Telit Wireless Solutions WE866E4-P Hardware User's Manual
WE866E4-P AT Command Reference Guide
WE866E4-P Module
Hardware User Guide
1VV0301487 Rev. 1.2 - 2018-07-27
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80572ST10887A Rev. 1.2 1 2018-07-27
SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE
NOTICE
While reasonable efforts have been made to assure the accuracy of this document, Telit
assumes no liability resulting from any inaccuracies or omissions in this document, or from
use of the information obtained herein. The information in this document has been carefully
checked and is believed to be reliable. However, no responsibility is assumed for
inaccuracies or omissions. Telit reserves the right to make changes to any products described
herein and reserves the right to revise this document and to make changes from time to time
in content hereof with no obligation to notify any person of revisions or changes. Telit does not
assume any liability arising out of the application or use of any product, software, or circuit
described herein; neither does it convey license under its patent rights or the rights of others.
It is possible that this publication may contain references to, or information about Telit
products (machines and programs), programming, or services that are not announced in your
country. Such references or information must not be construed to mean that Telit intends to
announce such Telit products, programming, or services in your country.
COPYRIGHTS
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This instruction manual and the Telit products described in this instruction manual may be,
include or describe copyrighted Telit material, such as computer programs stored in
semiconductor memories or other media. Laws in the Italy and other countries preserve for
Telit and its licensors certain exclusive rights for copyrighted material, including the exclusive
right to copy, reproduce in any form, distribute and make derivative works of the copyrighted
material. Accordingly, any copyrighted material of Telit and its licensors contained herein or in
the Telit products described in this instruction manual may not be copied, reproduced,
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Furthermore, the purchase of Telit products shall not be deemed to grant either directly or by
implication, estoppel, or otherwise, any license under the copyrights, patents or patent
applications of Telit, as arises by operation of law in the sale of a product.
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COMPUTER SOFTWARE COPYRIGHTS
The Telit and 3rd Party supplied Software (SW) products described in this instruction manual
may include copyrighted Telit and other 3rd Party supplied computer programs stored in
semiconductor memories or other media. Laws in the Italy and other countries preserve for
Telit and other 3rd Party supplied SW certain exclusive rights for copyrighted computer programs, including the exclusive right to copy or reproduce in any form the copyrighted computer program. Accordingly, any copyrighted Telit or other 3rd Party supplied SW computer
programs contained in the Telit products described in this instruction manual may not be copied (reverse engineered) or reproduced in any manner without the express written permission
of Telit or the 3rd Party SW supplier. Furthermore, the purchase of Telit products shall not be
deemed to grant either directly or by implication, estoppel, or otherwise, any license under the
copyrights, patents or patent applications of Telit or other 3rd Party supplied SW, except for
the normal non-exclusive, royalty free license to use that arises by operation of law in the sale
of a product.
USAGE AND DISCLOSURE RESTRICTIONS
I. License Agreements
The software described in this document is the property of Telit and its licensors. It is
furnished by express license agreement only and may be used only in accordance with the
terms of such an agreement.
II. Copyrighted Materials
Software and documentation are copyrighted materials. Making unauthorized copies is
prohibited by law. No part of the software or documentation may be reproduced, transmitted,
transcribed, stored in a retrieval system, or translated into any language or computer
language, in any form or by any means, without prior written permission of Telit
III. High Risk Materials
Components, units, or third-party products used in the product described herein are NOT
fault-tolerant and are NOT designed, manufactured, or intended for use as on-line control
equipment in the following hazardous environments requiring fail-safe controls: the operation
of Nuclear Facilities, Aircraft Navigation or Aircraft Communication Systems, Air Traffic
Control, Life Support, or Weapons Systems (High Risk Activities"). Telit and its supplier(s)
specifically disclaim any expressed or implied warranty of fitness for such High Risk Activities.
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IV. Trademarks
TELIT and the Stylized T Logo are registered in Trademark Office. All other product or service
names are the property of their respective owners.
V. Third Party Rights
The software may include Third Party Right software. In this case you agree to comply with all
terms and conditions imposed on you in respect of such separate software. In addition to
Third Party Terms, the disclaimer of warranty and limitation of liability provisions in this
License shall apply to the Third Party Right software.
TELIT HEREBY DISCLAIMS ANY AND ALL WARRANTIES EXPRESS OR IMPLIED FROM
ANY THIRD PARTIES REGARDING ANY SEPARATE FILES, ANY THIRD PARTY
MATERIALS INCLUDED IN THE SOFTWARE, ANY THIRD PARTY MATERIALS FROM
WHICH THE SOFTWARE IS DERIVED (COLLECTIVELY “OTHER CODE”), AND THE USE
OF ANY OR ALL THE OTHER CODE IN CONNECTION WITH THE SOFTWARE,
INCLUDING (WITHOUT LIMITATION) ANY WARRANTIES OF SATISFACTORY QUALITY
OR FITNESS FOR A PARTICULAR PURPOSE.
NO THIRD PARTY LICENSORS OF OTHER CODE SHALL HAVE ANY LIABILITY FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED
AND WHETHER MADE UNDER CONTRACT, TORT OR OTHER LEGAL THEORY,
ARISING IN ANY WAY OUT OF THE USE OR DISTRIBUTION OF THE OTHER CODE OR
THE EXERCISE OF ANY RIGHTS GRANTED UNDER EITHER OR BOTH THIS LICENSE
AND THE LEGAL TERMS APPLICABLE TO ANY SEPARATE FILES, EVEN IF ADVISED
OF THE POSSIBILITY OF SUCH DAMAGES.
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WE866E4-P Module Hardware User Guide
Contents
Chapter 1 Introduction ....................................................................................................................... 7
1.1 Scope ......................................................................................................................................7
1.2 Audience ..................................................................................................................................7
1.3 Contact Information, Support ...................................................................................................7
1.4 Text Convention ......................................................................................................................8
1.5 Related Documents ................................................................................................................. 8
1.5.1 Related Documents and Download ................................................................................8
1.5.2 Related Documents requiring a Non Disclosure Agreement ..........................................9
Chapter 2 Overview ......................................................................................................................... 11
Chapter 3 Pin Allocation .................................................................................................................. 13
3.1 Pins Out .................................................................................................................................13
3.2 A Pad Layout ......................................................................................................................... 16
Chapter 4 Power Supply .................................................................................................................. 17
4.1 Power Supply Requirements ................................................................................................. 17
4.2 Power Consumption ..............................................................................................................17
4.3 General Design Rules ...........................................................................................................18
Chapter 5 Digital Section ................................................................................................................. 19
5.1 Logic Levels ...........................................................................................................................19
5.2 Power Up/Down Sequence ...................................................................................................20
5.3 Power ON Reset Time ...........................................................................................................20
5.4 Unconditional Shutdown ........................................................................................................20
5.5 Communication Ports ............................................................................................................21
5.5.1 High Speed UART ........................................................................................................21
5.5.2 Low Speed UART ........................................................................................................21
5.5.3 SDIO ............................................................................................................................22
5.5.4 SPI ...............................................................................................................................22
5.5.5 I2C ................................................................................................................................22
5.5.6 USB ..............................................................................................................................22
5.6 General Purpose Input/Output ...............................................................................................22
5.6.1 ADC Converter .............................................................................................................22
Chapter 6 RF Section ...................................................................................................................... 23
6.1 RF Variants ............................................................................................................................23
6.1.1 Wi-Fi .............................................................................................................................23
6.1.2 Bluetooth ......................................................................................................................23
6.2 TX Output Power ................................................................................................................... 24
6.2.1 Wi-Fi .............................................................................................................................24
6.2.2 Bluetooth ......................................................................................................................26
6.3 RX Sensitivity ........................................................................................................................26
6.3.1 Wi-Fi .............................................................................................................................26
6.3.2 Bluetooth ......................................................................................................................27
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6.2.1.1 For 2.4GHz ..........................................................................................................24
6.2.1.2 For 5GHz .............................................................................................................25
6.3.1.1 For 2.4GHz ..........................................................................................................26
6.3.1.2 For 5GHz .............................................................................................................26
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6.4 Wi-Fi Antenna Requirements ................................................................................................27
6.4.1 PCB Design Guidelines ................................................................................................28
6.4.2 PCB Guidelines in case of FCC Certification ............................................................... 29
6.5 BlueTooth Antenna Requirements ........................................................................................29
6.5.1 PCB Design Guidelines ................................................................................................29
6.5.2 PCB Guidelines in case of FCC Certification ............................................................... 29
Chapter 7 Audio Section .................................................................................................................. 31
7.1 Electrical Characteristics .......................................................................................................31
7.2 Codec Examples ...................................................................................................................31
Chapter 8 Mechanical Design .......................................................................................................... 33
8.1 Drawing .................................................................................................................................33
Chapter 9 Application PCB Design. ................................................................................................. 35
9.1 Footprint ................................................................................................................................35
9.2 PCB Pad Design ....................................................................................................................37
9.3 PCB Pad Dimension ..............................................................................................................38
9.3.1 Recommendations for PCB Pad Surface .....................................................................39
9.4 Stencil ....................................................................................................................................39
9.5 Solder Paste .......................................................................................................................... 39
9.6 Solder Re-flow ....................................................................................................................... 39
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Chapter 10 Packaging ..................................................................................................................... 43
10.1 Tray .....................................................................................................................................43
10.2 Reel .....................................................................................................................................44
10.3 Moisture Sensitivity ..............................................................................................................46
Chapter 11 Conformity Assessment Issue ...................................................................................... 47
11.1 FCC/IC Regulatory Notice ...................................................................................................47
Chapter 12 Safety Recommendation ............................................................................................... 49
12.1 Read Carefully .....................................................................................................................49
Chapter 13 Acronyms ...................................................................................................................... 51
Document History 53
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Chapter 1 Introduction
• Scope, page 7
• Audience, page 7
• Contact Information, Support, page 7
• Text Convention, page 8
• Related Documents, page 8
1.1 Scope
The aim of this document is to describe the hardware solutions useful for developing a
product with Telit WE866E4-P module.
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1.2 Audience
This document is intended for Telit customers, who are integrators, about to implement
their applications using our WE866E4-P modules.
1.3 Contact Information, Support
For general contact, technical support services, technical questions and report
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documentation errors contact Telit Technical Support at:
• TS-SRD@telit.com
Alternatively, use:
http://www.telit.com/support
For detailed information about where you can buy the Telit modules or for
recommendations on accessories and components visit:
http://www.telit.com
Our aim is to make this guide as helpful as possible. Keep us informed of your comments
and suggestions for improvements.
Telit appreciates feedback from the users of our information.
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1.4 Text Convention
The following table shows the symbol conventions used in this manual for notification and
important instructions.
Icon Type Description
Note
Table 1 Symbol Conventions
Provides helpful suggestions needed in understanding
a feature or references to material not available in the
manual.
Alert
Caution
Warning
Electro-Static Discharge
(ESD)
Danger
All dates are in ISO 8601 format, i.e. YYYY-MM-DD
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1.5 Related Documents
Please refer to http://www.telit.com/gnss/ for current documentation and downloads.
Alerts you of potential damage to a program, device,
or system or the loss of data or service.
Cautions you about a situation that could result in
minor or moderate bodily injury if not avoided.
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Warns you of a potential situation that could result in
death or serious bodily injury if not avoided.
Notifies you to take proper grounding precautions
before handling a product.
Indicates information MUST be followed or
catastrophic equipment failure or bodily injury may
occur
1.5.1 Related Documents and Download
– Datasheets
– Product User Guides
– EVK User Guides
– Software User Guides
– Application Notes
– TelitView installation and documentation
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1.5.2 Related Documents requiring a Non Disclosure Agreement
– Authorized Software User Guides
– Product firmware
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Chapter 2 Overview
The aim of this document is to describe some hardware solutions useful for developing a
product with Telit WE866E4-P module. All the basic functions of a mobile phone is
considered and certified for an appropriate hardware solution, common errors and wrong
solution that can be avoided are documented. The wrong solutions to be avoided shall be
considered as mandatory, while the suggested hardware configurations shall not be
considered mandatory, instead the information given shall be used as a guide and a starting
point for proper development of a product with the Telit WE866E4-P module.
For further hardware details refer to the “Telit WE866E4-P Product Description” document
where all the hardware information is reported.
NOTE:
1).(EN) The integration of WE866E4-P WiFi+BT module within user application
shall be done according to the design rules describe in this manual.
2).(IT)
3).(DE)
4).(SL)
5).(FR)
6).(HE)
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Chapter 3 Pin Allocation
• Pins Out, page 13
• A Pad Layout, page 16
3.1 Pins Out
Table 2, page 13 describes the WE866E4-P module pin signal description.
Table 2 WE866E4-P Module Pin Signal Description
Pins Name Input/Output Function Type Comments
USB HS 2.0 COMMUNICATION PORT
E5 USB_D+ Input/Output USB differential Data+
E6 USB_D- Input/Output USB differential Data -
E4 VUSB Input Power sense for USB
High Speed Asynchronous Serial Port (USIF0)
A4 UART0_TXD Output Serial data output
A5 UART0_RXD Input Serial data input CMOS VIO
B4 UART0_RTS Output Output CMOS VIO
B3 UART0_CTS Input Input CMOS VIO
Low Speed Asynchronous Serial Port (USIF0)
C3 UART1_RXD Input Serial data input CMOS VIO
C4 UART1_TXD Output Serial data input CMOS VIO
Serial Peripheral Interface (SPI) CMOS VIO
A3 SPI_MISO Input Pull-down (see Note 1) CMOS VIO Master
B2 SPI_MOSI Output Pull-down (see Note 1) CMOS VIO Master
A2 SPI_CLK Output Pull-down (see Note 1) CMOS VIO Master
D9 SPI_CS Output Pull-down CMOS VIO Master
Secure Digital Input Output (SDIO)
A6 SDIO_D2 Input/Output DATA2 CMOS VIO
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CMOS VIO
B6 SDIO_D1 Input/Output DATA1 CMOS VIO
B7 SDIO_D3 Input/Output DATA3 CMOS VIO
C7 SDIO_D0 Input/Output DATA0 CMOS VIO
D7 SDIO_CLK Input/Output Clock CMOS VIO
E7 SDIO_CMD Input/Output Command CMOS VIO
Inter - Integrated Circuit Interface
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Table 2 WE866E4-P Module Pin Signal Description (Continued)
Pins Name Input/Output Function Type Comments
F8 I2C_SDA Input/Output Data CMOS VIO
G8 I2C_SCL Input/Output Clock CMOS VIO GPIO_7
Analog Interface
A8 ADC_IN1 Input 12 BITS 1Mhz VIO 1V8 only
A9 ADC_IN2 Input 12 BITS 1Mhz VIO 1V8 only
B9 ADC_IN3 Input 12 BITS 1Mhz VIO 1V8 only
Digital Audio Interface (I2S) Master/Slave
C5 I2S_SYNC Input/Output Synchronization CMOS VIO
D5 I2S_SCK Input/Output Clock CMOS VIO
C6 I2S_SDI Input Input Data CMOS VIO
D6 I2S_SDO Output Output Data CMOS VIO
GP
IO_6
Miscellaneous Functions
G5 WiFI_EN Input Power Enable CMOS VIO Active HI
G6 BT_EN Input Power Enable CMOS VIO Active HI
D1 ANT_1 Input/Output Wi-Fi 2.4G and 5G RF 50Ohms
G3 ANT_2 Input/Output BT 2.4G CMOS VIO 50Ohms
D3 GPIO_1 Input/Output GENERIC IO CMOS VIO WAKEUP
E3 GPIO_2 Input/Output GENERIC IO CMOS VIO BT_PRIORITY
F5 GPIO_3 Input/Output GENERIC IO CMOS VIO WI-FI ACTIVE
F6 GPIO_4 Input/Output GENERIC IO CMOS VIO BT_ACTIVE
F7 GPIO_5 Input/Output GENERIC IO CMOS VIO DAC_OUT
Power Supply
A1 VDD_BLE Input Main BLE Power Supply Power
A2 VDD_WLAN Input Main Wi-Fi Power Supply Power
A3 VIO Input Digital I/O Power Supply Power
B1 GND Ground Power
B2 GND Ground Power
C1 GND Ground Power
C2 GND Ground Power
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D2 GND Ground Power
E1 GND Ground Power
E2 GND Ground Power
F1 GND Ground Power
F2 GND Ground Power
F3 GND Ground Power
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Table 2 WE866E4-P Module Pin Signal Description (Continued)
Pins Name Input/Output Function Type Comments
F4 GND Ground Power
G1 GND Ground Power
G2 GND Ground Power
G4 GND Ground Power
G7 GND Ground Power
A7 GND Ground Power
C9 GND Ground Power
Reversed
B5 RESERVED RESERVED
D4 RESERVED RESERVED
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3.2 A Pad Layout
The following representation shows the top view of the Pad layout:
ABCDEFG
1 VDD_BLE GND GND ANT_1 GND GND GND
2 VDD_WLAN GND GND GND GND GND GND
3 VIO UART0_CTS UART1_RX
4 UART0_TXD UART0_RTS UART_TX RES USB_VDD GND GND
5 UART0_RX RES I2S_SYNC I2S_SCK USB_DP
6 SDIO_D2 SDIO_D1 I2S_SDI I2S_SDO USB_DM
SDIO_D3
7 GND
8 ADC_IN1 JTAG_TCK JTAG_TD0 JTAG_TMS JTAG_TDI
SPI_MOSI
UART0_RTS
SDIO_D0
SPI_MISO
UART0_RXD
GPIO_1
WAKEUP
SDIO_CLK
SPI_CLK
UART0_CTS
GPIO_2
BT_PRIORITY
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SDIO_CMD
SPI_CS
UART0_TXD
GND ANT_2
GPIO_3
Wi-Fi Active
GPIO_4
BT_ACTIVE
GPIO_5
DAC_OUT1
GPIO_6
I2C_SDA
WiFi_EN
BT_EN
GPIO_7
I2C_SCL
GND
9 ADC_IN2 ADC_IN3 GND
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SPI_CS
(MASTER)
GPIO
SPI_CLK
(MASTER)
GPIO
SPI_MOSI
(MASTER)
GPIO
SPI_MISO
(MASTER)
GPIO
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Chapter 4 Power Supply
• Power Supply Requirements, page 17
• Power Consumption, page 17
• General Design Rules, page 18
4.1 Power Supply Requirements
Table 3, page 17 provide the Power supply requirements of WE866E4-P module.
Power Supply Minimum Typical Maximum
Table 3 Power Supply Requirements
Absolute Maximum to avoid
permanent damage at any power supply
pin
Recommended-VDD_BLE,
VDD_WLAN, USB_VDD
Recommended VIO 3.14/1.71V 3.3V/1.8V 3.46V/1.86V
Note: The ADC cannot be used if VIO is not equal to 1V8.
4.2 Power Consumption
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Table 4, page 17 lists the types of Power Consumption.
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-0.3V 4.0V
3.14V 3.3V 3.46V
Table 4 Power Consumption
Power Consumption Typical
POWER DOWN WiFi_EN=0, BT_EN=0 TBD μA
Suspend TBD μA
Host OFF TBD μA
Sleep TBD μA
ON; Radio OFF TBD mA
BLE RX TBD mA
BLE TX TBD mA
WiFi RX TBD mA
WiFi TX TBD mA
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