functional description

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server, u-blox is

SARA-U2 series - Data Sheet

2 Interfaces

2.1 Power management

2.1.1 Module supply (VCC)

SARA-U2 modules must be supplied through the VCC pins by a DC power supply. Voltages must be stable: during operation, the current drawn from VCC can vary by some order of magnitude, especially due to the surging consumption profile of the GSM system (described in the SARA-G3 and SARA-U2 series System Integration Manual [6]). It is important that the system power supply circuit is able to support peak power.

2.1.2 RTC supply (V_BCKP)

V_BCKP is the Real Time Clock (RTC) supply of SARA-U2 modules. When VCC voltage is within the valid

operating range, the internal Power Management Unit (PMU) supplies the RTC and the same supply voltage is available on V_BCKP pin. If the VCC voltage is under the minimum operating limit (e.g. during not powered mode), the V_BCKP pin can externally supply the RTC.

2.1.3 Generic digital interfaces supply (V_INT)

SARA-U2 modules provide a 1.8 V supply rail output on the V_INT pin, which is internally generated when the module is switched on. The same voltage domain is used internally to supply the generic digital interfaces of the modules. The V_INT supply output can be used in place of an external discrete regulator optimizing the bill of material for various applications, e.g. with u-blox GNSS receivers operating at 1.8 V.

2.2 Antenna

2.2.1 Antenna RF interface (ANT)

The ANT pin has an impedance of 50  and provides the RF antenna interface of SARA-U2 modules.

2.2.2 Antenna detection (ANT_DET)

The ANT_DET pin is an Analog to Digital Converter (ADC) input used to sense the antenna presence (as optional feature), evaluating the resistance from the ANT pin to GND by means of an external antenna detection circuit implemented on the application board (for more details, see the SARA-G3 and SARA-U2 series System Integration Manual [6] and the u-blox AT Commands Manual [4], +UANTR).

2.3 System functions

2.3.1 Module power-on

SARA-U2 modules can be switched on in one of the following ways:

 Rising edge on VCC pins to a valid voltage for module supply, i.e. applying module supply  Low pulse on PWR_ON pin, i.e. forcing the pin (normally high with external pull-up) to a low level for a valid

time period (see section 4.2.6): PWR_ON pin requires an external pull-up resistor to set its value to logic high and may not be left floating

 Rising edge on RESET_N pin, i.e. releasing the pin from the low level, normally high with internal pull-up  RTC alarm, i.e. pre-programmed scheduled time by AT+CALA command

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SARA-U2 series - Data Sheet

2.3.2 Module power-off

SARA-U2 modules can be properly switched off, with storage of current parameter settings and network detach, in one of these ways:

 AT+CPWROFF command  Low pulse on the PWR_ON pin for at least 1 second

An abrupt under-voltage shutdown occurs on SARA-U2 modules when the VCC supply drops below the extended operating range minimum limit, but in this case it is not possible to perform the storing of the current parameter settings in the module’s non-volatile memory as well as the proper network detach.

An over-temperature or an under-temperature shutdown occurs on SARA-U2 modules when the temperature measured within the cellular module reaches the dangerous area, if the optional Smart Temperature Supervisor feature is enabled and configured by the dedicated AT command. For more details, see the SARA-G3 and SARA-U2 series System Integration Manual [6] and the u-blox AT commands manual [4], +USTS AT command.

2.3.3 Module reset

SARA-U2 modules can be properly reset (rebooted), with storage of current parameter settings and network detach, in this way:

 By the AT+CFUN command (see the u-blox AT Commands Manual [4]). This causes an “internal” or

“software” reset of the baseband processor, excluding the integrated power management unit and the RTC

internal block: the V_INT generic digital interfaces supply is enabled and each digital pin is set to its internal reset state (reported in Table 6), the V_BCKP supply and the RTC block are enabled.

An abrupt “external” or “hardware” reset occurs when a low level is applied to the RESET_N pin, which is normally set high by an internal pull-up, for a valid time period (see section 4.2.7). This causes a reset of the entire module, including the integrated power management unit, except for the RTC internal block: the V_INT generic digital interfaces supply is switched off and all the digital pins are tri-stated, but the V_BCKP supply and the RTC block are enabled. The current parameter settings are not saved in the module’s non-volatile memory and a proper network detach is not performed.

2.4 SIM

2.4.1 (U)SIM interface

SARA-U2 modules provide a (U)SIM interface on the VSIM, SIM_IO, SIM_CLK, SIM_RST pins: the high-speed SIM/ME interface is implemented as well as automatic detection of the required SIM supporting voltage.

Both 1.8 V and 3 V SIM card/chip types are supported (1.8 V and 3 V ME). Activation and deactivation with automatic voltage switch from 1.8 V to 3 V is implemented, according to ISO-IEC 7816-3 specifications. The SIM driver supports the PPS (Protocol and Parameter Selection) procedure for baud-rate selection, according to the values proposed by the SIM card/chip.

2.4.2 SIM card detection (SIM_DET)

The SIM_DET pin of SARA-U2 modules is a 1.8 V digital input which is configured by default as an external interrupt to detect the SIM card presence (as a feature which can be optionally used) when it is properly connected to the mechanical switch of the SIM card holder (for more details, see the SARA-G3 and SARA-U2 series System Integration Manual [6]).

The SIM_DET pin of SARA-U2 modules can additionally be configured via AT command to provide the “SIM card hot insertion/removal” function (for more details, see u-blox AT Commands Manual [4], +UDCONF=50).

The SIM_DET pin of SARA-U2 modules can additionally be configured via AT command as GPIO (for more details, see section 2.7 and the u-blox AT Commands Manual [4], +UGPIOC, +UGPIOR, +UGPIOW).

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SARA-U2 series - Data Sheet

2.5 Serial interfaces

SARA-U2 modules provide the following serial communication interfaces:

 UART interface: 9-wire unbalanced 1.8 V asynchronous serial interface supporting (see 2.5.1)

o AT command mode o Data mode and Online command mode o MUX functionality, including dedicated GNSS tunneling and SIM Access Profile virtual channels o FW upgrades by means of the FOAT feature o FW upgrades by means of the u-blox EasyFlash tool o Trace log capture (diagnostic purpose)

 Auxiliary UART interface

function, in mutually exclusive way, over the DDC (I2C) interface’ pins, supporting (see 2.5.2)

o AT command mode o Trace log capture (diagnostic purpose)

 USB interface: High-Speed USB 2.0 compliant interface supporting (see 2.5.3)

o AT command mode o Data mode and Online command mode o GNSS tunneling and SIM Access Profile virtual channels o Ethernet-over-USB o FW upgrades by means of the FOAT feature o FW upgrades by means of the u-blox EasyFlash tool o Trace log capture (diagnostic purpose)

 DDC interface: I

C-bus compatible 1.8 V interface supporting (see 2.5.4)

o Communication with u-blox GNSS positioning chips / modules o Communication with other external I

: 3-wire unbalanced 1.8 V asynchronous serial interface, available as alternative

virtual channel

C devices as an audio codec

2.5.1 Asynchronous serial interface (UART)

The UART interface is a 9-wire 1.8 V unbalanced asynchronous serial interface supporting AT command mode, Data mode and Online command mode, MUX functionality, including dedicated GNSS tunneling and SIM Access Profile virtual channels, FW upgrades by means of the FOAT feature, FW upgrades by means of the u-blox EasyFlash tool, and Trace log capture (diagnostic purpose).

The UART features are:

 Complete serial port with RS-232 functionality conforming to the ITU-T V.24 Recommendation [10], with

CMOS compatible signal levels (0 V for low data bit or ON state and 1.8 V for high data bit or OFF state)

 Data lines (RXD as output, TXD as input), hardware flow control lines (CTS as output, RTS as input), modem

status and control lines (DTR as input, DSR as output, DCD as output, RI as output) are provided

 Hardware flow control (default value), software flow control, or none flow control are supported  Power saving indication available

OFF state when the module is not prepared to accept data by the UART interface

See the u-blox AT Commands Manual [4] for the definition of the command mode, data mode, and online command mode.

SARA-U2 modules product versions "00", "03", "53", "63", "73" do not provide Auxiliary UART interface.

SARA-U2 modules product versions "00" do not support Ethernet-over-USB.

If enabled

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on the hardware flow control output (CTS line): the line is driven to the

SARA-U2 series - Data Sheet

 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800 and 921600 bit/s baud rates are

supported for the AT interface

 Autobauding is enabled by default  Frame format can be:

o 8N2 (8 data bits, no parity, 2 stop bits) o 8N1 (8 data bits, no parity, 1 stop bit) o 8E1 (8 data bits, even parity, 1 stop bit) o 8O1 (8 data bits, odd parity, 1 stop bit) o 7E1 (7 data bits, even parity, 1 stop bit) o 7O1 (7 data bits, odd parity, 1 stop bit)

 Default frame configuration is 8N1

The UART serial interface can be conveniently configured through AT commands. For more details, see the

u-blox AT Commands Manual [4] (+IPR, +ICF, +IFC, &K, \Q, +UPSV AT command) and the SARA-G3 and SARA-U2 series System Integration Manual [6].

2.5.1.1 Autobauding feature

Only one shot autobauding is supported: the baud rate detection is performed only once, at module start-up. After detection the module works at the fixed baud rate (the detected one) and the baud rate can only be

changed via the appropriate AT command (+IPR, for more details, see the u-blox AT Commands Manual [4]).

 The module detects the followings baud rates (bit/s): 1200, 2400, 4800, 9600, 19200, 38400, 57600,

115200, 230400

 The only detectable frame configurations are: 7E1, 7O1, 8N1, 8E1, 8O1

2.5.1.2 Multiplexer protocol

SARA-U2 module has a software layer with MUX functionality, 3GPP TS 27.010 Multiplexer Protocol [3], available on the UART interface.

The multiplexer protocol is supported only over the UART physical interface.

This is a data link protocol (layer 2 of OSI model) which uses HDLC-like framing and operates between the cellular module (Data Circuit-terminating Equipment) and the application processor (Data Terminal Equipment) allowing simultaneous sessions over the UART physical link: the user can concurrently use the AT command interface on one MUX channel and Data communication on another MUX channel. Each session consists of a stream of bytes transferring various kinds of data such as SMS, CBS, PSD, GNSS, AT commands in general.

SARA-U2 modules provide the following virtual channels:

 Channel 0: control channel  Channel 1 – 5: AT commands / data connection  Channel 6: GNSS tunneling  Channel 7: SAP (SIM Access Profile)

For more details, see the Mux Implementation Application Note [11].

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SARA-U2 series - Data Sheet

2.5.2 Auxiliary asynchronous serial interface (AUX UART)

Not supported by "00", "03", "53", "63", "73" product versions.

The auxiliary UART interface is a 3-wire 1.8 V unbalanced asynchronous serial interface supporting AT command mode and Trace log capture (diagnostic purpose).

The auxiliary UART interface is disabled by default, and it can be enabled by means of the +USIO AT command (for more details, see the u-blox AT Commands Manual [4]), as alternative function of the DDC (I2C) interface’ pins, in mutually exclusive way with the DDC (I2C) interface.

The auxiliary UART features are:

 Only the RXD_AUX data output and the TXD_AUX data input are provided, with CMOS compatible signal

levels (0 V for low data bit or ON state and 1.8 V for high data bit or OFF state)

 Data lines (SCL pin configured as RXD_AUX output, SDA pin configured as TXD_AUX input)  Software flow control, or none flow control (default value) are supported  1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800 and 921600 bit/s baud rates are

supported for the AT interface

 Autobauding is enabled by default  Frame format can be:

 Default frame configuration is 8N1

The auxiliary UART serial interface can be conveniently configured through AT commands. For more details, see the u-blox AT Commands Manual [4] (+IPR, +ICF, +IFC, &K, \Q, +UPSV AT command) and the SARA-G3 and SARA-U2 series System Integration Manual [6].

2.5.2.1 Autobauding feature

changed via the appropriate AT command (+IPR, for more details, see the u-blox AT Commands Manual [4]).

 The module detects the followings baud rates (bit/s): 1200, 2400, 4800, 9600, 19200, 38400, 57600,

115200, 230400

 The only detectable frame configurations are: 7E1, 7O1, 8N1, 8E1, 8O1

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SARA-U2 series - Data Sheet

2.5.3 Universal Serial Bus (USB)

SARA-U2 series modules include a high-speed USB 2.0 compliant interface with a maximum 480 Mbit/s data rate. The module itself acts as a USB device and can be connected to any USB host.

The USB is the suitable interface for transferring high speed data between SARA-U2 series and a host processor, available for AT commands, data communication, FW upgrade by means of the FOAT feature, FW upgrade by means of the u-blox EasyFlash tool and for diagnostic purpose.

The USB_D+ / USB_D- lines carry the USB serial data and signaling. The USB interface is automatically enabled by an external valid USB VBUS supply voltage (5.0 V typical) applied on the VUSB_DET pin.

SARA-U2 series modules can provide the following functions over the USB interface:

 CDC-ACM for AT commands and data communication  CDC-ACM for GNSS tunneling  CDC-ACM for diagnostic  CDC-ACM for SAP (SIM Access Profile)  CDC-ECM for Ethernet-over-USB

CDC-ECM for Ethernet-over-USB function is not supported by the “00” product version.

The default configuration of the USB interface provides 7 USB CDC-ACM modem COM ports:

 USB1: AT and data  USB2: AT and data  USB3: AT and data  USB4: GNSS tunneling  USB5: Primary Log (diagnostic purpose)  USB6: Secondary Log (diagnostic purpose)  USB7: SAP (SIM Access Profile)

The user can concurrently use the AT command interface on one CDC, and Packet-Switched / Circuit-Switched Data communication on another CDC.

The USB interface can be configured by the AT+UUSBCONF command to provide a different set of functions, including 1 CDC-ECM for Ethernet-over-USB and 4 CDC-ACM modem COM ports enumerated as follows:

 USB1: AT and data  USB2: GNSS tunneling  USB3: Primary Log (diagnostic purpose)  USB4: SAP (SIM Access Profile)

The default profile of the USB interface cannot be changed on the “00” product version.

For more details regarding the USB configurations and capabilities, see the SARA-G3 and SARA-U2 series System Integration Manual [6] and the u-blox AT Commands Manual [4] (+UUSBCONF AT command).

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SARA-U2 series - Data Sheet

USB drivers are available for the following operating system platforms:

 Windows XP  Windows Vista  Windows 7  Windows 8  Windows 8.1  Windows 10  Windows CE 5.0  Windows Embedded CE 6.0  Windows Embedded Compact 7  Windows Embedded Automotive 7  Windows Mobile 5  Windows Mobile 6  Windows Mobile 6.1  Windows Mobile 6.5

SARA-U2 modules are compatible with the standard Linux/Android USB kernel drivers.

2.5.4 DDC (I

C) bus interface

SARA-U2 modules include an I2C compatible DDC interface (SDA, SCL) available to communicate with a u-blox GNSS receiver and with external I2C devices as an audio codec: SARA-U2 module acts as an I2C master which can communicate with I2C slaves in accordance to the I2C bus specifications [12].

2.6 Audio

SARA-U2 modules have one 4-wire I2S digital audio interface (I2S_CLK, I2S_RXD, I2S_TXD and I2S_WA) that can be configured by AT commands in PCM or in normal I2S mode. (For more details, see the u-blox AT Commands Manual [4] and the SARA-G3 and SARA-U2 series System Integration Manual [6].)

SARA-U2 modules provide a digital clock output (CODEC_CLK) for an external audio codec.

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SARA-U2 series - Data Sheet

Function

Description

Module

Default GPIO

Configurable GPIOs

GSM Tx-burst indication

GSM transmit slot indication

SARA-U201, SARA-U260, SARA-U270

GPIO1

GNSS supply enable

Enable/disable the supply of the u-blox GNSS receiver connected to the cellular module

All

GPIO2

GPIO1, GPIO2, GPIO3, GPIO4, SIM_DET

GNSS data ready

Input to sense when the u-blox GNSS receiver connected to the cellular module is ready for sending data over the DDC (I2C) interface

All

GPIO3

GPIO3 GNSS RTC sharing

RTC synchronization signal to the u-blox GNSS receiver connected to the cellular module

All

GPIO4

GPIO4 SIM card detection

SIM card physical presence detection

All

SIM_DET

SIM card hot insertion

Enable/disable SIM interface upon detection of external SIM card physical insertion/removal

All

SIM_DET

Last gasp21

Input to trigger the delivery of a last alarm notification to a remote entity

SARA-U201

GPIO3

Network status indication

Network status: registered 2G / 3G home network, registered 2G / 3G roaming, 2G / 3G data transmission, no service

All

GPIO1, GPIO2, GPIO3, GPIO4, SIM_DET

Module status indication

Module status: power off mode, i.e. module switched off, versus idle, active or connected mode, i.e. module switched on

All

GPIO1 Module operating mode indication

Module operating mode: idle mode versus active or connected mode

All

SIM_DET

I2S digital audio interface

I2S digital audio interface (I2S_RXD, I2S_TXD, I2S_CLK, I2S_WA respectively)

All

I2S_RXD, I2S_TXD, I2S_CLK, I2S_WA

General purpose input

Input to sense high or low digital level

All

General purpose output

Output to set the high or the low digital level

All

Pin disabled

Tri-state with an internal active pull-down enabled

All

GPIO1

All

2.7 GPIO

SARA-U2 modules provide nine pins (GPIO1, GPIO2, GPIO3, GPIO4, I2S_RXD, I2S_TXD, I2S_CLK, I2S_WA, SIM_DET) which can be configured as general purpose input/output, or to provide the custom functions listed in

Table 5 via u-blox AT commands. For further details, see the SARA-G3 and SARA-U2 series System Integration Manual [6] and the u-blox AT Commands Manual [4], +UGPIOC, +UGPIOR, +UGPIOW, +UGPS, +UGPRF,

+USPM, +UDCONF=50, +ULGASP AT commands.

Table 5: GPIO custom functions configuration

Not supported by "03", "63" product versions

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64 63 61 60 58 57 55 54

22 23 25 26 28 29 31 32

65 66 67 68 69 70

71 72 73 74 75 76

77 78

79 80

81 82

83 84

85 86 87 88 89 90

91 92 93 94 95 96

CTS

RTS

DCD

V_INT

V_BCKP

GND

CODEC_CLK

RESET_N

GPIO1

PWR_ON

RXD

TXD

24 27 30

5962 56

GND

DSR

DTR

GND

VUSB_DET

GND

USB_D-

USB_D+

RSVD

GND

GPIO2

GPIO3

SDA

SCL

GPIO4

GND

RSVD

GND

VCC

RSVD

I2S_TXD

I2S_CLK

SIM_CLK

SIM_IO

VSIM

SIM_DET

VCC

RSVD

SIM_RST

I2S_RXD

I2S_WA

GND

ANT_DET

ANT

SARA-U2

Top View

Pin 65-96: GND

Name

Power domain

I/O

Description

Remarks

GND - N/A

Ground

All the GND pins must be connected to ground

V_BCKP

I/O

Real Time Clock supply input/output

V_BCKP = 1.8 V (typical) generated by the module to supply the Real Time Clock when VCC supply voltage is within valid operating range. See section 4.2.2 for detailed electrical specs.

GND - N/A

Ground

All the GND pins must be connected to ground

V_INT

Generic Digital Interfaces supply output

V_INT = 1.8 V (typical) generated by the module when it is switched on and the RESET_N (external reset input pin) is not forced to the low level.

See section 4.2.2 for detailed electrical specs.

GND - N/A

Ground

All the GND pins must be connected to ground

3 Pin definition

3.1 Pin assignment

SARA-U2 series - Data Sheet

Figure 4: SARA-U2 series pin assignment

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SARA-U2 series - Data Sheet

Name

Power domain

I/O

Description

Remarks

DSR

GDI O UART data set ready

Circuit 107 (DSR) in ITU-T V.24. Output driver class D. PU/PD class a. Value at internal reset: T/PU. See section 4.2.9 for detailed electrical specs.

GDI O UART ring indicator

Circuit 125 (RI) in ITU-T V.24. Output driver class C_0. PU/PD class c. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

DCD

GDI O UART data carrier detect

Circuit 109 (DCD) in ITU-T V.24. Output driver class C_0. PU/PD class c. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

DTR

GDI

UART data terminal ready

Circuit 108/2 (DTR) in ITU-T V. 24. Internal active pull-up to V_INT enabled. PU/PD class c. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

RTS

GDI I UART ready to send

Circuit 105 (RTS) in ITU-T V.24. Internal active pull-up to V_INT enabled. PU/PD class a. Value at internal reset: T/PU. See section 4.2.9 for detailed electrical specs.

CTS

GDI O UART clear to send

Circuit 106 (CTS) in ITU-T V.24. Output driver class A. PU/PD class a. Value at internal reset: T/PU. See section 4.2.9 for detailed electrical specs.

TXD

GDI I UART data input

Circuit 103 (TxD) in ITU-T V.24. Internal active pull-up to V_INT enabled. PU/PD class a. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

RXD

GDI O UART data output

Circuit 104 (RxD) in ITU-T V.24. Output driver class A. PU/PD class a. Value at internal reset: T/PU. See section 4.2.9 for detailed electrical specs.

GND - N/A

Ground

All the GND pins must be connected to ground

PWR_ON

POS I Power-on input

The PWR_ON pin has high input impedance: don’t leave it floating in noisy environment (an external pull-up resistor is required)

See section 4.2.6 for detailed electrical specs.

GPIO1

GDI

I/O

GPIO

GPIO configurable as described in Table 5. Output driver class A. PU/PD class a. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

VUSB_DET

USB I USB detect input

Input for VBUS (5 V typical) USB supply sense. See section 4.2.10 for detailed electrical specs.

RESET_N

ERS I External reset input

Internal 10 k pull-up resistor to V_BCKP. See section 4.2.7 for detailed electrical specs.

CODEC_CLK

GDI O Clock output

Output driver class B. PU/PD class b. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

GND - N/A

Ground

All the GND pins must be connected to ground

GND - N/A

Ground

All the GND pins must be connected to ground

GND - N/A

Ground

All the GND pins must be connected to ground

GPIO2

GDI

I/O

GPIO

GPIO configurable as described in Table 5. Output driver class A. PU/PD class a. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

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SARA-U2 series - Data Sheet

Name

Power domain

I/O

Description

Remarks

GPIO3

GDI

I/O

GPIO

GPIO configurable as described in Table 5. Output driver class A. PU/PD class a. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

GPIO4

GDI

I/O

GPIO

GPIO configurable as described in Table 5. Output driver class A. PU/PD class a. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

SDA

DDC

I/O

I2C bus data line

Fixed open drain. No internal pull-up. Value at internal reset: T. See section 4.2.11 for detailed electrical specs.

GDI I AUX UART data input

Not supported by "00","03","53","63","73" product versions Circuit 103 (TxD) in ITU-T V.24. Internal active pull-up to V_INT enabled. PU/PD class a. Value at internal reset: T. See section 4.2.9 for detailed electrical specs.

SCL

DDC O I2C bus clock line

Fixed open drain. No internal pull-up. Value at internal reset: T. See section 4.2.11 for detailed electrical specs.

GDI O AUX UART data output

Not supported by "00","03","53","63","73" product versions Circuit 104 (RxD) in ITU-T V.24. Output driver class E. PU/PD class a. Value at internal reset: T. See section 4.2.9 for detailed electrical specs.

USB_D-

USB

I/O

USB Data Line D-

90  nominal differential impedance. Pull-up, pull-down and series resistors as required by USB 2.0 specifications [15] are part of the USB pin driver and need not

be provided externally. Value at internal reset: T. See section 4.2.10 for detailed electrical specs.

USB_D+

USB

I/O

USB Data Line D+

90  nominal differential impedance. Pull-up, pull-down and series resistors as required by USB 2.0

specifications [15] are part of the USB pin driver and need not be provided externally. Value at internal reset: T. See section 4.2.10 for detailed electrical specs.

GND - N/A

Ground

All the GND pins must be connected to ground

RSVD

N/A

RESERVED pin

Leave unconnected.

GND - N/A

Ground

All the GND pins must be connected to ground

RSVD

N/A

RESERVED pin

This pin must be connected to GND.

I2S_WA

GDI

I/O / I/O

I2S word alignment / GPIO

Configurable as I2S word alignment (Input with internal active pull-down enabled in slave mode, Output in master mode), or as GPIO (see Table 5).

Output driver class C. PU/PD class a. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

I2S_TXD

GDI

O / I/O

I2S transmit data / GPIO

Configurable as I2S transmit data out, or as GPIO (see Table 5) Output driver class C. PU/PD class a. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

I2S_CLK

GDI

I/O / I/O

I2S clock / GPIO

Configurable as I2S clock (Input with internal active pull-down in slave mode, Output in master mode), or as GPIO (see Table 5).

Output driver class C. PU/PD class a. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

UBX-13005287 - R19 Pin definition

Page 21 of 57

SARA-U2 series - Data Sheet

Name

Power domain

I/O

Description

Remarks

I2S_RXD

GDI

I / I/O

I2S receive data / GPIO

Configurable as I2S receive data input (with internal active pulldown enabled), or as GPIO (see Table 5).

Output driver class C. PU/PD class a. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

SIM_CLK

SIM O SIM clock

Value at internal reset: L. See section 4.2.8 for detailed electrical specs.

SIM_IO

SIM

I/O

SIM data

Internal 4.7 k pull-up resistor to VSIM. Value at internal reset: L/PD. See section 4.2.8 for detailed electrical specs.

SIM_RST

SIM O SIM reset

Value at internal reset: L. See section 4.2.8 for detailed electrical specs.

VSIM - O

SIM supply output

VSIM = 1.80 V typical or 2.90 V typical generated by the module according to the SIM card type.

See section 4.2.2 for detailed electrical specs.

SIM_DET

GDI

SIM detection

Configurable for the SIM card presence detection function, or as GPIO (see Table 5).

PU/PD class a. Value at internal reset: T/PD. See section 4.2.9 for detailed electrical specs.

GND - N/A

Ground

All the GND pins must be connected to ground

RSVD

N/A

RESERVED pin

Leave unconnected.

RSVD

N/A

RESERVED pin

Leave unconnected.

RSVD

N/A

RESERVED pin

Leave unconnected.

RSVD

N/A

RESERVED pin

Leave unconnected.

RSVD

N/A

RESERVED pin

Leave unconnected.

RSVD

N/A

RESERVED pin

Leave unconnected.

GND - N/A

Ground

All the GND pins must be connected to ground

VCC - I

Module supply input

All VCC pins must be connected to external supply. See sections 4.2.2 and 4.2.3 for detailed specs.

VCC - I

Module supply input

All VCC pins must be connected to external supply. See sections 4.2.2 and 4.2.3 for detailed specs.

VCC - I

Module supply input

All VCC pins must be connected to external supply. See sections 4.2.2 and 4.2.3 for detailed specs.

GND - N/A

Ground

All the GND pins must be connected to ground

GND - N/A

Ground

All the GND pins must be connected to ground

ANT - I/O

RF input/output

50  nominal impedance See section 4.2.4 for detailed electrical specs.

GND - N/A

Ground

All the GND pins must be connected to ground

GND - N/A

Ground

All the GND pins must be connected to ground

GND - N/A

Ground

All the GND pins must be connected to ground

GND - N/A

Ground

All the GND pins must be connected to ground

GND - N/A

Ground

All the GND pins must be connected to ground

ANT_DET

ADC

Antenna detection

Antenna presence detection function. See section 4.2.5 for detailed electrical specs.

GND - N/A

Ground

All the GND pins must be connected to ground

GND - N/A

Ground

All the GND pins must be connected to ground

65-96

GND - N/A

Ground

All the GND pins must be connected to ground

Table 6: SARA-U2 series module pin-out

For more information about pin-outs, see the SARA-G3 and SARA-U2 series System Integration

Manual [6].

For an explanation of the abbreviations and terms used, see Appendix A.

UBX-13005287 - R19 Pin definition

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SARA-U2 series - Data Sheet

Symbol

Description

Condition

Min.

Max.

Unit

VCC

Module supply voltage

Input DC voltage at VCC pins

-0.30

5.50 V VUSB_DET

USB detection pin

Input DC voltage at VUSB_DET pin

-0.30

5.35

USB

USB D+/D- pins

Input DC voltage at USB_D+ and USB_D- pins

-1.00

5.35

V_BCKP

RTC supply voltage

Input DC voltage at V_BCKP pin

-0.15

2.00

GDI

Generic digital interfaces

Input DC voltage at Generic digital interfaces pins

-0.30

3.60 V DDC

DDC interface

Input DC voltage at DDC interface pins

-0.30

3.60 V SIM

SIM interface

Input DC voltage at SIM interface pin

-0.30

3.60 V ERS

External reset signal

Input DC voltage at RESET_N external reset pin

-0.15

2.10 V POS

Power-on signal

Input DC voltage at PWR_ON power-on pin

-0.30

5.50

ADC

Antenna detection pin

Input DC voltage at ANT_DET pin

-0.15

3.00 V P_ANT

Antenna power

Input in-band RF power at ANT pin

-10

dBm

Rho_ANT

Antenna ruggedness

Output RF load mismatch ruggedness at ANT pin

15:1

VSWR

Tstg

Storage temperature

-40

°C

Parameter

Module

Max.

Unit

Remarks

ESD sensitivity for all pins except ANT pin

All

1000

Human Body Model according to JESD22-A114F

ESD sensitivity for ANT pin

All

1000

Human Body Model according to JESD22-A114F

ESD immunity for ANT pin

SARA-U201

4000

Contact Discharge according to IEC 61000-4-2

8000

Air Discharge according to IEC 61000-4-2

All except SARA-U201

2000

Contact Discharge according to IEC 61000-4-2

4000

Air Discharge according to IEC 61000-4-2

4 Electrical specifications

Stressing the device above one or more of the ratings listed in the Absolute Maximum Rating

section may cause permanent damage. These are stress ratings only. Operating the module at these or at any conditions other than those specified in the Operating Conditions sections (section 4.2) of the specification should be avoided. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability.

Operating conditions ranges define those limits within which the functionality of the device is guaranteed. Electrical characteristics are defined according to verification on a representative number of samples or

according to simulation.

Where application information is given, it is advisory only and does not form part of the specification.

4.1 Absolute maximum rating

Limiting values given below are in accordance with the Absolute Maximum Rating System (IEC 134).

Table 7: Absolute maximum ratings

The product is not protected against overvoltage or reversed voltages. If necessary, voltage

spikes exceeding the power supply voltage specification, given in the table above, must be limited to values within the specified boundaries by using appropriate protection devices.

4.1.1 Maximum ESD

Table 8: Maximum ESD ratings

SARA-U2 modules are Electrostatic Sensitive Devices (ESD) and require special precautions when

handling. See section 7.4 for ESD handling instructions.

UBX-13005287 - R19 Electrical specifications

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SARA-U2 series - Data Sheet

Symbol

Parameter

Module

Min.

Typ.

Max.

Units

Remarks

Topr

Operating temperature range

All

-40 +85

°C

Normal operating temperature range

SARA-U201

-20 +65

°C

See section 4.2.1.1

SARA-U260, SARA-U270, SARA-U280

-20 +55

°C

See section 4.2.1.1

Extended operating temperature range

All

-40 -20

°C

Extended operating temperature range 1

See section 4.2.1.2

SARA-U201

+65 +85

°C

Extended operating temperature range 2 See section 4.2.1.3

SARA-U260, SARA-U270, SARA-U280

+55 +85

°C

Extended operating temperature range 2

See section 4.2.1.3

4.2 Operating conditions

Unless otherwise indicated, all operating condition specifications assume an ambient temperature of

+25 °C.

Operation beyond the operating conditions is not recommended and extended exposure

beyond them may affect device reliability.

4.2.1 Operating temperature range

Table 9: Environmental conditions

4.2.1.1 Normal operating temperature range

The cellular module is fully functional and meets the 3GPP specification across the specified temperature range.

4.2.1.2 Extended operating temperature range 1

The cellular module is fully functional across the specified temperature range. Occasional deviations from the 3GPP specification may occur.

4.2.1.3 Extended operating temperature range 2

The cellular module is functional across the specified temperature range. Occasional deviations from the 3GPP specification may occur. Thermal protection including automatic shutdown is implemented for protection against overheating. Thermal protection is disabled for emergency calls. For more details, see the u-blox AT Commands Manual [4], +USTS AT command).

UBX-13005287 - R19 Electrical specifications

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Symbol

Parameter

Min.

Typ.

Max.

Unit

VCC

Module supply normal operating input voltage22

3.30

3.80

4.40 V

Module supply extended operating input voltage23

3.10 4.50 V V_BCKP

RTC supply input voltage

1.00

1.80

1.90

I_BCKP

RTC supply average current consumption, at V_BCKP = 1.8 V

2.00 µA

Symbol

Parameter

Min.

Typ.

Max.

Unit

VSIM

SIM supply output voltage

1.76

1.80

1.83 V 2.84

2.90

2.94 V V_BCKP

RTC supply output voltage

1.71

1.80

1.89 V I_BCKP

RTC supply output current capability

V_INT

Digital I/O Interfaces supply output voltage

1.73

1.80

1.87

V_INT_RIPPLE

Digital I/O Interfaces supply output peak-to-peak voltage ripple during active or connected mode

Digital I/O Interfaces supply output peak-to-peak voltage ripple during low power idle mode with power saving enabled by AT+UPSV command

I_INT

Digital I/O Interfaces supply output current capability

4.2.2 Supply/Power pins

Table 10: Input characteristics of the Supply/Power pins

SARA-U2 series - Data Sheet

Table 11: Output characteristics of the Supply/Power pins

Input voltage at VCC must be above the normal operating range minimum limit to switch on the module.

Occasional deviations from the 3GPP specifications may occur. Ensure that input voltage at VCC never drops below the extended operating range minimum limit during module operation: the module may switch off when the VCC voltage value drops below the extended operating range minimum limit.

UBX-13005287 - R19 Electrical specifications

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Mode

Condition

Band

Module

Min

Typ24

Max25

Unit

Power Off Mode

Averaged current, module switched off

SARA-U201

55 µA

SARA-U260, SARA-U270, SARA-U280

65 µA

Idle-Mode (Power Saving enabled by AT+UPSV, module in low power idle-mode, equivalent to +CFUN=0)

Averaged current over a 100 ms period, USB interface disconnected

All 0.5 mA

Averaged current over a 100 ms period, USB interface connected and suspended

All 0.9 mA

2G Cyclic Idle/Active-Mode (Power Saving enabled by AT+UPSV, Module registered with network)

Averaged current over a 10 minute period, DRX = 926, +UPSV=2 or 3, USB disconnected

All

All 0.9 mA

Averaged current over a 10 minute period, DRX = 527, +UPSV=1, USB disconnected

All

All 1.2 mA

Averaged current over a 10 minute period, DRX = 527, +UPSV=1, USB suspended

All

All 1.6 mA

2G Active-Mode (Power Saving disabled by AT+UPSV=0, Module registered with network)

Averaged current over a 10 minute period, DRX = 527, USB disconnected

All

All 14.7 mA

Averaged current over a 10 minute period, DRX = 527, USB connected and not suspended

All

All 34.3 mA

GSM Connected Mode (Tx / Rx call enabled)

Peak current28 during a 1-slot Tx burst Maximum Tx power

850, 900

All 1.55

1.90

Averaged current over a 10 second period, 1 Tx + 1 Rx slot, Minimum Tx power

All

SARA-U201, SARA-U260, SARA-U270

45 mA

Averaged current over a 10 second period, 1 Tx + 1 Rx slot, Maximum Tx power

850, 900

SARA-U201

240 mA

SARA-U260, SARA-U270

210 mA 1800, 1900

SARA-U201

160 mA

SARA-U260, SARA-U270

135 mA

GPRS Connected Mode (Tx / Rx call enabled)

Averaged current over a 10 second period, 4 Tx + 1 Rx slots, Maximum Tx power29

850, 900

SARA-U201

600 mA

SARA-U260, SARA-U270

560 mA 1800, 1900

SARA-U201

400 mA

SARA-U260, SARA-U270

350 mA

EDGE Connected Mode (Tx / Rx call enabled)

Averaged current over a 10 second period, 4 Tx + 1 Rx slots, Maximum Tx power29

850, 900

SARA-U201

470 mA

1800, 1900

SARA-U201

490 mA

4.2.3 Current consumption

SARA-U2 series - Data Sheet

Typical values with a matched antenna

Maximum values with a mismatched antenna

Module is registered with the network, with a paging period of 2.12 s (2G network DRX setting = 9), with none neighbour cell.

Module is registered with the network, with a paging period of 1.18 s (2G network DRX setting = 5), with 16 neighbour cells.

It is recommended to use this figure to dimension maximum current capability of power supply.

Condition for GPRS and EDGE multi-slot output power: Multi-Slot Power Reduction profile 2 (+UDCONF=40 AT command default value).

UBX-13005287 - R19 Electrical specifications

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SARA-U2 series - Data Sheet

Mode

Condition

Band

Module

Min

Typ24

Max25

Unit

3G Cyclic Idle/Active-Mode (Power Saving enabled by AT+UPSV, Module registered with network)

Averaged current over a 10 minute period, DRX = 930, +UPSV=2 or 3, USB disconnected

All

All 0.9 mA

Averaged current over a 10 minute period, DRX = 731, +UPSV=1, USB disconnected

All

All 1.3 mA

Averaged current over a 10 minute period, DRX = 731, +UPSV=1, USB suspended

All

All 1.7 mA

3G Active-Mode (Power Saving disabled by AT+UPSV=0, Module registered with network)

Averaged current over a 10 minute period, DRX = 731, USB disconnected

All

All 14.1 mA

Averaged current over a 10 minute period, DRX = 731, USB connected and not suspended

All

All 33.7 mA

UMTS Connected Mode (Tx / Rx call enabled)

Averaged current over a 10 second period,

12.2 kbit/s UL, 12.2 kbit/s DL Minimum Tx power

1, 2

All 120 mA

5, 8, 19

All 115 mA

Averaged current over a 10 second period,

12.2 kbit/s UL, 12.2 kbit/s DL Tx power = 0 dBm

1, 2

All 140 mA

5, 8, 19

All 135 mA

Averaged current over a 10 second period,

12.2 kbit/s UL, 12.2 kbit/s DL Tx power = 12 dBm

1, 2

All 200 mA

5, 8, 19

All 190 mA

Averaged current over a 10 second period,

12.2 kbit/s UL, 12.2 kbit/s DL Tx power = 18 dBm

1, 2

All 350 mA

5, 8, 19

All 325 mA

Averaged current over a 10 second period,

12.2 kbit/s UL, 12.2 kbit/s DL Maximum Tx power

1, 2

SARA-U201

510 mA

SARA-U260, SARA-U270, SARA-U280

625 mA

5, 8, 19

SARA-U201

430 mA

SARA-U260, SARA-U270, SARA-U280

565 mA

HSDPA Connected Mode (Tx / Rx call enabled)

Averaged current over a 10 second period, Maximum DL data rate (HSDPA) Maximum Tx power

1, 2

SARA-U201

550 mA

SARA-U260, SARA-U270, SARA-U280

680 mA

5, 8, 19

SARA-U201

500 mA

SARA-U260, SARA-U270, SARA-U280

595 mA

HSUPA or HSPA Connected Mode (Tx / Rx call enabled)

Averaged current over a 10 second period, Maximum UL data rate (HSUPA) or Maximum both UL/DL data rate (HSPA) Maximum Tx power

1, 2

SARA-U201

425 mA

SARA-U260, SARA-U270, SARA-U280

580 mA

5, 8, 19

SARA-U201

390 mA

SARA-U260, SARA-U270, SARA-U280

510 mA

Table 12: VCC current consumption

Module is registered with the network, with a paging period of 5.12 s (3G network DRX setting = 9).

Module is registered with the network, with a paging period of 1.28 s (3G network DRX setting = 7).

UBX-13005287 - R19 Electrical specifications

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SARA-U2 series - Data Sheet

Parameter

Min.

Max.

Unit

Remarks

Frequency range GSM 850

Uplink

824

849

MHz

Module transmit

Downlink

869

894

MHz

Module receive

Frequency range E-GSM 900

Uplink

880

915

MHz

Module transmit

Downlink

925

960

MHz

Module receive

Frequency range DCS 1800

Uplink

1710

1785

MHz

Module transmit

Downlink

1805

1880

MHz

Module receive

Frequency range PCS 1900

Uplink

1850

1910

MHz

Module transmit

Downlink

1930

1990

MHz

Module receive

Frequency range UMTS Band 19 (800 MHz)

Uplink

830

845

MHz

Module transmit

Downlink

875

890

MHz

Module receive

Frequency range UMTS Band 5 (850 MHz)

Uplink

824

849

MHz

Module transmit

Downlink

869

894

MHz

Module receive

Frequency range UMTS Band 8 (900 MHz)

Uplink

880

915

MHz

Module transmit

Downlink

925

960

MHz

Module receive

Frequency range UMTS Band 2 (1900 MHz)

Uplink

1850

1910

MHz

Module transmit

Downlink

1930

1990

MHz

Module receive

Frequency range UMTS Band 1 (2100 MHz)

Uplink

1920

1980

MHz

Module transmit

Downlink

2110

2170

MHz

Module receive

Parameter

Min.

Typ.

Max.

Unit

Remarks

Receiver input sensitivity GSM 850 / E-GSM 900

-109.0

dBm

Downlink RF level @ BER Class II < 2.4%

Receiver input sensitivity DCS 1800 / PCS 1900

-109.0

dBm

Downlink RF level @ BER Class II < 2.4%

Receiver input sensitivity UMTS Band 19 (850 MHz)

-111.0

dBm

Downlink RF level for RMC @ BER < 0.1%

Receiver input sensitivity UMTS Band 5 (850 MHz)

-111.0

dBm

Downlink RF level for RMC @ BER < 0.1%

Receiver input sensitivity UMTS Band 8 (900 MHz)

-110.0

dBm

Downlink RF level for RMC @ BER < 0.1%

Receiver input sensitivity UMTS Band 2 (1900 MHz)

-110.0

dBm

Downlink RF level for RMC @ BER < 0.1%

Receiver input sensitivity UMTS Band 1 (2100 MHz)

-110.0

dBm

Downlink RF level for RMC @ BER < 0.1% Condition: 50  source

4.2.4 RF characteristics

The 3G and 2G bands supported by each SARA-U2 series module are defined in Table 2, while the following Table 13 lists the Transmitting and Receiving frequencies for each 3G and 2G band, according to 3GPP TS

34.121-1 [13] and 3GPP TS 51.010-1 [14].

Table 13: Operating RF frequency bands

SARA-U2 series modules include a UE Power Class 3 3G transmitter, a GMSK Power Class 4 transmitter for GSM/E-GSM bands, and a GMSK Power Class 1 transmitter for DCS/PCS bands (see Table 2).

SARA-U201 modules also include an 8-PSK Power Class E2 transmitter for all 2G bands (see Table 2). Output power and characteristics are compliant with 3GPP TS 34.121-1 [13] and 3GPP TS 51.010-1 [14]. SARA-U2 series modules 3G and 2G receiver characteristics are compliant to 3GPP TS 34.121-1 [13] and 3GPP

TS 51.010-1 [14], with conducted receiver sensitivity performance specified in Table 14.

Table 14: Receiver sensitivity performance

UBX-13005287 - R19 Electrical specifications

Page 28 of 57

Pin Name

Parameter

Min.

Typ.

Max.

Unit

Remarks

ANT_DET

Output DC current pulse value

10 µA

Output DC current pulse time length

128 µs

Pin Name

Parameter

Min.

Typ.

Max.

Unit

Remarks

PWR_ON

Internal supply for Power-On Input Signal

1.71

1.80

1.89 V RTC supply (V_BCKP) L-level input

-0.30

0.65 V High input impedance (no internal pull-up)

H-level input

1.50 4.40 V High input impedance (no internal pull-up)

L-level input current

-6 µA

PWR_ON low time to switch on the module

50 80

µs PWR_ON low time to switch off the module

1000

Pin Name

Parameter

Min.

Typ.

Max.

Unit

Remarks

RESET_N

Internal supply for External Reset Input Signal

1.71

1.80

1.89 V RTC supply (V_BCKP) L-level input

-0.30

0.51 V

H-level input

1.32 2.01 V

L-level input current

-180 µA

Pull-up resistance

k

Internal pull-up to RTC supply (V_BCKP)

RESET_N low time to perform a proper reset

4.2.5 ANT_DET pin

Table 15: ANT_DET pin characteristics

4.2.6 PWR_ON pin

SARA-U2 series - Data Sheet

Table 16: PWR_ON pin characteristics (POS domain)

4.2.7 RESET_N pin

Table 17: RESET_N pin characteristics (ERS domain)

UBX-13005287 - R19 Electrical specifications

Page 29 of 57

SARA-U2 series - Data Sheet

Parameter

Min.

Typ.

Max.

Unit

Remarks

Low-level input

0.00 0.35 V VSIM = 1.80 V

0.00 0.57 V VSIM = 2.90 V

High-level input

1.29 3.30 V VSIM = 1.80 V

2.07 3.30 V VSIM = 2.90 V

Low-level output

0.00

0.35 V VSIM = 1.80 V, Max value at IOL = +1.0 mA

0.00

0.35 V VSIM = 2.90 V, Max value at IOL = +1.0 mA

High-level output

1.26

1.80 V

VSIM = 1.80 V, Min value at IOH = -1.0 mA

2.03

2.90 V

VSIM = 2.90 V, Min value at IOH = -1.0 mA

Input/Output leakage current

0.7

µA

0.2V < VIN < 3.3V

Internal pull-up resistor on SIM_IO to VSIM

4.7

k Clock frequency on SIM_CLK

3.25 MHz

4.2.8 (U)SIM pins

The SIM pins are a dedicated interface to the external SIM card/chip. The electrical characteristics fulfill the regulatory specification requirements. The values in Table 18 are for information only.

Table 18: (U)SIM pin characteristics (SIM domain)

UBX-13005287 - R19 Electrical specifications

Page 30 of 57

Parameter

Min.

Typ.

Max.

Unit

Remarks

Internal supply for GDI domain

1.73

1.80

1.87 V Generic Digital Interfaces supply (V_INT)

Input characteristic: L-level input

-0.20

0.35 V

Input characteristic: H-level input

1.31 1.93 V

Output characteristics: L-level output

0.00

0.20 V Max value at IOL = +0.1 mA for driver class A

0.00

0.35 V Max value at IOL = +6.0 mA for driver class A

0.00

0.20 V Max value at IOL = +0.1 mA for driver class B

0.00

0.35 V Max value at IOL = +4.0 mA for driver class B

0.00

0.20 V Max value at IOL = +0.1 mA for driver class C

0.00

0.35 V Max value at IOL = +2.0 mA for driver class C

0.00

0.45 V Max value at IOL = +2.0 mA for driver class C_0

0.00

0.20 V Max value at IOL = +0.1mA for driver class D

0.00

0.35 V Max value at IOL = +1.0 mA for driver class D

0.00

0.20 V Max value at IOL = +0.1 mA for driver class E

Output characteristics: H-level output

1.45

1.80 V

Min value at IOH = -6.0 mA for driver class A

1.60

1.80 V

Min value at IOH = -0.1 mA for driver class A

1.45

1.80 V

Min value at IOH = -4.0 mA for driver class B

1.60

1.80 V

Min value at IOH = -0.1 mA for driver class B

1.45

1.80 V

Min value at IOH = -2.0 mA for driver class C

1.60

1.80 V

Min value at IOH = -0.1 mA for driver class C

1.35

1.80 V

Min value at IOH = -2.0 mA for driver class C_0

1.45

1.80 V

Min value at IOH = -1.0 mA for driver class D

1.60

1.80 V

Min value at IOH = -0.1 mA for driver class D

1.60

1.80 V

Min value at IOH = -0.1 mA for driver class E

Input/Output leakage current

0.7

µA

0.2 V < VIN < 1.93 V

Pull-up input current

-240

µA

PU Class a

-150

µA

PU Class b

-125

µA

PU Class c

Pull-down input current

+200

µA

PD Class a

+150

µA

PD Class b

+45

µA

PD Class c

4.2.9 Generic Digital Interfaces pins

SARA-U2 series - Data Sheet

Table 19: Generic Digital Interfaces pin characteristics (GDI domain)

4.2.9.1 AC characteristics of digital audio interfaces pins

The 4-wire I2S digital audio interface can be configured in 4 different modes:

 Normal I  Normal I

S mode – Master mode

S mode – Slave mode

 PCM mode – Master mode  PCM mode – Slave mode

AC characteristics of the 4 different modes of the I2S digital audio interface are reported as follows.

UBX-13005287 - R19 Electrical specifications

Page 31 of 57

SARA-U2 series - Data Sheet

CLK

(Output)

TXD / WA

(Output)

RXD

(Input)

CLK

(Output)

TXD / WA

(Output)

RXD

(Input)

Parameter

Description

Min.

Typ.

Max.

Unit

Remarks

I2S clock period

3.902

3.906

µs

<I2S_sample_rate>=0

2.830

2.834

µs

<I2S_sample_rate>=1

2.600

2.604

µs

<I2S_sample_rate>=2

1.949

1.953

µs

<I2S_sample_rate>=3

1.413

1.417

µs

<I2S_sample_rate>=4

1.298

1.302

µs

<I2S_sample_rate>=5

0.973

0.977

µs

<I2S_sample_rate>=6

0.705

0.709

µs

<I2S_sample_rate>=7

0.647

0.651

µs

<I2S_sample_rate>=8

1/T1

I2S clock frequency

256.0

256.3

kHz

<I2S_sample_rate>=0

352.8

353.3

kHz

<I2S_sample_rate>=1

384.0

384.6

kHz

<I2S_sample_rate>=2

512.0

513.1

kHz

<I2S_sample_rate>=3

705.6

707.6

kHz

<I2S_sample_rate>=4

768.0

770.4

kHz

<I2S_sample_rate>=5

1024

1028

kHz

<I2S_sample_rate>=6

1411

1419

kHz

<I2S_sample_rate>=7

1536

1545

kHz

<I2S_sample_rate>=8

Normal I2S mode – Master mode

Figure 5: AC characteristics of digital audio interface in Normal I2S mode (<I2S_mode> = 2,4,6,8,10,12) and Master mode enabled

Figure 6: AC characteristics of digital audio interface in Normal I2S mode (<I2S_mode> = 3,5,7,9,11,13) and Master mode enabled

UBX-13005287 - R19 Electrical specifications

Page 32 of 57

SARA-U2 series - Data Sheet

Parameter

Description

Min.

Typ.

Max.

Unit

Remarks

I2S clock high time

1.933

1.953

µs

<I2S_sample_rate>=0

1.397

1.417

µs

<I2S_sample_rate>=1

1.282

1.302

µs

<I2S_sample_rate>=2

0.957

0.977

µs

<I2S_sample_rate>=3

0.689

0.709

µs

<I2S_sample_rate>=4

0.631

0.651

µs

<I2S_sample_rate>=5

0.468

0.488

µs

<I2S_sample_rate>=6

0.334

0.354

µs

<I2S_sample_rate>=7

0.306

0.326

µs

<I2S_sample_rate>=8

I2S clock low time

1.933

1.953

µs

<I2S_sample_rate>=0

1.397

1.417

µs

<I2S_sample_rate>=1

1.282

1.302

µs

<I2S_sample_rate>=2

0.957

0.977

µs

<I2S_sample_rate>=3

0.689

0.709

µs

<I2S_sample_rate>=4

0.631

0.651

µs

<I2S_sample_rate>=5

0.468

0.488

µs

<I2S_sample_rate>=6

0.334

0.354

µs

<I2S_sample_rate>=7

0.306

0.326

µs

<I2S_sample_rate>=8

I2S word alignment period

125.0

µs

<I2S_sample_rate>=0

90.70

µs

<I2S_sample_rate>=1

83.33

µs

<I2S_sample_rate>=2

62.50

µs

<I2S_sample_rate>=3

45.35

µs

<I2S_sample_rate>=4

41.67

µs

<I2S_sample_rate>=5

31.25

µs

<I2S_sample_rate>=6

22.68

µs

<I2S_sample_rate>=7

20.83

µs

<I2S_sample_rate>=8

I2S word alignment frequency

8.000

kHz

<I2S_sample_rate>=0

11.03

kHz

<I2S_sample_rate>=1

12.00

kHz

<I2S_sample_rate>=2

16.00

kHz

<I2S_sample_rate>=3

22.05

kHz

<I2S_sample_rate>=4

24.00

kHz

<I2S_sample_rate>=5

32.00

kHz

<I2S_sample_rate>=6

44.10

kHz

<I2S_sample_rate>=7

48.00

kHz

<I2S_sample_rate>=8

I2S TXD invalid before I2S CLK high end (before shifting edge of I2S CLK)

<I2S_mode> = 2,4,6,8,10,12

I2S TXD invalid before I2S CLK low end (before shifting edge of I2S CLK)

<I2S_mode> = 3,5,7,9,11,13

I2S TXD valid after I2S CLK low begin (after shifting edge of I2S CLK)

<I2S_mode> = 2,4,6,8,10,12

I2S TXD valid after I2S CLK high begin (after shifting edge of I2S CLK)

<I2S_mode> = 3,5,7,9,11,13

I2S RXD setup time before I2S CLK low end (before latching edge of I2S CLK)

<I2S_mode> = 2,4,6,8,10,12

I2S RXD setup time before I2S CLK high end (before latching edge of I2S CLK)

<I2S_mode> = 3,5,7,9,11,13

I2S RXD hold time after I2S CLK high begin (after latching edge of I2S CLK)

<I2S_mode> = 2,4,6,8,10,12

I2S RXD hold time after I2S CLK low begin (after latching edge of I2S CLK)

<I2S_mode> = 3,5,7,9,11,13

Table 20: AC characteristics of digital audio interface in Normal I2S mode and Master mode enabled

UBX-13005287 - R19 Electrical specifications

Page 33 of 57

SARA-U2 series - Data Sheet

CLK

(Input)

TXD

(Output)

RXD / WA

(Input)

CLK

(Input)

TXD

(Output)

RXD / WA

(Input)

Parameter

Description

Min.

Typ.

Max.

Unit

Remarks

I2S clock period

3.906

µs

<I2S_sample_rate>=0

2.834

µs

<I2S_sample_rate>=1

2.604

µs

<I2S_sample_rate>=2

1.953

µs

<I2S_sample_rate>=3

1.417

µs

<I2S_sample_rate>=4

1.302

µs

<I2S_sample_rate>=5

0.977

µs

<I2S_sample_rate>=6

0.709

µs

<I2S_sample_rate>=7

0.651

µs

<I2S_sample_rate>=8

1/T1

I2S clock frequency

256.0

kHz

<I2S_sample_rate>=0

352.8

kHz

<I2S_sample_rate>=1

384.0

kHz

<I2S_sample_rate>=2

512.0

kHz

<I2S_sample_rate>=3

705.6

kHz

<I2S_sample_rate>=4

768.0

kHz

<I2S_sample_rate>=5

1024

kHz

<I2S_sample_rate>=6

1411

kHz

<I2S_sample_rate>=7

1536

kHz

<I2S_sample_rate>=8

Normal I2S mode – Slave mode

Figure 7: AC characteristics of digital audio interface in Normal I2S mode (<I2S_mode> = 2,4,6,8,10,12) and Slave mode enabled

Figure 8: AC characteristics of digital audio interface in Normal I2S mode (<I2S_mode> = 3,5,7,9,11,13) and Slave mode enabled

UBX-13005287 - R19 Electrical specifications

Page 34 of 57

SARA-U2 series - Data Sheet

Parameter

Description

Min.

Typ.

Max.

Unit

Remarks

I2S word alignment period

125.0

µs

<I2S_sample_rate>=0

90.70

µs

<I2S_sample_rate>=1

83.33

µs

<I2S_sample_rate>=2

62.50

µs

<I2S_sample_rate>=3

45.35

µs

<I2S_sample_rate>=4

41.67

µs

<I2S_sample_rate>=5

31.25

µs

<I2S_sample_rate>=6

22.68

µs

<I2S_sample_rate>=7

20.83

µs

<I2S_sample_rate>=8

I2S word alignment frequency

8.000

kHz

<I2S_sample_rate>=0

11.03

kHz

<I2S_sample_rate>=1

12.00

kHz

<I2S_sample_rate>=2

16.00

kHz

<I2S_sample_rate>=3

22.05

kHz

<I2S_sample_rate>=4

24.00

kHz

<I2S_sample_rate>=5

32.00

kHz

<I2S_sample_rate>=6

44.10

kHz

<I2S_sample_rate>=7

48.00

kHz

<I2S_sample_rate>=8

I2S TXD invalid before I2S CLK falling edge (before shifting edge of I2S CLK)

<I2S_mode> = 2,4,6,8,10,12

I2S TXD invalid before I2S CLK rising edge (before shifting edge of I2S CLK)

<I2S_mode> = 3,5,7,9,11,13

I2S TXD valid after I2S CLK falling edge (after shifting edge of I2S CLK)

<I2S_mode> = 2,4,6,8,10,12

I2S TXD valid after I2S CLK rising edge (after shifting edge of I2S CLK)

<I2S_mode> = 3,5,7,9,11,13

I2S RXD setup time before I2S CLK rising edge (before latching edge of I2S CLK)

<I2S_mode> = 2,4,6,8,10,12

I2S RXD setup time before I2S CLK falling edge (before latching edge of I2S CLK)

<I2S_mode> = 3,5,7,9,11,13

I2S RXD hold time after I2S CLK rising edge (after latching edge of I2S CLK)

<I2S_mode> = 2,4,6,8,10,12

I2S RXD hold time after I2S CLK falling edge (after latching edge of I2S CLK)

<I2S_mode> = 3,5,7,9,11,13

Table 21: AC characteristics of digital audio interface in Normal I2S mode and Slave mode enabled

UBX-13005287 - R19 Electrical specifications

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SARA-U2 series - Data Sheet

T4 T5

T6 T7

LSB

MSB

(Output)

CLK

(Output)

TXD

(Output)

RXD

(Input)

T4 T5

T6 T7

(Output)

CLK

(Output)

LSB

MSB

LSB

TXD

(Output)

RXD

(Input)

Parameter

Description

Min.

Typ.

Max.

Unit

Remarks

I2S clock period

6.940

6.944

µs

<I2S_mode>=0, <I2S_sample_rate>=0

7.349

7.353

µs

<I2S_mode>=1, <I2S_sample_rate>=0

5.035

5.039

µs

<I2S_mode>=0, <I2S_sample_rate>=1

5.331

5.335

µs

<I2S_mode>=1, <I2S_sample_rate>=1

4.626

4.630

µs

<I2S_mode>=0, <I2S_sample_rate>=2

4.898

4.902

µs

<I2S_mode>=1, <I2S_sample_rate>=2

3.468

3.472

µs

<I2S_mode>=0, <I2S_sample_rate>=3

3.672

3.676

µs

<I2S_mode>=1, <I2S_sample_rate>=3

2.516

2.520

µs

<I2S_mode>=0, <I2S_sample_rate>=4

2.664

2.668

µs

<I2S_mode>=1, <I2S_sample_rate>=4

2.311

2.315

µs

<I2S_mode>=0, <I2S_sample_rate>=5

2.447

2.451

µs

<I2S_mode>=1, <I2S_sample_rate>=5

1.732

1.736

µs

<I2S_mode>=0, <I2S_sample_rate>=6

1.834

1.838

µs

<I2S_mode>=1, <I2S_sample_rate>=6

1.256

1.260

µs

<I2S_mode>=0, <I2S_sample_rate>=7

1.330

1.334

µs

<I2S_mode>=1, <I2S_sample_rate>=7

1.153

1.157

µs

<I2S_mode>=0, <I2S_sample_rate>=8

PCM mode – Master mode

Figure 9: AC characteristics of digital audio interface in PCM mode (<I2S_mode> = 0) and Master mode enabled

Figure 10: AC characteristics of digital audio interface in PCM mode (<I2S_mode> = 1) and Master mode enabled

UBX-13005287 - R19 Electrical specifications

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SARA-U2 series - Data Sheet

Parameter

Description

Min.

Typ.

Max.

Unit

Remarks

1.221

1.225

µs

<I2S_mode>=1, <I2S_sample_rate>=8

1/T1

I2S clock frequency

144.0

144.1

kHz

<I2S_mode>=0, <I2S_sample_rate>=0

136.0

136.1

kHz

<I2S_mode>=1, <I2S_sample_rate>=0

198.5

198.6

kHz

<I2S_mode>=0, <I2S_sample_rate>=1

187.4

187.6

kHz

<I2S_mode>=1, <I2S_sample_rate>=1

216.0

216.2

kHz

<I2S_mode>=0, <I2S_sample_rate>=2

204.0

204.2

kHz

<I2S_mode>=1, <I2S_sample_rate>=2

288.0

288.3

kHz

<I2S_mode>=0, <I2S_sample_rate>=3

272.0

272.3

kHz

<I2S_mode>=1, <I2S_sample_rate>=3

396.9

397.5

kHz

<I2S_mode>=0, <I2S_sample_rate>=4

374.9

375.4

kHz

<I2S_mode>=1, <I2S_sample_rate>=4

432.0

432.7

kHz

<I2S_mode>=0, <I2S_sample_rate>=5

408.0

408.7

kHz

<I2S_mode>=1, <I2S_sample_rate>=5

576.0

577.3

kHz

<I2S_mode>=0, <I2S_sample_rate>=6

544.0

545.2

kHz

<I2S_mode>=1, <I2S_sample_rate>=6

793.8

796.3

kHz

<I2S_mode>=0, <I2S_sample_rate>=7

749.7

752.0

kHz

<I2S_mode>=1, <I2S_sample_rate>=7

864.0

867.0

kHz

<I2S_mode>=0, <I2S_sample_rate>=8

816.0

818.7

kHz

<I2S_mode>=1, <I2S_sample_rate>=8

I2S clock low time

3.452

3.472

µs

<I2S_mode>=0, <I2S_sample_rate>=0

3.656

3.676

µs

<I2S_mode>=1, <I2S_sample_rate>=0

2.500

2.520

µs

<I2S_mode>=0, <I2S_sample_rate>=1

2.648

2.668

µs

<I2S_mode>=1, <I2S_sample_rate>=1

2.295

2.315

µs

<I2S_mode>=0, <I2S_sample_rate>=2

2.431

2.451

µs

<I2S_mode>=1, <I2S_sample_rate>=2

1.716

1.736

µs

<I2S_mode>=0, <I2S_sample_rate>=3

1.818

1.838

µs

<I2S_mode>=1, <I2S_sample_rate>=3

1.240

1.260

µs

<I2S_mode>=0, <I2S_sample_rate>=4

1.314

1.334

µs

<I2S_mode>=1, <I2S_sample_rate>=4

1.137

1.157

µs

<I2S_mode>=0, <I2S_sample_rate>=5

1.205

1.225

µs

<I2S_mode>=1, <I2S_sample_rate>=5

0.848

0.868

µs

<I2S_mode>=0, <I2S_sample_rate>=6

0.899

0.919

µs

<I2S_mode>=1, <I2S_sample_rate>=6

0.610

0.630

µs

<I2S_mode>=0, <I2S_sample_rate>=7

0.647

0.667

µs

<I2S_mode>=1, <I2S_sample_rate>=7

0.559

0.579

µs

<I2S_mode>=0, <I2S_sample_rate>=8

0.593

0.613

µs

<I2S_mode>=1, <I2S_sample_rate>=8

I2S clock high time

3.452

3.472

µs

<I2S_mode>=0, <I2S_sample_rate>=0

3.656

3.676

µs

<I2S_mode>=1, <I2S_sample_rate>=0

2.500

2.520

µs

<I2S_mode>=0, <I2S_sample_rate>=1

2.648

2.668

µs

<I2S_mode>=1, <I2S_sample_rate>=1

2.295

2.315

µs

<I2S_mode>=0, <I2S_sample_rate>=2

2.431

2.451

µs

<I2S_mode>=1, <I2S_sample_rate>=2

1.716

1.736

µs

<I2S_mode>=0, <I2S_sample_rate>=3

1.818

1.838

µs

<I2S_mode>=1, <I2S_sample_rate>=3

1.240

1.260

µs

<I2S_mode>=0, <I2S_sample_rate>=4

1.314

1.334

µs

<I2S_mode>=1, <I2S_sample_rate>=4

1.137

1.157

µs

<I2S_mode>=0, <I2S_sample_rate>=5

1.205

1.225

µs

<I2S_mode>=1, <I2S_sample_rate>=5

0.848

0.868

µs

<I2S_mode>=0, <I2S_sample_rate>=6

0.899

0.919

µs

<I2S_mode>=1, <I2S_sample_rate>=6

0.610

0.630

µs

<I2S_mode>=0, <I2S_sample_rate>=7

UBX-13005287 - R19 Electrical specifications

Page 37 of 57

SARA-U2 series - Data Sheet

Parameter

Description

Min.

Typ.

Max.

Unit

Remarks

0.647

0.667

µs

<I2S_mode>=1, <I2S_sample_rate>=7

0.559

0.579

µs

<I2S_mode>=0, <I2S_sample_rate>=8

0.593

0.613

µs

<I2S_mode>=1, <I2S_sample_rate>=8

I2S word alignment period

125.0

µs

<I2S_sample_rate>=0

90.70

µs

<I2S_sample_rate>=1

83.33

µs

<I2S_sample_rate>=2

62.50

µs

<I2S_sample_rate>=3

45.35

µs

<I2S_sample_rate>=4

41.67

µs

<I2S_sample_rate>=5

31.25

µs

<I2S_sample_rate>=6

22.68

µs

<I2S_sample_rate>=7

20.83

µs

<I2S_sample_rate>=8

I2S word alignment frequency

8.000

kHz

<I2S_sample_rate>=0

11.03

kHz

<I2S_sample_rate>=1

12.00

kHz

<I2S_sample_rate>=2

16.00

kHz

<I2S_sample_rate>=3

22.05

kHz

<I2S_sample_rate>=4

24.00

kHz

<I2S_sample_rate>=5

32.00

kHz

<I2S_sample_rate>=6

44.10

kHz

<I2S_sample_rate>=7

48.00

kHz

<I2S_sample_rate>=8

I2S CLK high begin to I2S WA high begin

-24 32

<I2S_mode> = 0

I2S CLK low end to I2S WA high end

-24 32

<I2S_mode> = 0

I2S TXD invalid before I2S CLK low end

<I2S_mode> = 0

I2S TXD valid after I2S CLK high begin

<I2S_mode> = 0

I2S RXD setup time before I2S CLK high end

<I2S_mode> = 0

I2S RXD hold time after I2S CLK low begin

<I2S_mode> = 0

Table 22: AC characteristics of digital audio interface in PCM mode (<I2S_mode> = 0,1) and Master mode enabled

UBX-13005287 - R19 Electrical specifications

Page 38 of 57

SARA-U2 series - Data Sheet

T4 T5

T6 T7

LSB

MSB

(Input)

CLK

(Input)

TXD

(Output)

RXD

(Input)

T4 T5

T6 T7

LSB

MSB

LSB

TXD

(Output)

RXD

(Input)

CLK

(Input)

Parameter

Description

Min.

Typ.

Max.

Unit

Remarks

I2S clock period

6.944

µs

<I2S_mode>=0, <I2S_sample_rate>=0

7.353

µs

<I2S_mode>=1, <I2S_sample_rate>=0

5.039

µs

<I2S_mode>=0, <I2S_sample_rate>=1

5.335

µs

<I2S_mode>=1, <I2S_sample_rate>=1

4.630

µs

<I2S_mode>=0, <I2S_sample_rate>=2

4.902

µs

<I2S_mode>=1, <I2S_sample_rate>=2

3.472

µs

<I2S_mode>=0, <I2S_sample_rate>=3

3.676

µs

<I2S_mode>=1, <I2S_sample_rate>=3

2.520

µs

<I2S_mode>=0, <I2S_sample_rate>=4

2.668

µs

<I2S_mode>=1, <I2S_sample_rate>=4

2.315

µs

<I2S_mode>=0, <I2S_sample_rate>=5

2.451

µs

<I2S_mode>=1, <I2S_sample_rate>=5

1.736

µs

<I2S_mode>=0, <I2S_sample_rate>=6

1.838

µs

<I2S_mode>=1, <I2S_sample_rate>=6

1.260

µs

<I2S_mode>=0, <I2S_sample_rate>=7

1.334

µs

<I2S_mode>=1, <I2S_sample_rate>=7

1.157

µs

<I2S_mode>=0, <I2S_sample_rate>=8

1.225

µs

<I2S_mode>=1, <I2S_sample_rate>=8

PCM mode – Slave mode

Figure 11: AC characteristics of digital audio interface in PCM mode (<I2S_mode> = 0) and Slave mode enabled

Figure 12: AC characteristics of digital audio interface in PCM mode (<I2S_mode> = 1) and Slave mode enabled

UBX-13005287 - R19 Electrical specifications

Page 39 of 57

SARA-U2 series - Data Sheet

Parameter

Description

Min.

Typ.

Max.

Unit

Remarks

1/T1

I2S clock frequency

144.0

kHz

<I2S_mode>=0, <I2S_sample_rate>=0

136.0

kHz

<I2S_mode>=1, <I2S_sample_rate>=0

198.5

kHz

<I2S_mode>=0, <I2S_sample_rate>=1

187.4

kHz

<I2S_mode>=1, <I2S_sample_rate>=1

216.0

kHz

<I2S_mode>=0, <I2S_sample_rate>=2

204.0

kHz

<I2S_mode>=1, <I2S_sample_rate>=2

288.0

kHz

<I2S_mode>=0, <I2S_sample_rate>=3

272.0

kHz

<I2S_mode>=1, <I2S_sample_rate>=3

396.9

kHz

<I2S_mode>=0, <I2S_sample_rate>=4

374.9

kHz

<I2S_mode>=1, <I2S_sample_rate>=4

432.0

kHz

<I2S_mode>=0, <I2S_sample_rate>=5

408.0

kHz

<I2S_mode>=1, <I2S_sample_rate>=5

576.0

kHz

<I2S_mode>=0, <I2S_sample_rate>=6

544.0

kHz

<I2S_mode>=1, <I2S_sample_rate>=6

793.8

kHz

<I2S_mode>=0, <I2S_sample_rate>=7

749.7

kHz

<I2S_mode>=1, <I2S_sample_rate>=7

864.0

kHz

<I2S_mode>=0, <I2S_sample_rate>=8

816.0

kHz

<I2S_mode>=1, <I2S_sample_rate>=8

I2S word alignment period

125.0

µs

<I2S_sample_rate>=0

90.70

µs

<I2S_sample_rate>=1

83.33

µs

<I2S_sample_rate>=2

62.50

µs

<I2S_sample_rate>=3

45.35

µs

<I2S_sample_rate>=4

41.67

µs

<I2S_sample_rate>=5

31.25

µs

<I2S_sample_rate>=6

22.68

µs

<I2S_sample_rate>=7

20.83

µs

<I2S_sample_rate>=8

I2S word alignment frequency

8.000

kHz

<I2S_sample_rate>=0

11.03

kHz

<I2S_sample_rate>=1

12.00

kHz

<I2S_sample_rate>=2

16.00

kHz

<I2S_sample_rate>=3

22.05

kHz

<I2S_sample_rate>=4

24.00

kHz

<I2S_sample_rate>=5

32.00

kHz

<I2S_sample_rate>=6

44.10

kHz

<I2S_sample_rate>=7

48.00

kHz

<I2S_sample_rate>=8

I2S WA high begin before I2S CLK low begin (latching edge of I2S CLK)

<I2S_mode>= 0

I2S WA low begin before I2S CLK low begin (latching edge of I2S CLK)

<I2S_mode>= 0

I2S TXD invalid before I2S CLK rising edge (shifting edge of I2S CLK)

<I2S_mode>= 0

I2S TXD valid after I2S CLK rising edge (shifting edge of I2S CLK)

<I2S_mode>= 0

I2S RXD setup time before I2S CLK falling edge (latching edge of I2S CLK)

<I2S_mode>= 0

I2S RXD hold time after I2S CLK falling edge (latching edge of I2S CLK)

<I2S_mode>= 0

Table 23: AC characteristics of digital audio interface in PCM mode (<I2S_mode> = 0,1) and Slave mode enabled

UBX-13005287 - R19 Electrical specifications

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CODEC_CLK

(Output)

Parameter

Description

Min.

Typ.

Max.

Unit

Remarks

CODEC_CLK clock period

38 ns

CODEC_CLK output set to 26 MHz

77 ns

CODEC_CLK output set to 13 MHz

1/T1

CODEC_CLK clock frequency

26 MHz

CODEC_CLK output set to 26 MHz

13 MHz

CODEC_CLK output set to 13 MHz

CODEC_CLK clock low time

CODEC_CLK output set to 26 MHz

CODEC_CLK output set to 13 MHz

CODEC_CLK clock high time

CODEC_CLK output set to 26 MHz

CODEC_CLK output set to 13 MHz

Parameter

Min.

Typ.

Max.

Unit

Remarks

USB detection voltage on pin VUSB_DET

4.40

5.00

5.25 V

Current sink at VUSB_DET

30 µA

High-speed squelch detection threshold (input differential signal amplitude)

100 150

High speed disconnect detection threshold (input differential signal amplitude)

525 625

mV High-speed data signaling input common mode voltage range

-50 500

High-speed idle output level

-10 10

High-speed data signaling output high level

360 440

mV High-speed data signaling output low level

-10 10

Chirp J level (output differential voltage)

700 1100

Chirp K level (output differential voltage)

-900 -500

4.2.9.2 AC characteristics of Digital Clock Output pin

Figure 13: AC characteristics of CODEC_CLK digital clock output

SARA-U2 series - Data Sheet

Table 24: AC characteristics of CODEC_CLK digital clock output

4.2.10 USB pins

USB data lines (USB_D+ and USB_D-) are compliant to the USB 2.0 high-speed specification. See the Universal Serial Bus Revision 2.0 specification [15] for detailed electrical characteristics. The values in Table 25 related to

USB 2.0 high-speed physical layer specifications are for information only.

Table 25: USB pins characteristics

UBX-13005287 - R19 Electrical specifications

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SARA-U2 series - Data Sheet

Parameter

Min.

Typ.

Max.

Unit

Remarks

Internal supply for DDC domain

1.73

1.80

1.87 V Generic Digital Interfaces supply (V_INT)

L-level input

-0.20

0.35 V

H-level input

1.31 1.93 V

L-level output

0.00

0.35 V Max value at IOL = +1.0 mA

Input/Output leakage current

0.7

µA

0.2 V < VIN < 1.93 V

Clock frequency on SCL

100 kHz

4.2.11 DDC (I

C) pins

DDC (I2C) lines (SCL and SDA) are compliant to the I2C-bus standard mode specification. See the I2C-bus Specifications [12] for detailed electrical characteristics. The values in Table 26 related to I2C-bus standard mode

specifications are for information only.

Table 26: DDC (I2C) pin characteristics (DDC domain)

UBX-13005287 - R19 Electrical specifications

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K M1 M1 M2

ANT pin

Pin 1

Indicator

G H1 J1

D D

Parameter

Description

Typical Tolerance

Module Height [mm]

26.0

(1023.6 mil)

+0.20/-0.20

(+7.9/-7.9 mil)

Module Width [mm]

16.0

(629.9 mil)

+0.20/-0.20

(+7.9/-7.9 mil)

Module Thickness [mm]

3.0

(118.4 mil)

+0.25/-0.15

(+9.8/-5.9 mil)

Horizontal Edge to Lateral Pin Pitch [mm]

2.0

(78.7 mil)

+0.20/-0.20

(+7.9/-7.9 mil)

Vertical Edge to Lateral Pin Pitch [mm]

2.5

(98.4 mil)

+0.20/-0.20

(+7.9/-7.9 mil)

Edge to Lateral Pin Pitch [mm]

1.05

(41.3 mil)

+0.20/-0.20

(+7.9/-7.9 mil)

Lateral Pin to Pin Pitch [mm]

1.1

(43.3 mil)

+0.02/-0.02

(+0.8/-0.8 mil)

Lateral Pin Height [mm]

0.8

(31.5 mil)

+0.02/-0.02

(+0.8/-0.8 mil)

Lateral Pin close to ANT Height [mm]

0.9

(35.4 mil)

+0.02/-0.02

(+0.8/-0.8 mil)

Lateral Pin Width [mm]

1.5

(59.1 mil)

+0.02/-0.02

(+0.8/-0.8 mil)

Lateral Pin to Pin Distance [mm]

0.3

(11.8 mil)

+0.02/-0.02

(+0.8/-0.8 mil)

Lateral Pin to Pin close to ANT Distance [mm]

0.2

(7.9 mil)

+0.02/-0.02

(+0.8/-0.8 mil)

Horizontal Edge to Central Pin Pitch [mm]

2.75

(108.3 mil)

+0.20/-0.20

(+7.9/-7.9 mil)

Vertical Edge to Central Pin Pitch [mm]

2.75

(108.3 mil)

+0.20/-0.20

(+7.9/-7.9 mil)

Central Pin to Pin Horizontal Pitch [mm]

1.8

(70.9 mil)

+0.02/-0.02

(+0.8/-0.8 mil)

Central Pin to Pin Horizontal Pitch [mm]

3.6

(141.7 mil)

+0.02/-0.02

(+0.8/-0.8 mil)

Central Pin to Pin Vertical Pitch [mm]

2.1

(82.7 mil)

+0.02/-0.02

(+0.8/-0.8 mil)

Central Pin Height and Width [mm]

1.1

(43.3 mil)

+0.02/-0.02

(+0.8/-0.8 mil)

Horizontal Edge to Pin 1 Indicator Pitch [mm]

0.9

(35.4 mil)

+0.20/-0.20

(+7.9/-7.9 mil)

Vertical Edge to Pin 1 Indicator Pitch [mm]

1.0

(39.4 mil)

+0.20/-0.20

(+7.9/-7.9 mil)

Pin 1 Indicator Height and Width [mm]

0.6

(23.6 mil)

+0.02/-0.02

(+0.8/-0.8 mil)

Weight

Module Weight [g]

< 3

5 Mechanical specifications

SARA-U2 series - Data Sheet

Figure 14: SARA-U2 series module dimensions (bottom and side views)

Table 27: SARA-U2 series module dimensions

Module height tolerance +/–0.20 mm may be exceeded close to the corners of the PCB due to the cutting

process: in the worst case, the height could be +0.40 mm longer than the typical value.

For information regarding Footprint and Paste Mask, see the SARA-G3 and SARA-U2 series System

Integration Manual [6].

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SARA-U2 series - Data Sheet

Products marked with this lead-free symbol on the product label comply with the "Directive 2002/95/EC of the European Parliament and the Council on the Restriction of Use of certain Hazardous Substances in Electrical and Electronic Equipment" RoHS).

SARA-U2 modules are RoHS compliant. No natural rubbers, hygroscopic materials, or materials containing asbestos are employed.

Certification Scheme

SARA-U201

ATEX

SARA-U260

SARA-U270

ATEX

SARA-U280

GCF (Global Certification Forum)

• • • •

PTCRB (PCS Type Certification Review Board)

• • •

•

CE (Conformité Européenne)

• • • •

FCC (United States Federal Communications Commission) FCC identification number

•

XPY1CGM5NNN

•

XPY1CGM5NNN

•

XPYSARAU260

•

XPYSARAU280

ISED (Innovation, Science and Economic Development, formerly known as IC - Industry Canada) ISED certification number

•

8595A-1CGM5NNN

•

8595A-1CGM5NNN

•

8595A-SARAU260

•

8595A-SARAU280

Anatel (Brazilian Certification)

• •

RCM (Australia Regulatory Compliance Mark)

• • • •

Giteki (Japan approval mark)

• •

KCC (Korean KC mark)

• •

NCC (Taiwanese National Communications Commission)

• •

CCC (China Compulsory Certification)

• • • •

SRRC (State Radio Regulation of China)

• • • •

AT&T (US Network Operator)

• • •

•

Rogers Canada (Canadian Network Operator)

• •

KT (Korean Network Operator)

•

SKT (Korean Network Operator)

•

NTT DoCoMo (Japanese Network Operator)

•

ATEX (ATmospheric EXplosives)

• •

6 Reliability tests and approvals

6.1 Reliability tests

Tests for product family qualifications are according to ISO 16750 “Road vehicles - Environmental conditions and testing for electrical and electronic equipment“, and appropriate standards.

6.2 Approvals

6.2.1 SARA-U2 series

Table 28 lists the SARA-U2 series main approvals.

Table 28: SARA-U2 series main certification approvals

For all the certificates of compliancy and for the complete list of approvals (including country and network

operator approvals) of the SARA-U2 series modules, see our website (http://www.u-blox.com/) or please contact the u-blox office or sales representative nearest you.

UBX-13005287 - R19 Reliability tests and approvals

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SARA-U2 series - Data Sheet

SARA-U270 ATEX

3.8 V

1.6 A (burst)

132 µF

9.8 µH

6.2.2 SARA-U201 ATEX and SARA-U270 ATEX

SARA-U201 ATEX and SARA-U270 ATEX modules are certified as components intended for use in potentially explosive atmospheres compliant to the following standards:

 IEC 60079-0: 2011  IEC 60079-11: 2011  IEC 60079-26: 2006

The certification numbers of the modules according to the ATEX directive 2014/34/EU are:

 SARA-U201 ATEX: SIQ 16 ATEX 298 U  SARA-U270 ATEX: SIQ 15 ATEX 017 U

The certification numbers of the modules according to the IECEx conformity assessment system are:

 SARA-U201 ATEX: IECEx SIQ 16.0006U  SARA-U270 ATEX: IECEx SIQ 15.0001U

According to the standards listed above, the modules are certified with the following marking:

 SARA-U201 ATEX: Ex II 1G, Ex ia IIB  SARA-U270 ATEX: Ex II 1G, Ex ia IIC/IIB

According to the marking stated above, the modules are certified as electrical equipment of:

 group ‘II’: intended for use in areas with explosive gas atmosphere other than mines susceptible to firedamp  category ‘1G’: intended for use in zone 0 hazardous areas, in which explosive atmospheres caused by

mixtures of air and gases, vapors or mists are present continuously, for long periods or frequently

 level of protection ‘ia’: intrinsically safe apparatus with very high level of protection, not capable of causing

ignition in normal operation and with the application of one countable fault or a combination of any two countable fault plus those non-countable faults which give the most onerous condition

 subdivision ‘IIB’: intended for use in areas where the nature of the explosive gas atmosphere is considered

dangerous based on the Maximum Experimental Safe Gap or the Minimum Ignition Current ratio of the explosive gas atmosphere in which the equipment may be installed (a typical gas is ethylene), so that the modules are also suitable for applications intended for use in subdivision IIA (a typical gas is propane)

 subdivision ‘IIC/IIB’: intended for use in areas where the nature of the explosive gas atmosphere is

considered very dangerous based on the Maximum Experimental Safe Gap or the Minimum Ignition Current ratio of the explosive gas atmosphere in which the equipment may be installed (a typical gas is hydrogen), so that the modules are also suitable for applications intended for use in subdivision IIB (typical gas is ethylene)

and subdivision IIA (a typical gas is propane) Section 4.2.1 defines the temperature range of use for SARA-U201 ATEX and SARA-U270 ATEX modules. The RF radiating profile of the modules is compliant to all the applicable 3GPP / ETSI standards, with a maximum

of 2 W RF pulse power (corresponding to 1.15 mJ RF pulse energy) and with a maximum average power of 250 mW according to the GSM/GPRS and WCDMA power class stated in Table 2. Section 9.1 describes the nameplate of SARA-U201 ATEX and SARA-U270 ATEX modules (see Figure 19 and Figure 20).

The following maximum input and equivalent parameters must be considered in sub-division IIC:

UBX-13005287 - R19 Reliability tests and approvals

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SARA-U2 series - Data Sheet

SARA-U201 ATEX

SARA-U270 ATEX

3.8

4.2

2.5 A (burst)

1.6 A (burst)

2.5 A (burst)

169 µF

132 µF

9.4 µH

9.8 µH

The following maximum input and equivalent parameters must be considered in sub-divisions IIB, IIA (two different configurations are allowed for SARA-U201 ATEX):

For more information about the integration of these modules in applications intended for use in

potentially explosive atmospheres, see the SARA-G3 / SARA-U2 Series System Integration Manual [6].

UBX-13005287 - R19 Reliability tests and approvals

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SARA-U2 series - Data Sheet

Parameter

Specification

Reel type

Delivery quantity

250

7 Product handling & soldering

7.1 Packaging

SARA-U2 modules are delivered as hermetically sealed, reeled tapes to enable efficient production, production lot set-up and tear-down. For more information about packaging, see the u-blox Package Information Guide [16].

Figure 15: Reeled SARA-U2 modules

7.1.1 Reels

SARA-U2 modules are deliverable in quantities of 250 pieces on a reel. SARA-U2 modules are delivered using reel type B2 as described in the u-blox Package Information Guide [16].

Table 29: Reel information for SARA-U2 modules

Quantities of less than 250 pieces are also available. Contact u-blox for more information.

UBX-13005287 - R19 Product handling & soldering

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SARA-U2 series - Data Sheet

Pin 1Sprocket hole

Feed direction

Parameter

Typical value

Tolerance

Unit

16.8

0.2

26.8

0.2

3.2

0.2

7.1.2 Tapes

Figure 16 shows the position and the orientation of SARA-U2 series modules as they are delivered on the tape, while Figure 17 and Table 30 specify the tape dimensions.

Figure 16: Orientation for SARA-U2 series modules on tape

Figure 17: SARA-U2 series tape dimensions (mm)

Table 30: SARA-U2 series tape dimensions (mm)

Note 1: 10 sprocket hole pitch cumulative tolerance ± 0.2 mm. Note 2: pocket position relative to sprocket hole is measured as true position of pocket, not pocket hole. Note 3: A

UBX-13005287 - R19 Product handling & soldering

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and B0 are calculated on a plane at a distance “R” above the bottom of the pocket.

SARA-U2 series - Data Sheet

7.2 Moisture Sensitivity Levels

SARA-U2 modules are Moisture Sensitive Devices (MSD) in accordance to the IPC/JEDEC

specification.

The Moisture Sensitivity Level (MSL) relates to the packaging and handling precautions required. SARA-U2 modules are rated at MSL level 4. For more information regarding moisture sensitivity levels, labeling, storage and drying, see the u-blox Package Information Guide [16].

For the MSL standard, see IPC/JEDEC J-STD-020 (can be downloaded from http://www.jedec.org/).

7.3 Reflow soldering

Reflow profiles are to be selected according to u-blox recommendations (see the SARA-G3 and SARA-U2 series System Integration Manual [6]).

Failure to observe these recommendations can result in severe damage to the device!

7.4 ESD precautions

SARA-U2 modules contain highly sensitive electronic circuitry and are Electrostatic Sensitive

Devices (ESD). Handling SARA-U2 modules without proper ESD protection may destroy or damage them permanently.

SARA-U2 modules are Electrostatic Sensitive Devices (ESD) and require special ESD precautions typically applied to ESD sensitive components.

Table 8 details the maximum ESD ratings of the SARA-U2 module. Proper ESD handling and packaging procedures must be applied throughout the processing, handling and

operation of any application that incorporates the SARA-U2 module. ESD precautions should be implemented on the application board where the module is mounted, as described in

the SARA-G3 and SARA-U2 series System Integration Manual [6].

Failure to observe these precautions can result in severe damage to the device!

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Interface

AT settings

Comments

UART interface

Enabled

Multiplexing mode can be enabled by AT+CMUX command providing following channels:

 Channel 0: control channel  Channel 1 – 5: AT commands / data connection  Channel 6: GNSS tunneling  Channel 7: SAP (SIM Access Profile)

AT+IPR=0

One-shot automatic baud rate detection enabled

AT+ICF=3,1

Frame format: 8 bits, no parity, 1 stop bit

Where AT+IPR=0 is the default value, the AT+ICF value in the profile is not

applied (AT+IPR=0 overrules the AT+ICF setting) and the one-shot automatic frame detection is active.

AT&K3

HW flow control enabled

AT&S1

DSR line set ON in data mode and set OFF in command mode

AT&D1

Upon an ON-to-OFF transition of DTR, the module enters online command state and issues an OK result code

AT&C1

Circuit 109 changes in accordance with the Carrier detect status; ON if the Carrier is detected, OFF otherwise

AUX UART interface

Disabled

AT command interface is disabled by default on the AUX UART physical interface, and it can be configured by AT+USIO command (see the u-blox AT Commands Manual [4])

USB interface

Enabled

7 USB CDCs (Communications Device Class) by default available:

AT&K3

HW flow control enabled

AT&S1

DSR line set ON in data mode and set OFF in command mode

AT&D1

Upon an ON-to-OFF transition of DTR, the module enters online command state and issues an OK result code

AT&C1

Circuit 109 changes in accordance with the Carrier detect status; ON if the Carrier is detected, OFF otherwise

Power saving

AT+UPSV=0

Disabled

Network registration

AT+COPS=0

Self network registration

8 Default settings

SARA-U2 series - Data Sheet

Table 31: SARA-U2 series default settings

See the u-blox AT Commands Manual [4] and the SARA-G3 and SARA-U2 series System Integration Manual [6] for information about further settings.

UBX-13005287 - R19 Default settings

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SARA-U2 series - Data Sheet

SARA-U2xx

xxx-xx

SARA-U201

03X-00

1304

SIQ 16 ATEX 298 U

IECEx SIQ 16.0006U

II 1G, Ex ia IIB

9 Labeling and ordering information

9.1 Product labeling

The labels of SARA-U2 series modules include important product information as described in this section.

Figure 18 illustrates the label of all the SARA-U2 series modules except for SARA-U201 ATEX and SARA-U270 ATEX, and includes: u-blox logo, production lot, Pb-free marking, product Type Number, IMEI number, and certification info and production country.

Figure 18: SARA-U2 series modules label

Figure 19 and Figure 20 illustrate the label of SARA-U201 ATEX and SARA-U270 ATEX modules respectively; these include: u-blox logo, production lot, Pb-free marking, product Type Number, IMEI number, ATEX marking with the IECEx and ATEX certificate numbers and category classification.

Figure 19: SARA-U201 ATEX modules label

UBX-13005287 - R19 Labeling and ordering information

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SARA-U2 series - Data Sheet

SIQ 15 ATEX 017 U

IECEx SIQ 15.0001U

II 1G Ex ia IIC/IIB

SARA-U270

00X-00

1304

Format

Structure Product Name

SARA-TGVV

Ordering Code

SARA-TGVV-TTQ

Type Number

SARA-TGVV-TTQ-XX

Code

Meaning

Example

PPP(P)

Form factor (3 or 4 digit, typically 4 for cellular products)

SARA

Platform (Technology and Generation)

 Dominant technology: G: GSM/GPRS; U: UMTS/HSPA; C: CDMA 1xRTT; N: NB-IoT;

R: LTE low data rate (Cat 1 and below); L: LTE high data rate (Cat 3 and above)

 Generation: 1…9

Variant function set based on the same platform [00…99]

Major product version [00…99]

Quality grade/production site

 A = automotive  B = professional  S = professional  X = ATEX

Minor product version (not relevant for certification)

Default value is 00

Figure 20: SARA-U270 ATEX modules label

For information about the approval codes and for all the certificates of compliancy of the SARA-U2 series

modules, see our website (www.u-blox.com) or contact the u-blox office or sales representative nearest you.

9.2 Explanation of codes

Three different product code formats are used. The Product Name is used in documentation such as this data sheet and identifies all the u-blox products, independent of packaging and quality grade. The Ordering Code includes options and quality, while the Type Number includes the hardware and firmware versions. Table 32 details these 3 different formats:

Table 32: Product code formats

Table 33 explains the parts of the product code.

Table 33: Part identification code

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Ordering No.

Product

SARA-U201-03B

UMTS/HSPA 800/850/900/1900/2100 MHz and GPRS/EDGE 850/900/1800/1900 MHz bands for worldwide use,

26.0 x 16.0 x 3.0 mm, 250 pcs/reel

SARA-U201-63B

UMTS/HSPA 800/850/900/1900/2100 MHz and GPRS/EDGE 850/900/1800/1900 MHz bands for worldwide use, approved by NTT DoCoMo Japanese network operator

26.0 x 16.0 x 3.0 mm, 250 pcs/reel

SARA-U201-03X

UMTS/HSPA 800/850/900/1900/2100 MHz and GPRS/EDGE 850/900/1800/1900 MHz bands for worldwide use, ATEX certified, 26.0 x 16.0 x 3.0 mm, 250 pcs/reel

SARA-U201-04B

UMTS/HSPA 800/850/900/1900/2100 MHz and GPRS/EDGE 850/900/1800/1900 MHz bands for worldwide use,

26.0 x 16.0 x 3.0 mm, 250 pcs/reel

SARA-U201-04X

UMTS/HSPA 800/850/900/1900/2100 MHz and GPRS/EDGE 850/900/1800/1900 MHz bands for worldwide use, ATEX certified, 26.0 x 16.0 x 3.0 mm, 250 pcs/reel

SARA-U260-00S

UMTS/HSPA 850/1900 MHz and GSM/EGPRS 850/1900 MHz bands for America,

26.0 x 16.0 x 3.0 mm, 250 pcs/reel

SARA-U260-03S

UMTS/HSPA 850/1900 MHz and GSM/EGPRS 850/1900 MHz bands for America,

26.0 x 16.0 x 3.0 mm, 250 pcs/reel

SARA-U270-00S

UMTS/HSPA 900/2100 MHz and GSM/EGPRS 900/1800 MHz bands for Europe, Asia and other countries,

26.0 x 16.0 x 3.0 mm, 250 pcs/reel

SARA-U270-03S

UMTS/HSPA 900/2100 MHz and GSM/EGPRS 900/1800 MHz bands for Europe, Asia and other countries,

26.0 x 16.0 x 3.0 mm, 250 pcs/reel

SARA-U270-53S

UMTS/HSPA 900/2100 MHz bands, approved by KT Korean network operator,

26.0 x 16.0 x 3.0 mm, 250 pcs/reel

SARA-U270-73S

UMTS/HSPA 900/2100 MHz bands, approved by SKT Korean network operator,

26.0 x 16.0 x 3.0 mm, 250 pcs/reel

SARA-U270-00X

UMTS/HSPA 900/2100 MHz and GSM/EGPRS 900/1800 MHz bands for Europe, Asia and other countries, ATEX certified, 26.0 x 16.0 x 3.0 mm, 250 pcs/reel

SARA-U280-00S

UMTS/HSPA 850/1900 MHz bands for America,

26.0 x 16.0 x 3.0 mm, 250 pcs/reel

SARA-U280-03S

UMTS/HSPA 850/1900 MHz bands for America,

26.0 x 16.0 x 3.0 mm, 250 pcs/reel

9.3 Ordering information

SARA-U2 series - Data Sheet

Table 34: Product ordering codes

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Name

Definition

ACM

Abstract Control Model

ADC

Analog to Digital Converter

ATEX

Atmospheres Explosive

BER

Bit Error Rate

CDC

Communications Device Class

DDC

Display Data Channel (I2C compatible) Interface

Down-link (Reception)

Driver Class

Output Driver Class: see Table 19 for definition

DRX

Discontinuous Reception

ECM

Ethernet networking Control Model

EDGE

Enhanced Data rates for GSM Evolution

ERS

External Reset Input Signal

GDI

Generic Digital Interfaces (V_INT supply power domain)

GND

Ground

GNSS

Global Navigation Satellite System

GPIO

General Purpose Input Output

GPRS

General Packet Radio Service

GSM

Global System for Mobile communications

High logic digital level

HSDPA

High Speed Downlink Packet Access

HSUPA

High Speed Uplink Packet Access

I2C

Inter-Integrated Circuit Interface

I2S

Inter-IC Sound Interface

Low logic digital level

LGA

Land Grid Array

N/A

Not Applicable

PCN / IN

Product Change Notification / Information Note

Pull-Down

POS

Power-On Input Signal (power domain)

Pull-Up

PU/PD Class

Pull-Up / Pull-Down Class: see Table 19 for definition

RMC

Reference Measurement Channel

SIM

SIM Interface (power domain)

SPI

Serial Peripheral Interface

Tristate (Output of the pin set to tri-state, i.e. high impedance state)

T/PD

Tristate with internal active Pull-Down enabled

T/PU

Tristate with internal active Pull-Up enabled

TBD

To Be Defined

UART

Universal Asynchronous Receiver-Transmitter serial interface

Up-link (Transmission)

UMTS

Universal Mobile Telecommunications System

USB

Universal Serial Bus (power domain)

Appendix

A Glossary

SARA-U2 series - Data Sheet

Table 35: Explanation of abbreviations and terms used

UBX-13005287 - R19 Appendix

Page 54 of 57

SARA-U2 series - Data Sheet

Revision history

SARA-U2 series - Data Sheet

UBX-13005287 - R19 Revision history

Page 56 of 57

u-blox Offices

North, Central and South America

u-blox America, Inc.

Phone: +1 703 483 3180 E-mail: info_us@u-blox.com

Regional Office West Coast:

Phone: +1 408 573 3640 E-mail: info_us@u-blox.com

Technical Support:

Phone: +1 703 483 3185 E-mail: support_us@u-blox.com

Headquarters Europe, Middle East, Africa

u-blox AG

Phone: +41 44 722 74 44 E-mail: info@u-blox.com Support: support@u-blox.com

Asia, Australia, Pacific

u-blox Singapore Pte. Ltd.

Phone: +65 6734 3811 E-mail: info_ap@u-blox.com Support: support_ap@u-blox.com

Regional Office Australia:

Phone: +61 2 8448 2016 E-mail: info_anz@u-blox.com Support: support_ap@u-blox.com

Regional Office China (Beijing):

Phone: +86 10 68 133 545 E-mail: info_cn@u-blox.com Support: support_cn@u-blox.com

Regional Office China (Chongqing):

Phone: +86 23 6815 1588 E-mail: info_cn@u-blox.com Support: support_cn@u-blox.com

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Phone: +86 21 6090 4832 E-mail: info_cn@u-blox.com Support: support_cn@u-blox.com

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Phone: +86 755 8627 1083 E-mail: info_cn@u-blox.com Support: support_cn@u-blox.com

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Phone: +91 80 4050 9200 E-mail: info_in@u-blox.com Support: support_in@u-blox.com

Regional Office Japan (Osaka):

Phone: +81 6 6941 3660 E-mail: info_jp@u-blox.com Support: support_jp@u-blox.com

Regional Office Japan (Tokyo):

Phone: +81 3 5775 3850 E-mail: info_jp@u-blox.com Support: support_jp@u-blox.com

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Phone: +82 2 542 0861 E-mail: info_kr@u-blox.com Support: support_kr@u-blox.com

Regional Office Taiwan:

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Contact

For complete contact information, visit us at http://www.u-blox.com/

SARA-U2 series - Data Sheet

UBX-13005287 - R19 Contact

Page 57 of 57

U-Blox SARA-U2 operation manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Contents

1 Functional description

1.1 Overview

1.2 Product features

1.3 Block diagram

1.4 Product description

1.5 AT command support

1.6 Supported features

2 Interfaces

2.1 Power management

2.1.1 Module supply (VCC)

2.1.2 RTC supply (V_BCKP)

2.1.3 Generic digital interfaces supply (V_INT)

2.2 Antenna

2.2.1 Antenna RF interface (ANT)

2.2.2 Antenna detection (ANT_DET)

2.3 System functions

2.3.1 Module power-on

2.3.2 Module power-off

2.3.3 Module reset

2.4 SIM

2.4.1 (U)SIM interface

2.4.2 SIM card detection (SIM_DET)

2.5 Serial interfaces

2.5.1 Asynchronous serial interface (UART)

2.5.1.1 Autobauding feature

2.5.1.2 Multiplexer protocol

2.5.2 Auxiliary asynchronous serial interface (AUX UART)

2.5.2.1 Autobauding feature

2.5.3 Universal Serial Bus (USB)

2.6 Audio

2.7 GPIO

3 Pin definition

3.1 Pin assignment

4 Electrical specifications

4.1 Absolute maximum rating

4.1.1 Maximum ESD

4.2 Operating conditions

4.2.1 Operating temperature range

4.2.1.1 Normal operating temperature range

4.2.1.2 Extended operating temperature range 1

4.2.1.3 Extended operating temperature range 2

4.2.2 Supply/Power pins

4.2.3 Current consumption

4.2.4 RF characteristics

4.2.5 ANT_DET pin

4.2.6 PWR_ON pin

4.2.7 RESET_N pin

4.2.8 (U)SIM pins

4.2.9 Generic Digital Interfaces pins

4.2.9.1 AC characteristics of digital audio interfaces pins

Normal I2S mode – Master mode

Normal I2S mode – Slave mode

PCM mode – Master mode

PCM mode – Slave mode

4.2.9.2 AC characteristics of Digital Clock Output pin

4.2.10 USB pins

5 Mechanical specifications

6 Reliability tests and approvals

6.1 Reliability tests

6.2 Approvals

6.2.1 SARA-U2 series

6.2.2 SARA-U201 ATEX and SARA-U270 ATEX

7 Product handling & soldering

7.1 Packaging

7.1.1 Reels

7.1.2 Tapes

7.2 Moisture Sensitivity Levels

7.3 Reflow soldering

7.4 ESD precautions

8 Default settings

9 Labeling and ordering information

9.1 Product labeling

9.2 Explanation of codes

9.3 Ordering information

Appendix