STM32WB5MMG Wireless Module supports Bluetooth LE, Zigbee, OpenThread, and More

21 January, 2021

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STMicroelectronics has introduced their first STM32-based wireless module designed to accelerate the market introduction of new Bluetooth® LE and 802.15.4 based IoT devices: the STM32WB5MMG.

The compact and ultra-low-power STM32WB5MMG is:

“a complete ready-to-use subsystem in a single package; the STM32WB5MMG assures excellent radio performance out of the box and comes as a certified solution according to Bluetooth, Zigbee, and OpenThread specifications.”

said the company’s Group Vice President, Microcontroller Division.

The STM32-based module aims to reduce design complexities like tuning the antenna and optimizing the RF, thus allowing quicker implementation into customer designs. It has a good receiver sensitivity and a high output power that guarantees a best-in-class RF performance, and also supports BLE 5.0, Zigbee 3.0, OpenThread, 802.15.4 proprietary protocols and even static and dynamic concurrent modes.

Features and Specifications of the STM32WB5MMG wireless module include:

Arm® Cortex®-M4 CPU with FPU and ART; up to 64 MHz speed
Arm® Cortex®-M0+ for radio and security tasks; up to 32MHz speed
1 Mbyte Flash memory
256 Kbyte SRAM
Supports 2 Mbits/s
Fully integrated BOM, including 32 MHz radio and 32 kHz RTC crystals
Integrated SMPS
Two layers PCB compatible, using external raw pins only.
Up to 68x GPIOs
2x ULP Comparators
Integrated IPD for reliable antenna matching
Ultra-low-power modes for battery longevity
Two watchdog timers
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
1.8 V to 3.6 V VDD range
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
Security features: 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
Dimensions: 7 mm x 11.3 mm
Temperature Range: -40 ºC to 85 ºC
Certifications: CE, FCC, IC, JRF, SRRC, RoHS, GOST, KC, NCC, REACH

The STM32WB5MMG is suitable for a number of applications like home automation, smart locks, wireless audio devices, and healthcare personal trackers. Its ultra-low-power feature means an “extended battery lifetime, small coin-cell batteries or energy harvesting.”

The wireless module is expected to be a solution to common cost and design complexities, so the company is also making plans for an STM32WB55MMG-DK board which will include an external memory, LCD, sensors, and more features that will help developers explore all the functionalities of the module.