ST Microelectronics SPBTLE1S Users Manual

Very low power application module for Bluetooth® Smart v4.2

Features

• Bluetooth v4.2 compliant – Supports master and slave modes

– Multiple roles supported simultaneously

• High performance, ultra-low power Cortex-M0 32-bit based architecture core

• Programmable 160 KB Flash

• 24 KB RAM with retention

• Interfaces:

• Bluetooth radio performance: – Embedded BlueNRG-1Bluetooth SoC

– Max Tx power: + 5 dBm – Rx sensitivity: - 88 dBm – Provides up to 93 dB link budget with

• On-board chip antenna

• Small form factor: 11.5mmx13.5mm

• Complemented with Bluetooth low energy protocol stack library (GAP, GATT, SM, L2CAP, LL)

• AES security co-processor

• Bluetooth low energy profiles provided separately

• Certifications:

1 x UART, 2 x I2C, 1xSPI, 14 x GPIO, 2 x multifunction timer, 10-bit ADC, Watchdog & RTC, DMA controller, PDM stream processor, SWD debug Interface

excellent link reliability

Databrief - preliminary data

SPBTLE-1S

– EU Type certificate (pending) – FCC, IC modular approval certification

(pending) – SRRC Chinese Certification (pending) – BT SIG End Product QDID (pending)

• Pre programmed bootloader via UART

• Operating supply voltage: from 1.7 to 3.6 V

• Operating temperature range: -40 °C to 85 °C

Applications

• Internet of Things

• Smart Home

• Building and Industrial Automation

• Smart Lighting

• Remote and access control

• Fitness, wellness and sports

• Consumer medical

• Security and proximity

• Assisted living

• PC and smart phone peripherals

Description

The SPBTLE-1S is a Bluetooth® Smart application processor certified module, compliant with BT specifications v4.2 and BQE qualified. The SPBTLE-1S module supports multiple roles simultaneously and can act at the same time as Bluetooth Smart master and slave device.

The SPBTLE-1S is based on BlueNRG-1 systemon-chip and entire Bluetooth Low Energy stack and protocols are embedded into module.

The SPBTLE-1S module provides a complete RF platform in a tiny form factor. Radio, antenna and high frequency oscillators are integrated to offer a certified solution to optimize the time to market of the final applications.

The SPBTLE-1S can be powered directly with a pair of AAA batteries or any power source from

1.7 to 3.6 V.

SPBTLE-1S

Contents

General description ................................................................................... 4

Block diagram ............................................................................................ 5

Software Development .............................................................................. 6

3.1 Software development Kit ............................................................................. 6

3.2 Software Architecture ................................................................................... 6

Hardware specifications ........................................................................... 8

4.1 Absolute maximum ratings ........................................................................... 8

4.2 Recommended operating conditions ............................................................ 8

4.3 Current consumption .................................................................................... 8

4.4 Pin assignment ............................................................................................. 9

4.5 Mechanical dimensions .............................................................................. 11

Hardware design ......................................................................................12

5.1 Reset Circuitry ............................................................................................ 12

5.2 Debug Interface .......................................................................................... 12

5.3 Reflow soldering ......................................................................................... 13

Regulatory compliance ............................................................................15

6.1 FCC certification ......................................................................................... 15

6.1.1 Labeling instructions................................................................................................. 15

6.1.2 Product manual instructions ..................................................................................... 16

6.2 IC certification ............................................................................................ 17

6.2.1 Labeling instructions................................................................................................. 17

6.2.2 Product manual instructions ..................................................................................... 18

6.3 EU Type approval for SPBTLE-1S module ................................................. 19

6.4 Bluetooth certification ................................................................................. 19

Ordering information ................................................................................27

ECOPACK® ................................................................................................28

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Traceability ...............................................................................................28

Revision history .......................................................................................29

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SPBTLE-1S

1 General description

The SPBTLE-1S is a Bluetooth Smart application processor module compliant with Bluetooth® specifications v4.2 with embedded ceramic antenna.

The SPBTLE-1S module has been designed around the ST BlueNRG-1 SoC where its Cortex-M0 core can execute both Bluetooth protocols and customer application. A complete power-optimized Bluetooth stack library provides:

• Master, slave, multiple roles support

• GAP: central, peripheral, observer or broadcaster roles

• simultaneous advertising and scanning

• capability of being slave of up to two masters simultaneously

• ATT/GATT: client and server

• SM: privacy, authentication and authorization

• L2CAP

• Link Layer: AES-128 encryption and decryption The SPBTLE-1S has 160KB embedded Flash and 24KB embedded RAM memory.

In the module are available 32MHz and 32KHz crystal oscillators. It has been designed to leverage the BlueNRG-1 integrated DC-DC step down converter.

It can be configured to support Single chip application or Network processor application. Being based on the BlueNRG-1 SoC, the SPBTLE-1S module leverages all the tools and

documentation of its ecosystem: Development Kit, Application Notes, User Manuals, Design Notes & Tips. A wide set of sample programs are also available in C source code.

The SPBTLE-1S module has a wide set of peripherals available for customer application (1 x UART interface, 1 x SPI interface, 2 x I2C interface, 14 or 15 GPIO, 2 x multifunction timer, 10-bit ADC, Watchdog & RTC, DMA controller, PDM stream processor).

The SPBTLE-1S module enables wireless connectivity into electronic devices, not requiring any RF experience or expertise for integration into the final product. The SPBTLE-1S module provides a complete RF application platform in a tiny form factor (11.5 x 13.5 x 2.0 mm) and being a certified solution optimizes the time to market of the final applications.

The SPBTLE-1S module allows applications to meet the tight advisable peak current requirements imposed with the use of standard coin cell batteries. Optimized results are obtained with the embedded high-efficiency DC-DC step-down. SPBTLE-1S can be powered directly with a standard 3 V coin cell battery, a pair of AAA batteries or any power source from 1.7 to 3.6 V.

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2 Block diagram

Figure 1: HW block diagram

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SPBTLE-1S

3 Software Development

3.1 Software development Kit

The SPBTLE-1S module embeds the BlueNRG-1 application processor. Refer to the BlueNRG-1 web page (http://www.st.com/en/wireless-connectivity/bluenrg-1.html) to get access to:

• BlueNRG-1 datasheet

• development kit

• application notes

• user manuals

• tools & software

• design note and tips

Software and firmware should be configured taking into account the SPBTLE-1 specific configuration as described in the block diagram chapter. In particular the SPBTLE-1 module has:

• 32 MHz crystal oscillator

• 32 KHz crystal oscillator

• SMPS DC-DC converter

• 10

H SMPS inductor

The projects provided with the development kit should be customized defining as following:

• HS_SPEED_XTAL=HS_SPEED_XTAL_32MHZ

• LS_SOURCE=LS_SOURCE_EXTERNAL_32KHZ

• SMPS_INDUCTOR=SMPS_INDUCTOR_10uH

3.2 Software Architecture

There are two possible software architectures:

1. Host-less mode: customer application runs on the SPBTLE-1S module. Many sample projects

are available in the Development Kit.

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Figure 2: SPBTLE-1S Host less mode

2. Hosted mode: the module is configured as network module controlled by an external host

connected via SPI or UART. A project named DTM is available in the Development Kit that configures the SPBTLE-1S module as a network module.

Figure 3: Hosted mode

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SPBTLE-1S

°C

- 8 -

°C

µA

15 mA

Table

: Current consumption table

4 Hardware specifications

General conditions (VIN= 3.3 V and 25 °C)

4.1 Absolute maximum ratings

Rating

Min

Typ.

Max

Unit

Storage temperature range Supply voltage, V I/O pin Voltage (VIO five-volt tolerant pin) RF saturation input power

Table 1: Absolute maximum ratings

-40

-0.3

4.2 Recommended operating conditions

Rating

Storage temperature range Supply voltage, V Signals & I/O pin voltage

(according supply voltage) RF Frequency

Table 2: Recommended operating conditions

Min

-40

1.7

2402

Typ.

3.3

4.3 Current consumption

Characteristics measured over recommended operating conditions unless otherwise specified. Typical value are referred to TA = 25 °C, V

= 3.0 V

+85

3.9

Max

+85

3.6

2480

dBm

Unit

MHz

Symbol

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Parameter

Reset Standby Sleep mode

Supply current

Active Mode RX TX: +5dBm TX: 0 dBm 11 mA

Test conditions

Typ.

500

0.9

1.9

7.7

Unit

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Current consumption values has been taken using the “BlueNRG current consumption estimation tool”, configured to match the SPBTLE-1S configuration.

The tool is available on ST.com at:

http://www.st.com/en/embedded-software/stsw-bnrg001.html

4.4 Pin assignment

Figure 4: Pin connection

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