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STMicroelectronics STM32WBA Series Microcontrollers (MCUs)

STM32WBA 32-bit MCU Wireless Series, Bluetooth® Low Energy 5.3 +10dBm, High Security Level

The STM32WBA 32-bit Wireless series brings designers the performance, efficiency, and security required for Bluetooth® Low Energy 5.3-enabled applications.

Based on the Arm® Cortex®-M33 core running at 100 MHz with TrustZone® technology, the STM32WBA series provides a high level of security, protecting data, IPs, and preventing hacks or device cloning.

Focusing on the Bluetooth® Low Energy 5.3 protocol, the STM32WBA series allows non-expert developers to easily add wireless communication to their device at an affordable cost.

Leveraging the STM32U5 architecture, the STM32WBA series is an ultra-low power platform and offers inherited digital and analog peripherals, suitable for many applications, from industrial, to smart home and consumer markets.

The STM32WBA wireless MCU embeds large memory to sustain both applications and connectivity activities, coming with up to 1 Mbytes of flash memory and 128 Kbytes of RAM. A smart set of peripherals like ADC, touch sensing, times, make this product a self-sufficient application wireless MCU.

The STM32WBA targets PSA Certified Level 3 and SESIP 3 IoT security standards. Security is at the heart of many applications, protecting data for safe resource monitoring and anti-hacking, like in medical and industrial fields, including predictive maintenance applications or device fleet management. Thanks to the Arm® Cortex®-M33 core with Arm® TrustZone® technology, the STM32WBA5 isolates and protects code and IPs whenever required using isolation capability and TF-M library included in the product ecosystem. The 2.4 GHz wireless STM32WBA series provides an integrated solution to help developers streamline their design journey, while addressing market requirements.

Key Features

  • High data rate (2 Mbits/sec) to ensure fast and reliable data transfer
  • Long range (500 Kbits/sec and 125 Kbits /sec data rate)capability to enlarge communication range
  • High output power to increase communication range thanks to +10 dBm of output power
  • Low-power messaging capability to extend battery lifetime
  • Support for latest protocol
  • Enhanced security
  • Reduce bill of materials


  • Industrial
  • Smart home
  • IoT for Smart Things
  • Power tools
  • Wellness
  • Fitness
  • Medical


  • Simplify your platform using a wireless application MCU processor
  • Create innovative device based on Bluetooth® Low Energy 5.3 technology capabilities
  • Extend far end communications range thanks to +10 dBm output power
  • Increase battery life with the advertising extension for device communication
  • Ensure fast and reliable data transfer
  • Make efficient application processing based on 407 CoreMark score
  • Protects your IP and increase privacy protection based on SESIP3 device capability
  • Fasten time-to market relying on market proven STM32Cube ecosystem


STM32WBA Block Diagram

STM32WBA portfolio

STMicroelectronics — STM32WBA portfolio


NUCLEO-WBA52CG: STM32 Nucleo-64 Dev-Board

Using STM32WBA52CG MCU, NUCLEO-WBA52CG is a Bluetooth® Low Energy wireless and ultra-low-power board embedding a powerful and ultra-low-power radio compliant with the Bluetooth® Low Energy SIG specification v5.3.

The ARDUINO® Uno V3 connectivity support and the ST morpho headers allow the easy expansion of the functionality of the STM32 Nucleo open development platform with a wide choice of specialized shields.

STMicroelectronics — NUCLEO-WBA52CG Board
STM32WBA Nucleo-64 Board User Manual

List of available products:

  • MB1801 Mezzanine Board
  • MB1863 MCU RF Board