Wireless MCU supports Bluetooth, Zigbee, Thread and Matter in a single chip
The new STM32WBA6 series from STMicroelectronics with embedded 2.4GHz radio provides a convenient, low-power way to implement wireless applications for smart home, health, factory, and agriculture equipment.
STMicroelectronics has extended the STM32 family of power-efficient, short-range wireless microcontrollers, introducing the multi-protocol STM32WBA6 series for consumer and industrial equipment.
Featuring more Flash and RAM memory on-chip than the previous STM32WBA5 series, the new MCUs provide generous storage capacity for application code and data. The STM32WBA6 also offers more digital interfaces, including USB High Speed alongside three SPI ports, 14 GPIOs, four I2C ports, three USART interfaces, and one LPUART interface.
The wireless subsystem in the top-of-the-range STM32WBA64/65 MCUs supports Bluetooth® Low Energy, Zigbee, Thread, Matter and other protocols operating in the 2.4GHz frequency band, and allows communication using multiple protocols concurrently. A typical use case is a smart home bridge which can communicate with a resident’s mobile app over a Bluetooth® link and simultaneously manage lights or thermostats through a Zigbee mesh network. The MCUs are supported by the X-CUBE-MATTER software package, which provides a Matter software development kit and application examples to ease development.
The STM32WBA6 series also contains single-protocol variants for simpler and more cost-conscious applications.
All the STM32WBA6 MCUs are based on an Arm® Cortex®-M33 CPU core, with floating-point unit and DSP extensions, running at up to 100MHz.
The MCUs feature hardware security features which enable host systems to be certified to SESIP Level 3 and PSA Level 3. These include cryptographic accelerators, TrustZone® isolation, and a random number generator. These features also enable both the STM32WBA5 and STM32WBA6 series MCUs to meet the requirements of the latest EU Radio Equipment Directive (RED) cybersecurity regulation.