BLUENRG-M2SA

**BlueNRG-M2** 

Datasheet 

Very low power application processor module for Bluetooth® low energy v5.2 

## **Features** 

- Bluetooth v5.2 certified 

   - Supports master and slave modes 

– mZaome Nea Multiple roles supported simultaneously – LE data packet length extension • Embedded ST BlueNRG-2 BLE SoC 

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

   - Programmable embedded 256 kB Flash 

   - 24 kB embedded RAM with data retention 

   - Up to +8 dBm available output power 

   - Down to -88 dBm Rx sensitivity 

   - Up to 96 dB link budget with excellent link reliability 

- Embedded BALF-NRG-02D3 integrated matched balun with harmonic filter 

- • Interfaces: 

   - 1 x UART, 1 x I[2] C, 1xSPI, 14 x GPIO, 2 x multifunction timer, 10-bit ADC, watchdog and RTC, DMA controller, PDM stream processor, SWD debug interface 

- On-board chip antenna (BLUENRG-M2SA) or PCB antenna (BLUENRG-M2SP) 

- Small form factor: 11.5 mm x13.5 mm 

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

**Product status link** BlueNRG-M2 **Product label** 

- AES secutity co-processor 

- Bluetooth low energy SDK with a wide range of available profiles 

- Certification 

   - CE qualified 

   - FCC, IC modular approval certified 

   - TYPE qualified 

   - BQE qualified 

   - WPC certification 

   - SRRC certification (BlueNRG-M2SA) 

   - KCC cerification 

- Pre-programmed UART bootloader 

- 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 

**DS13053** - **Rev 7** - **December 2021** For further information contact your local STMicroelectronics sales office. 

www.st.com 

**BlueNRG-M2** 

- Security and proximity 

- Assisted living 

- PC and smart phone peripherals 

## **Description** 

The BlueNRG-M2 is a Bluetooth® low energy system-on-chip application processor certified module, certified under BT specifications v5.2 and BQE qualified. The BlueNRG-M2 module supports multiple roles simultaneously and can act at the same time as Bluetooth master and slave device. The BlueNRG-M2 is based on the BlueNRG-2 system-on-chip and entire Bluetooth low energy stack and protocols are embedded into module. The BlueNRG-M2 module provides a complete RF platform in a tiny form factor. Radio, embedded antenna and high frequency oscillators are integrated to offer a certified solution to optimize the time-to-market of the final applications. The BlueNRG-M2 can be powered directly with a pair of AAA batteries or any power source from 1.7 to 3.6 V. 

**DS13053** - **Rev 7** 

**page 2/31** 

**BlueNRG-M2 General description** 

## **1 General description** 

The BlueNRG-M2 is a Bluetooth low energy application processor modules certified under Bluetooth® v5.2 specifications. 

The BlueNRG-M2 module has been designed around the ST BlueNRG-2 SoC where its Cortex-M0 core can execute both Bluetooth protocols and customer application. Optimized memory architecture includes 256 kB of Flash memory and 24 kB of ultra-low-leakage RAM (with full data retention). A complete power-optimized Bluetooth stack library provides: 

- Master, slave, multiple role 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 

In the BLUENRG-M2SA module both 32 MHz and 32 kHz crystal oscillators are available. It has been designed to leverage the BlueNRG-2 integrated DC-DC step down converter in order to achieve the best power consumption in active mode. It also embeds a high efficiency chip antenna. It can be configured to support both application processor (host-less) and network processor (hosted) modes. 

Being based on the BlueNRG-2 SoC, the BlueNRG-M2 module leverages all 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 BlueNRG-M2 module has a wide set of peripherals available for customer applications (1 x UART interface, 1 x SPI interface, 1 x I[2] C interface, 14 GPIO, 2 x multifunction timer, 10-bit ADC, watchdog & RTC, DMA controller, PDM stream processor). 

The BlueNRG-M2 module enables wireless connectivity into electronic devices, not requiring any RF experience or expertise for integration into the final product. The BlueNRG-M2 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 BlueNRG-M2 module allows applications to meet the tight advisable peak current requirements imposed with the use of standard coin cell batteries. Optimized results are obtained when the embedded high-efficiency DC-DC step-down converter is used (BLUENRG-M2SA). Instead, for the BLUENRG-M2SP the best performance in terms of power consumption is achieved using a 1.8 V DC power supply. The BlueNRG-M2 can be powered directly with a standard 3 V coin cell battery as with a pair of AAA batteries or any power source from 1.7 to 3.6 V. 

**DS13053** - **Rev 7** 

**page 3/31** 

**BlueNRG-M2 Block diagram** 

**2** 

## **Block diagram** 

**Figure 1. HW block diagram for the BlueNRG-M2** 

**DS13053** - **Rev 7** 

**page 4/31** 

**BlueNRG-M2 Software architecture** 

## **3 Software architecture** 

## **3.1** 

## **Software development kit** 

The BlueNRG-M2 module embeds the BlueNRG-2 application processor. Refer to the BlueNRG-2 web page (http://www.st.com) to get access to: 

- BlueNRG-2 datasheet 

- development kit 

- Application notes 

- User manuals 

- Tools and software 

- Design note and tips 

Software and firmware should be configured taking into account the BlueNRG-M2 specific configuration as described in Section  2  Block diagram. 

The BLUENRG-M2SA module has: 

- 32 MHz crystal oscillator 

- 32 kHz crystal oscillator 

- SMPS DC-DC converter 

- 10 µH 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 

The BLUENRG-M2SP module has: 

- 32 MHz crystal oscillator 

- LDO converter 

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

- HS_SPEED_XTAL=HS_SPEED_XTAL_32MHZ 

- LS_SOURCE=LS_SOURCE_INTERNAL_RO 

- SMPS_INDUCTOR=SMPS_INDUCTOR_NONE 

**DS13053** - **Rev 7** 

**page 5/31** 

**BlueNRG-M2 Software structure** 

## **3.2 Software structure** 

There are two possible software architectures: 

1. Host-less mode (application processor): customer application runs on the BlueNRG-M2 module. Many sample projects are available in the development kit 

**Figure 2. BlueNRG-M2 - BLE application processor** 

1. Hosted mode (network processor): 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 BlueNRG-M2 module as a network module. 

**Figure 3. BlueNRG-M2 as BLE network processor** 

**DS13053** - **Rev 7** 

**page 6/31** 

**BlueNRG-M2 General characteristics** 

## **4 General characteristics** 

## **4.1 Absolute maximum ratings** 

## **Table 1. Absolute maximum ratings** 

|**Ratings**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|
|Storage temperature range|-40|-|+85|°C|
|Supply voltage, VIN|-0.3|-|3.9|V|
|I/O pin voltage (VIOfive-volt tolerant pin)|-0.3|-|3.9|V|
|RF saturation input power|-|8|-|dBm|
|VESD-HBM electrostatic discharge voltage||±2.0||kV|



## **4.2 Operating conditions** 

## **Table 2. Operating conditions** 

|**Ratings**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|
|Storage temperature range|-40|-|+85|°C|
|Operating ambient temperature range|-40|-|+85|°C|
|Supply voltage, VIN|1.7|3.3|3.6|V|
|Signals and I/O pin voltage (according supply voltage)|1.7|-|3.6|V|
|Frequency range|2402|-|2480|MHz|



**DS13053** - **Rev 7** 

**page 7/31** 

**BlueNRG-M2 Electrical specifications** 

## **5 Electrical specifications** 

## **5.1 Electrical characteristics** 

Characteristic measured over recommended operating conditions unless otherwise specified. Typical values are referred to VIN= 3.3 V, 25 °C, SMPS on, XO 32 kHz and 32 MHz. 

**Table 3. Electrical characteristics for the BLUENRG-M2SA** 

|**Symbol**|**Parameter**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|
|IDD|Supply current|Reset||5||nA|
|||Standby||0.5||uA|
|||Sleep mode: 32 kHz XO ON (24 kB retention<br>RAM)||0.9||μA|
|||Active mode||1.89||mA|
|||RX||7.55||mA|
|||TX +8 dBm||14.78||mA|
|||TX +4 dBm||10.73||mA|
|||TX +2 dBm||9.27||mA|
|||TX -2 dBm||8.46||mA|
|||TX -5 dBm||7.89||mA|
|||TX -8 dBm||7.45||mA|
|||TX -11 dBm||7.17||mA|
|||TX -14 dBm||7.01||mA|



Characteristic measured over recommended operating conditions unless otherwise specified. Typical values are referred to VIN= 3.3 V, 25 °C, SMPS off, RO 32 kHz and 32 MHz. 

**Table 4. Electrical characteristics for the BLUENRG-M2SP** 

|**Symbol**|**Parameter**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|
|IDD|Supply current|Reset||5||nA|
|||Standby||0.5||uA|
|||Sleep mode: 32 kHz RO ON (24 kB retention<br>RAM)||2.1||μA|
|||Active mode||2.75||mA|
|||RX||15||mA|
|||TX +8 dBm||33.9||mA|
|||TX +4 dBm||22.6||mA|
|||TX +2 dBm||19.1||mA|
|||TX -2 dBm||16.9||mA|
|||TX -5 dBm||15.6||mA|
|||TX -8 dBm||14.7||mA|
|||TX -11 dBm||14.1||mA|



**DS13053** - **Rev 7** 

**page 8/31** 

**BlueNRG-M2 Digital I/O specifications** 

|**Symbol**|**Parameter**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|
|IDD|Supply current|TX -14 dBm||13.7||mA|



## **5.2** 

## **Digital I/O specifications** 

IO pins are directly connected to the embedded state of the art BlueNRG-2 chipset. For more details about the digital I/O specifications, please refer directly to the BlueNRG-2 datasheet available on www.st.com. 

**DS13053** - **Rev 7** 

**page 9/31** 

**BlueNRG-M2 RF general characteristics** 

## **5.3 RF general characteristics** 

Characteristic measured over recommended operating conditions unless otherwise specified. Typical value are referred to VIN= 3.3 V, 25 °C, DC/DC on, XO 32 kHz (BLUENRG-M2SA only) and XO 32 MHz. 

**Table 5. RF general characteristics** 

|**Symbol**|**Parameter**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|
|FREQ|Frequency range||2400|-|2483.5|MHz|
|FCH|Channel spacing||-|2|-|MHz|
|RFch|RF channel center frequency||2402|-|2480|MHz|



**Table 6. BLUENRG-M2SA RF characteristics** 

|**Symbol**|**Parameter**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|
|RPMAX(1)|Output power(2)|Radiated||+5||dBm|
|RXSENS|Sensitivity(2)|Conducted||-85||dBm|



_1. PA-Level set to 0x07 and En-High_Power set to 0x01 (corresponding to +8 dBm in conducted mode)._ 

_2. Radiated power may be impacted by application board / housing / etc._ 

**Table 7. BLUENRG-M2SP RF characteristics** 

|**Symbol**|**Parameter**|**Test conditions**|**Min.**|**Typ.**|**Max.**|**Unit**|
|---|---|---|---|---|---|---|
|RPMAX(1)|Radiated output power(2)|Radiated||+7||dBm|
|RXSENS|Sensitivity(2)|Conducted||-85||dBm|



_1. PA-Level set to 0x07 and En-High_Power set to 0x01 (corresponding to +8dBm in conducted mode)._ 

_2. Radiated power may be impacted by application board / housing / etc._ 

**DS13053** - **Rev 7** 

**page 10/31** 

**BlueNRG-M2 Pin assignment** 

## **5.4 Pin assignment** 

**Figure 4. Pin connection for the BLUENRG-M2SA** 

**Figure 5. Pin connection for the BLUENRG-M2SP** 

**DS13053** - **Rev 7** 

**page 11/31** 

**BlueNRG-M2 Pin assignment** 

## **Table 8. Pin connection** 

|**Pi #**|**N**|**Function**|**Function**|**Function**|**Function**|
|---|---|---|---|---|---|
|**n**|**ame**|**Mode “000”**|**Mode “001”**|**Mode “100”**|**Mode “010”**|
|1|ADC2|ADC input 2||||
|2|ADC1|ADC input 1||||
|3|DIO4|GPIO4|UART_RXD|I2C2_CLK|PWM0|
|4|DIO5|GPIO5|UART_TXD|I2C2_DAT|PWM1|
|5|VIN|Power Supply||||
|6|ANATEST0/DIO14|GPIO14|I2C1_CLK|SPI_CLK|ADC_DAT|
|7|DIO7/BOOT(1)|GPIO7|UART_CTS|I2C2_DAT|PDM_CLK|
|8|GND|Ground||||
|9|DIO6|GPIO6|UART_RTS|I2C2_CLK|PDM_DAT|
|10|DIO8|GPIO8|UART_TXD|SPI_CLK|PDM_DAT|
|11|DIO11|GPIO11|UART-RXD|SPI_CS1||
|12|DIO9|GPIO9|SWCLK|SPI_IN(2)||
|13|DIO10|GPIO10|SWDIO|SPI_out(3)||
|14|ANATEST1|Anatest1||||
|15|DIO0|GPIO0|UART_CTS|SPI_CLK||
|16|DIO2|GPIO2|PWM0|SPI_OUT|PDM_CLK|
|17|DIO3|GPIO3|PWM1|SPI_IN|ADC_CLK|
|18|DIO1|GPIO1|UART_RTS|SPI_CS1|PDM_DAT|
|19|RESETN|Reset||||
|20|DIO12|GPIO12(4)||I2C1_CLK||
|21(5)|GND|Ground or leave unconnected||||
|22(5)|N.C.|Leave unconnected||||
|23(5)|N.C.|Leave unconnected||||



_1. The pin DIO7/BOOT is monitored by bootloader after power-up or hardware reset and it should be low to prevent unwanted bootloader activation._ 

_2. The function SPI_IN indicates that the pin is always an input when configured for SPI. Thus in case of SPI master role, it acts as MISO pin. In case of SPI slave role, this pin act as MOSI_ 

_3. The function SPI_OUT indicates that the pin is always an output when configured for SPI. Thus in case of SPI master role, it acts as MOSI pin. In case of SPI slave role, this pin act as MISO._ 

_4. DI012 can only be general purpose input pins (not output), or I[2] C1 clock pin._ 

_5. BLUENRG-M2SA only._ 

**DS13053** - **Rev 7** 

**page 12/31** 

**BlueNRG-M2 Hardware design** 

## **6 Hardware design** 

_Note:_ 

- _All unused pins should be left floating; do not ground_ 

- _All GND pins must be well grounded_ 

- _The area around the module should be free of any ground planes, power planes, trace routings, or metal for 6 mm from the module antenna position, in all directions._ 

- _Traces should not be routed underneath the module_ 

## **6.1** 

## **Reset circuitry** 

The BlueNRG-M2 module requires an external reset circuitry to ensure proper operation at power-on. Refer to the "Reset management" section of the BlueNRG-2 datasheet for details. 

**Figure 6. Reset circuitry** 

If reset pin is controlled by an external host, RC circuit on the RESETn line is not required. 

## **6.2 Debug interface** 

The BlueNRG-M2 embeds the ARM serial wire debug (SWD) port. It is two pin (clock and single bi-directional data) debug interface, providing all the debug functionality plus real time access to system memory without halting the processor or requiring any target resident code 

**Table 9. Debug interface** 

|**Pin functionality**|**Module PIN**|**Pin description**|
|---|---|---|
|SWCLK|12|SWD clock signal|
|SWDIO|13|SWD data signal|



For more information refer to the BlueNRG-2 technical documentation (https://www.st.com). 

**DS13053** - **Rev 7** 

**page 13/31** 

**BlueNRG-M2 Reflow soldering** 

## **6.3 Reflow soldering** 

The BlueNRG-M2 is a high temperature strength surface mount Bluetooth® module supplied on a 23-pin (BLUENRG-M2SA) or 20 pin (BLUENRG-M2SP), 4-layer PCB. The final assembly recommended reflow profiles are indicated here below. 

Soldering phase has to be executed with care: in order to avoid undesired melting phenomenon, particular attention has to be taken on the set up of the peak temperature. 

Here are some suggestions for the temperature profile based on the following recommendations. 

**Table 10. Soldering profile** 

|**Profile feature**|**PB-free assembly**|
|---|---|
|Average ramp up rate (TSMAXto Tp)|3°C/ s max.|
|Preheat<br>temperature min (TSmin.)<br>temperature max (TSmax.)<br>time (tSmin to tSmax.) (tS)|150 °C<br>200 °C<br>60-100 s|
|Time maintained above<br>Temperature TL<br>Time tL|217 °C<br>60-70 s|
|Peak temperature (TP)|240 +0 °C|
|Time within 5 °C of peak temperature (TP-5°)|10-20 s|
|Ramp down rate|6 °C/s|
|Time from 25 °C to peak temperature|8 minutes max.|



**Figure 7. Soldering profiles** 

**==> picture [324 x 146] intentionally omitted <==**

**DS13053** - **Rev 7** 

**page 14/31** 

**BlueNRG-M2 Regulatory compliance** 

## **7 Regulatory compliance** 

## **7.1 FCC certification** 

This module has been tested and found to comply with the FCC part 15 rules. These limits are designed to provide reasonable protection against harmful interference in approved installations. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. 

However, there is no guarantee that interference may not occur in a particular installation. 

This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: 

1. this device may not cause harmful interference 

2. this device must accept any interference received, including interference that may cause undesired operation 

Modifications or changes to this equipment not expressly approved by STMicroelectronics may render void the user's authority to operate this equipment. 

## **Modular approval** 

FCC ID: S9NBNRGM2SA & S9NBNRGM2SP 

In accordance with FCC part 15, the BLUENRG-M2SA and BLUENRG-M2SP is listed as a modular transmitter device. 

This module is evaluated for stand-alone use only. Finished products incorporating multiple transmitters must comply with collocation and RF exposure requirements in accordance with FCC multi-transmitter product procedures. Collocated transmitters operating in portable RF Exposure conditions (e.g. <20 cm from persons including but not limited to body worn and hand held devices) may require separate approval. 

## **7.1.1** 

## **Labeling instructions** 

When the BLUENRG-M2SA and BLUENRG-M2SP are integrated into the final product, the OEM must ensure that the FCC labeling requirements are satisfied. A statement must be included on the exterior of the final product which indicates the product includes a certified module. The label should state the following (or similar wording that conveys the same meaning): 

Contains FCC ID: S9NBNRGM2SA & S9NBNRGM2SP 

OR 

This product contains FCC ID: S9NBNRGM2SA & S9NBNRGM2SP 

The OEM must include the following statements on the exterior of the final product unless the product is too small (e.g. less than 4 x 4 inches): 

This device complies with part 15 of the FCC rules. Operation is subjected to the following two conditions: 

1. this device may not cause harmful interference and 

2. this device must accept any interference received, including any interference that may cause undesired operations. 

## **7.1.2 Product manual instructions** 

This section applies to OEM final products containing the BlueNRG-M2 module, subjected to FCC compliance. The final product manual must contain the following statement (or a similar statement that conveys the same meaning): 

_Note: Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. (Part. 15.21)_ 

In the case where an OEM seeks Class B (residential) limits for the final product, the following statement must be included in the final product manual: 

**DS13053** - **Rev 7** 

**page 15/31** 

**BlueNRG-M2 IC certification** 

_Note:_ 

_This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:_ 

- _Reorient or relocate the receiving antenna_ 

- _Increase the separation between the equipment and receiver_ 

- _Connect the equipment into an outlet on a circuit different from that to which the receiver is connected_ 

- _Consult the dealer or an experienced radio/TV technician for help_ 

In the case where an OEM seeks the lesser category of a Class A digital device for the final product, the following statement must be included in the final product manual: 

_Note:_ 

_This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his expense._ 

## **7.2** 

## **IC certification** 

This device contains license-exempt transmitter(s)/receiver(s) that comply with innovation, science and economic development Canada’s license-exempt RSS(s). Operation is subjected to the following two conditions: 

1. this device may not cause interference 

and 

1. this device must accept any interference, including interference that may cause undesired operations of the device. 

In addition, in accordance with RSS-102 clause 2.6, the RF exposure compliance distance of the BlueNRG-M2 is set equal to 15 mm. 

## **Modular approval** 

## IC: 8976C-BNRGM2SA and 8976C-BNRGM2SP 

In accordance with IC RSS-247, the BlueNRG-M2 is listed as a modular transmitter device. 

This module is evaluated for stand-alone use only. Finished products incorporating multiple transmitters must comply with collocation and RF exposure requirements in accordance with IC multi-transmitter product procedures. Collocated transmitters operating in portable RF Exposure conditions (e.g. <20 cm from persons including but not limited to body worn and hand held devices) may require separate approval. 

## **7.2.1** 

## **Labeling instructions** 

When the BlueNRG-M2 is integrated into the final product, the OEM must ensure that the IC labeling requirements are satisfied. A statement must be included on the exterior of the final product which indicates that the product includes a certified module. The label should state the following (or similar wording that conveys the same meaning): 

Contains IC: 8976C-BNRGM2SA and 8976C-BNRGM2SP 

or 

this product contains IC: 8976C-BNRGM2SA and 8976C-BNRGM2SP 

The OEM must include the following statements on the exterior of the final product unless the product is too small (e.g. less than 4 x 4 inches). 

## **7.3 CE certification** 

The BlueNRG-M2 module has been certified according to the following certification rules: 

- ETSI EN 300 328 V 2.2.2[(1)] 

- ETSI EN 301 489-17 V3.2.4[(2)] 

**DS13053** - **Rev 7** 

**page 16/31** 

**BlueNRG-M2 TYPE certification** 

- ETSI EN 301 489-1 V2.2.3[(3)] 

- EN 62368-1:2020/A11:2020[(4)] 

- EN 62311:2008 

_1. ETSI EN 300 328 V2.2.2 (2019-07): "Wideband transmission systems;Data transmission equipment operating in the 2,4 GHz band;Harmonized Standard for access to radio spectrum"._ 

_2. ETSI EN 301 489-17 V3.2.4 (2020-09): "ElectroMagnetic Compatibility (EMC)standard for radio equipment and services; Part 17: Specific conditions for Broadband Data Transmission Systems;Harmonised Standard for ElectroMagnetic Compatibility._ 

_3. ETSI EN 301 489-1 V2.2.3 (2019-11): "ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 1: Common technical requirements; Harmonised Standard for ElectroMagnetic Compatibility._ 

_4. EN 62368-1:2020/A11:2020: “Audio/video, information and communication technology equipment - Part 1: Safety requirements”._ 

The module is provided by CE marking: 

The module has obtained the RED certificate: 

- 0051-RED-0092 (BLUENRG-M2SA) 

- 0051-RED-0098 (BLUENRG-M2SP) 

Hereby, STMicroelectronics declares that the radio equipment type BLUENRG-M2 is in compliance with Directive 2014/53/EU. 

The full text of the EU declaration of conformity is available at the following internet address: https://www.st.com/en/wireless-connectivity/bluenrg-m2.html#documentation 

The certified module production firmware release is: 2.X 

For additional information please refer to: STMicroelectronics Via C. Olivetti 2, Agrate Brianza 20864 (ITALY). 

## **7.4** 

## **TYPE certification** 

The BlueNRG-M2 module has been tested according to following TYPE certification rules: 

- Type of specified radio equipment 

   - Radio equipment according to certification ordinance article 2-1-9 

- Sophisticated low power radio data communication system in 2.4 GHz band. 

- Class of emissions, assigned frequency, and antenna power 

   - F1D 2402 - 2480 MHz channel separation 2 MHz/40 channel, 0.005 W 

- Certification number: 

   - 006-000725 (BLUENRG-M2SA) 

   - 006-000726 (BLUENRG-M2SP) 

## **7.5** 

## **WPC ETA certificate** 

The BlueNRG-M2 module is registered for equipment type approval (ETA) with WPC India. 

- Registration No: ETA-SD-20190702736 BlueNRG-M2SP 

- Registration No: ETA-SD-20210805996 BlueNRG-M2SA 

## **7.6 SRRC certification** 

## **7.6.1** 

## **Modular approval** 

The BlueNRG-M2SA module complies with Chinese SRRC certification. 

- SRRC CMIIT ID: 2021DP1341 

**DS13053** - **Rev 7** 

**page 17/31** 

**BlueNRG-M2 Bluetooth certification** 

## **7.6.2 SRRC labeling instructions** 

When the BlueNRG-M2SA is intergrated into the final product, the OEM must ensure that the FCC labeling requirements are satisfied. A statement must be included on the exterior of the final product, which indicates the product includes a certified module. The label should state the following (or similar wording that conveys the same meaning): 

this product uses the SRRC approved radio modular. CMIIT ID: 2021DP1341. 

## **7.7** 

## **Bluetooth certification** 

The module with embedded stack and profile has been qualified in accordance with SIG qualification rules: 

- Declaration ID: D043965 

- Upgraded declaration ID: U053518 

- Qualified design ID: 160033 

- Product type: End Product 

- Core spec version: 5.2 

- Product description: Bluetooth low energy v5.2 module 

**DS13053** - **Rev 7** 

**page 18/31** 

**BlueNRG-M2 Package information** 

## **8 Package information** 

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK is an ST trademark. 

## **8.1 BLUENRG-M2SA package information** 

**Figure 8. BLUENRG-M2SA package outline** 

**DS13053** - **Rev 7** 

**page 19/31** 

**BlueNRG-M2 BLUENRG-M2SA package information** 

**Table 11. BLUENRG-M2SA mechanical data** 

|**Symbol**|**mm**<br>~~ee~~<br>ee<br>ee|**mm**<br>~~ee~~<br>ee<br>ee|**mm**<br>~~ee~~<br>ee<br>ee|
|---|---|---|---|
||**Min.**<br>~~es~~|**Typ.**<br>~~es~~<br>ee|**Max.**<br>~~es~~<br>ee|
|A|2.1|2.3<br>ee|2.5<br>ee|
|A1|0.7|0.8|0.9|
|A2|1.4|1.5|1.6|
|D||11.5||
|E||13.5||
|F||1||
|G||1.46||
|dia||0.7||
|Pad size X,Y (on bottom side)||0.6x1||
|e-pitch||1.27|tol.+/-0.025|



**Figure 9. BLUENRG-M2SA recommended footprint** 

**DS13053** - **Rev 7** 

**page 20/31** 

**BlueNRG-M2 BLUENRG-M2SP package information** 

## **8.2 BLUENRG-M2SP package information** 

**Figure 10. BLUENRG-M2SP package outline** 

**DS13053** - **Rev 7** 

**page 21/31** 

**BlueNRG-M2 BLUENRG-M2SP package information** 

**Table 12. BLUENRG-M2SP mechanical data** 

|**Symbol**|**mm**<br>~~ee~~<br>~~e~~eee|**mm**<br>~~ee~~<br>~~e~~eee|**mm**<br>~~ee~~<br>~~e~~eee|
|---|---|---|---|
||**Min.**<br>~~e~~e|**Typ.**<br>ee|**Max.**|
|A|2.1<br>~~e~~e|2.3<br> ee|2.5|
|A1|0.7|0.8|0.9|
|A2|1.4|1.5|1.6|
|D||11.5||
|E||13.5||
|F||1||
|G||1.46||
|dia||0.7||
|Pad size X,Y (on bottom side)||0.6x1||
|e-pitch||1.27|tol.+/-0.025|



**Figure 11. BLUENRG-M2SP recommended footprint** 

**DS13053** - **Rev 7** 

**page 22/31** 

**BlueNRG-M2** 

**BlueNRG-M2 packing information** 

## **8.3 BlueNRG-M2 packing information** 

**Figure 12. BlueNRG-M2 tape outline** 

**Figure 13. BlueNRG-M2 tape dimension outline** 

**DS13053** - **Rev 7** 

**page 23/31** 

**BlueNRG-M2 BlueNRG-M2 packing information** 

**Figure 14. BlueNRG-M2 reel outline** 

**Table 13. BlueNRG-M2 reel mechanical data** 

|**Dimensions**|**Reel**|**Reel**|
|---|---|---|
||**Min.**|**Max.**|
|A|328|332|
|B|1.5||
|C|12.8|13.5|
|D|20.2||
|G|24.4|26.4|
|N|100|103|
|T|26.4|30.4|



**DS13053** - **Rev 7** 

**page 24/31** 

**BlueNRG-M2 Traceability** 

## **9 Traceability** 

Each module is univocally identified by serial number stored in a 2D data matrix laser marked on the top side (shield) of the module itself. 

Each module bulk is identified by a bulk ID. 

Bulk ID and module 2D data matrix are linked by a reciprocal traceability link. The module 2D data matrix traces the lot number of any raw material used according to following rules: 

**Table 14. Traceability information** 

|**Letter**|**Meaning**|
|---|---|
|HA|Reserved|
|YWW|Year and week number|
|E|Reserved|
|LL|Lot sequence number|
|XX|Lot sub-sequence number|
|0000|Serial number|



**DS13053** - **Rev 7** 

**page 25/31** 

**BlueNRG-M2** 

## **Revision history** 

**Table 15. Document revision history** 

|**Date**|**Version**|**Changes**|
|---|---|---|
|26-Jun-2019|1|Initial release.|
|24-Jul-2019|2|Updated features in cover page,Figure 4. Pin connection for the BLUENRG-<br>M2SAandFigure 6. Reset circuitry.<br>AddedSection  8.3  BlueNRG-M2 packing information|
|13-Jan-2021|3|Updated cover image,Section  Features,Section  Description,<br>Section  1  General description,Table 10. Soldering profile,Section  7.3  CE<br>certification,Section  7.7  Bluetooth certification.<br>AddedSection  7.5  WPC ETA certificate.|
|04-Mar-2021|4|UpdatedSection  Features.<br>AddedSection  7.6  SRRC certification,Section  7.6.1  Modular approvaland<br>Section  7.6.2  SRRC labeling instructions.|
|19-Oct-2021|5|UpdatedSection  FeaturesandSection  7.3  CE certification.|
|28-Oct-2021|6|UpdatedTable 8. Pin connection.|
|10-Dec-2021|7|UpdatedSection  Features, andSection  7.5  WPC ETA certificate.|



**DS13053** - **Rev 7** 

**page 26/31** 

**BlueNRG-M2 Contents** 

## **Contents** 

|**1**|**General description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3**|**General description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3**|
|---|---|---|
|**2**|**Block**|**diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4**|
|**3**|**Software architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5**||
||**3.1**|Software development kit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5|
||**3.2**|Software structure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6|
|**4**|**General characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7**||
||**4.1**|Absolute maximum ratings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7|
||**4.2**|Operating conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7|
|**5**|**Electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8**||
||**5.1**|Electrical characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8|
||**5.2**|Digital I/O specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9|
||**5.3**|RF general characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10|
||**5.4**|Pin assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11|
|**6**|**Hardware design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13**||
||**6.1**|Reset circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13|
||**6.2**|Debug interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13|
||**6.3**|Reflow soldering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14|
|**7**|**Regulatory compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15**||
||**7.1**|FCC certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15|
|||**7.1.1**<br>Labeling instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15|
|||**7.1.2**<br>Product manual instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15|
||**7.2**|IC certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16|
|||**7.2.1**<br>Labeling instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16|
||**7.3**|CE certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16|
||**7.4**|TYPE certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17|
||**7.5**|WPC ETA certificate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17|
||**7.6**|SRRC certification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17|
|||**7.6.1**<br>Modular approval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17|
|||**7.6.2**<br>SRRC labeling instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18|



**DS13053** - **Rev 7** 

**page 27/31** 

**BlueNRG-M2 Contents** 

||**7.7**|Bluetooth certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18|
|---|---|---|
|**8**|**Package information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19**||
||**8.1**|BLUENRG-M2SA package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19|
||**8.2**|BLUENRG-M2SP package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21|
||**8.3**|BlueNRG-M2 packing information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23|
|**9**|**Traceability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25**||
|**Revision**||**history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26**|



**DS13053** - **Rev 7** 

**page 28/31** 

**BlueNRG-M2 List of tables** 

## **List of tables** 

|**Table**|**1.**|Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7|
|---|---|---|
|**Table**|**2.**|Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7|
|**Table**|**3.**|Electrical characteristics for the BLUENRG-M2SA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8|
|**Table**|**4.**|Electrical characteristics for the BLUENRG-M2SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8|
|**Table**|**5.**|RF general characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10|
|**Table**|**6.**|BLUENRG-M2SA RF characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10|
|**Table**|**7.**|BLUENRG-M2SP RF characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10|
|**Table**|**8.**|Pin connection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12|
|**Table**|**9.**|Debug interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13|
|**Table**|**10.**|Soldering profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14|
|**Table**|**11.**|BLUENRG-M2SA mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20|
|**Table**|**12.**|BLUENRG-M2SP mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22|
|**Table**|**13.**|BlueNRG-M2 reel mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24|
|**Table**|**14.**|Traceability information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25|
|**Table**|**15.**|Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26|



**DS13053** - **Rev 7** 

**page 29/31** 

**BlueNRG-M2 List of figures** 

## **List of figures** 

|**Figure**|**1.**|HW block diagram for the BlueNRG-M2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4|
|---|---|---|
|**Figure**|**2.**|BlueNRG-M2 - BLE application processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6|
|**Figure**|**3.**|BlueNRG-M2 as BLE network processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6|
|**Figure**|**4.**|Pin connection for the BLUENRG-M2SA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11|
|**Figure**|**5.**|Pin connection for the BLUENRG-M2SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11|
|**Figure**|**6.**|Reset circuitry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13|
|**Figure**|**7.**|Soldering profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14|
|**Figure**|**8.**|BLUENRG-M2SA package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19|
|**Figure**|**9.**|BLUENRG-M2SA recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20|
|**Figure**|**10.**|BLUENRG-M2SP package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21|
|**Figure**|**11.**|BLUENRG-M2SP recommended footprint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22|
|**Figure**|**12.**|BlueNRG-M2 tape outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23|
|**Figure**|**13.**|BlueNRG-M2 tape dimension outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23|
|**Figure**|**14.**|BlueNRG-M2 reel outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24|



**DS13053** - **Rev 7** 

**page 30/31** 

**BlueNRG-M2** 

## **IMPORTANT NOTICE – PLEASE READ CAREFULLY** 

STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement. 

Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of Purchasers’ products. 

No license, express or implied, to any intellectual property right is granted by ST herein. 

Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. 

ST and the ST logo are trademarks of ST. For additional information about ST trademarks, please refer to www.st.com/trademarks. All other product or service names are the property of their respective owners. 

Information in this document supersedes and replaces information previously supplied in any prior versions of this document. 

© 2021 STMicroelectronics – All rights reserved 

**DS13053** - **Rev 7** 

**page 31/31**