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Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 30
Technical content
Datasheet sections
- 1 General description
- 2 Block diagram
- 3 Software architecture
- 3.1 Software development kit
- 3.2 Software structure
- 4 General characteristics
- 4.1 Absolute maximum ratings
- 4.2 Operating conditions
- 5 Electrical specifications
- 5.1 Electrical characteristics
- 5.2 Digital I/O specifications
- 5.3 RF general characteristics
- 5.4 Pin assignment
- 6 Hardware design
- 6.1 Reset circuitry
- 6.2 Debug interface
- 6.3 Reflow soldering
- 7 Regulatory compliance
- 7.1 FCC certification
- 7.1.1 Labeling instructions
- 7.1.2 Product manual instructions
- 7.2 IC certification
- 7.2.1 Labeling instructions
- 7.3 CE certification
- 7.4 TYPE certification
- 7.5 Bluetooth certification
- 8 Package information
- 8.1 BLUENRG-M2SA package information
- 8.2 BLUENRG-M2SP package information
Datasheet sections
- 8.3 BlueNRG-M2 packing information
- 9 Traceability
Features
- Bluetooth v5.0 compliant – Supports master and slave modes – 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 2C, 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)
- 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
- 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
- Security and proximity
- Assisted living
- PC and smart phone peripherals Product status link BlueNRG-M2 Product label Very low power application processor module for Bluetooth® low energy v5.0 BlueNRG-M2 Datasheet DS13053 - Rev 2 - July 2019 For further information contact your local STMicroelectronics sales office.
Description
The BlueNRG-M2 is a Bluetooth® low energy system-on-chip application processor certified module, compliant with BT specifications v5.0 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. BlueNRG-M2 DS13053 - Rev 2 page 2/30
1 General description
The BlueNRG-M2 is a Bluetooth low energy application processor modules compliant with Bluetooth® v5.0. 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 I2C 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. BlueNRG-M2 General description DS13053 - Rev 2 page 3/30
2 Block diagram
Figure 1. HW block diagram for the BlueNRG-M2
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
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 BlueNRG-M2 Software architecture DS13053 - Rev 2 page 5/30
4 General characteristics
4.1 Absolute maximum ratings
Table 1. Absolute maximum ratings
4.2 Operating conditions
Table 2. Operating conditions
5 Electrical specifications
5.1 Electrical characteristics
referred to VIN= 3.3 V, 25 °C, SMPS on, XO 32 kHz and 32 MHz. Table 3. Electrical characteristics for the BLUENRG-M2SA referred to VIN= 3.3 V, 25 °C, SMPS off, RO 32 kHz and 32 MHz.
Table 4. Electrical characteristics for the BLUENRG-M2SP
5.2 Digital I/O specifications
digital I/O specifications, please refer directly to the BlueNRG-2 datasheet available on www.st.com.
5.3 RF general characteristics
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 Table 6. BLUENRG-M2SA RF characteristics
- PA-Level set to 0x07 and En-High_Power set to 0x01 (corresponding to +8 dBm in conducted mode).
- Radiated power may be impacted by application board / housing / etc.
Table 7. BLUENRG-M2SP RF characteristics
- PA-Level set to 0x07 and En-High_Power set to 0x01 (corresponding to +8dBm in conducted mode).
- Radiated power may be impacted by application board / housing / etc.
5.4 Pin assignment
Figure 4. Pin connection for the BLUENRG-M2SA Figure 5. Pin connection for the BLUENRG-M2SP
Table 8. Pin connection
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
- The pin DIO7/BOOT is monitored by bootloader after power-up or hardware reset and it should be low to prevent unwanted
- The function SPI_IN indicates that the pin is always an input when configured for SPI. Thus in case of SPI master role, it
- 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.
- DI012 can only be general purpose input pins (not output), or I2C1 clock pin.
6 Hardware design
- 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
"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
Table 9. Debug interface For more information refer to the BlueNRG-2 technical documentation (https://www.st.com).
6.3 Reflow soldering
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 Average ramp up rate (TSMAX to Tp) 3°C/ s max. Time from 25 °C to peak temperature 8 minutes max. Figure 7. Soldering profiles
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: 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 BlueNRG-M2 Regulatory compliance DS13053 - Rev 2 page 15/30
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:
- EN 300 328 V 2.1.1 (2016-11) (1)
- ETSI EN 301 489-17 V3.1.1 (2017-02) (2)
- ETSI EN 301 489-1 V2.1.1 (2017-02) (3)
- EN 60950-1:2006 + A11:2009 + A1:2010 + A12:2011 + A2:2013 (4)
- EN 62311:2008 BlueNRG-M2 IC certification DS13053 - Rev 2 page 16/30
- ETSI EN 300 328 V 2.1.1 (2016 11): “electromagnetic compatibility and radio spectrum Matters (ERM); Wideband transmission systems; data transmission equipment operating in the 2.4 GHZ ISM band and using wideband modulation techniques; harmonized EN covering essential requirements under article 3.2 of the R&TTE directive”. 2. ETSI EN 301 489-17 V 3.1.1 (2017 02): “electromagnetic compatibility and radio spectrum matters (ERM); electromagnetic compatibility (EMC) standard for radio equipment and services; part 17: specific condition for 2.4 GHz wideband transmission systems and 5 GHz high performance RLAN equipment”. 3. ETSI EN 301 489-1 V2.1.1 (2017 02): “electromagnetic compatibility and radio spectrum matters (ERM); electromagnetic compatibility (EMC) standard for radio equipment and services; part 1: common technical requirements. 4. EN60950-1:2006 +A11:2009+A1:2010+A12:2011+A2:2013: “Information technology equipment - safety The module is provided by CE marking: The module has obtained the RED certificate:
- 0051-RED-0092 (BLUENRG-M2SA)
- 0051-RED-0098 (BLUENRG-M2SP) The Certificate of Conformity is available / downloadable at the following web page: www.ST.com. 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 Bluetooth certification
The module with embedded stack and profile has been qualified in accordance with SIG qualification rules:
- Declaration ID: D043965
- Qualified design ID: 121363
- Product type: End Product
- Core spec version: 5.0
- Product description: Bluetooth low energy v5.0 module BlueNRG-M2 TYPE certification DS13053 - Rev 2 page 17/30
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
Package information
DS13053 - Rev 2 page 18/30
Table 11. BLUENRG-M2SA mechanical data Figure 9. BLUENRG-M2SA recommended footprint
8.2 BLUENRG-M2SP package information
Figure 10. BLUENRG-M2SP package outline
Table 12. BLUENRG-M2SP mechanical data Figure 11. BLUENRG-M2SP recommended footprint
8.3 BlueNRG-M2 packing information
Figure 12. BlueNRG-M2 tape outline Figure 13. BlueNRG-M2 tape dimension outline
Figure 14. BlueNRG-M2 reel outline Table 13. BlueNRG-M2 reel mechanical data
9 Traceability
(shield) of the module itself. Each module bulk is identified by a bulk ID. Table 14. Traceability information
0000 Serial number
Revision history
Table 15. Document revision history 26-Jun-2019 1 Initial release. M2SA and Figure 6. Reset circuitry.