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STMicroelectronics — STM32WBA2x Wireless Microcontrollers with Bluetooth LE, Zigbee and Thread

 

STMicroelectronics

STMicroelectronics STM32WBA2x Microcontrollers

Cost-optimized wireless MCUs enabling secure, low-power multi-protocol connectivity for next-generation IoT designs

The STM32WBA2x series from STMicroelectronics delivers an affordable, highly integrated wireless MCU solution supporting the latest short-range communication protocols. Designed for cost- and energy-sensitive applications, it combines strong RF performance, built-in security, and a compact footprint.

Powered by a 64 MHz Arm Cortex-M33 with TrustZone, the STM32WBA2x integrates ample memory and advanced connectivity features while maintaining low power consumption. Its flexible design and pin-to-pin compatibility with STM32WBA5 series devices allow seamless cost optimization and scalability across product generations.

Key Features & Benefits

  • Efficient and Reliable Wireless Performance
  • Multi-protocol support including Bluetooth LE, Zigbee, and Thread
  • Strong RF link with up to +10 dBm output power
  • High receiver sensitivity for stable communication
  • Adjustable transmit power for optimized energy usage
  • Ultra-low-power architecture extends battery life
  • Cost-Optimized and Flexible Design
  • One of the most affordable STM32 wireless MCU options
  • Rich feature set at an optimized price point
  • Supports simplified 2-layer PCB designs
  • Pin-to-pin compatibility with STM32WBA5 series for easy upgrades
  • Accelerated Development
  • Backed by the STM32Cube ecosystem
  • Extensive tools, software, and documentation
  • Proven technical support and design resources
  • RF reference designs for faster implementation
  • External PA support for higher output power when needed
  • Advanced Security and Compliance
  • SESIP3-level security for IP protection and data privacy
  • Supports secure firmware updates
  • Compliant with global standards including RED, CRA, and US regulations

Applications

  • Smart Industry
  • Industrial automation and wireless monitoring
  • Asset tracking and predictive maintenance
  • Smart Home
  • Connected devices and home automation systems
  • Secure, low-power wireless control
  • Medical and Healthcare
  • Wearable devices and remote patient monitoring
  • Reliable, low-energy connectivity for sensitive applications
  • Consumer Electronics
  • Smart devices with wireless connectivity
  • Portable and battery-powered applications

STMicroelectronics – Software: STM32Cube firmware package

STMicroelectronics_STM32WBA2x low-power wireless MCU

STM32WBA2x Portfolio & Block Diagram

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STM32WBA2x Portfolio

Discover STM32WBA Portfolio↗

Block Diagram

Hardware

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Nucleo-64 Board NUCLEO-WBA25CE1
Start prototyping faster

Speed up wireless development with the STM32 Nucleo-64 board featuring Arduino/Morpho headers, 27 GPIOs, and an RF-certified QFP48 design.

Download databrief ↗
Expansion Board X-NUCLEO-WBA25A1
Expand your wireless capabilities

Accelerate testing with the Nucleo expansion board supporting Arduino UNO R3, oscillators, and an RF-certified layout for Bluetooth LE and IEEE 802.15.4 evaluation.

Download databrief ↗