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The STM32WB5MMG is an ultra-low-power and small form factor certified 2.4GHz wireless module. It supports Bluetooth® Low Energy 5.0, Zigbee® 3.0, OpenThread, dynamic and static concurrent modes, and 802.15.4 proprietary protocols. Based on STMicroelectronics STM32WB55VGY wireless microcontroller, the STM32WB5MMG provides best-in-class RF performance thanks to its good receiver sensitivity and a high output power signal. Its low-power features enable extended battery life time, small coin-cell batteries or energy harvesting.
The STM32WB5MMG requires no RF expertise and is the best way to speed-up any development and to reduce associated costs. The module is completely protocol stack royalty-free.
Key Features
- Integrated chip antenna
- Bluetooth® Low Energy 5.0, Zigbee® 3.0, OpenThread certified
- Dynamic and static concurrent modes
- IEEE 802.15.4-2011 MAC PHY
- Supports 2 Mbits/s
- TX output power up to +6 dBm
- RX sensitivity: -96 dBm (Bluetooth® Low Energy at 1 Mbps), -100 dBm (802.15.4)
- Range: up to 75 meters
- Dedicated Arm® Cortex®-M0+ for radio and security tasks
- Dedicated Arm® Cortex®-M4 CPU with FPU and ART (adaptive real-time accelerator) up to 64 MHz speed
- 1-Mbyte Flash memory, 256-Kbyte SRAM
- Fully integrated BOM, including 32 MHz radio and 32 KHz RTC crystals
- Integrated SMPS
- Ultra-low-power modes for battery longevity
- 68 GPIOs
- Integrated IPD for best-in-class and reliable antenna matching
- 1.8 V to 3.6 V VDD range
- -40 ºC to 85 ºC temperature range
- Built-in security features such as: secure firmware installation (SFI) for radio stack, customer key storage/key management services, PKA, AES 256-bit, TRNG, PCROP, CRC, 96-bit UID, possibility to derive 802.15.4 and Bluetooth® Low Energy 48-bit UEI
- Certifications: CE, FCC, IC, JRF, SRRC, RoHS, REACH, GOST, KC, NCC
- Two layers PCB compatible (using external raw pins only)
Circuit Diagram

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Recommended resources
AN5289 - Building wireless applications with STM32WB Series microcontrollers
Download PDFAN5492 - Persistent data management ZigBee® and non-volatile memory in STM32WB Series
Download PDFAN5247 - Over-the-air application and wireless firmware update for STM32WB Series microcontrollers
Download PDFAN5129 - Low cost PCB antenna for 2.4GHz radio: meander design for STM32WB Series
Download PDFAll resources
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