The STM32WBA MCU series brings designers performance, efficiency, and flexibility. It embeds large memory to support both applications and connectivity activities, offering up to 2 Mbytes of flash and up to 512 Kbytes of RAM. A smart set of peripherals such as ADC, touch sensing, timers, makes this series a self-sufficient wireless application MCU.
Key benefits include:
- High data rate to ensure fast and reliable data transfer
- Multi-protocol flexibility (Bluetooth® LE*, IEEE 802.15.4 communication protocols, Zigbee®, Thread, Matter and Aliro)
- Long range capability for extended communication distance
- High output power (+10 dBm) to further increase communication range
- Low-power messaging capability to extend battery lifetime
Based on Arm® Cortex®-M33 core running at 100 MHz with TrustZone® technology, the STM32WBA series provides a high level of security, protecting data, IPs, and helping prevent hacking or device cloning.
* LE Coded, LE 2M, extended advertising, LE Audio, direction finding
Discover our product types
| STM32WBA2x | STM32WBA5x | STM32WBA6x | |
| CPU | Cortex®-M33 @ 64MHz | Cortex®-M33 @ 100MHz | Cortex®-M33 @ 100MHz |
| Flash size | 512 kB | Up to 1 MB | Up to 2 MB |
| RAM size | 96 kB | Up to 128 kB | Up to 512 kB |
| Protocols | Bluetooth® LE Zigbee 3.0 OpenThread 1.4 | Bluetooth® LE Zigbee 3.0 OpenThread 1.4 | Bluetooth® LE Zigbee 3.0 OpenThread 1.4 Matter 1.5 |
| USB | USB2.0 Full Speed | None | USB2.0 High Speed |
| Connectivity | 1x QSPI, 1x SPI, 2x I²C, 1x UART, 1x LPUART, 1x SAI | 2x SPI, 2x I²C, 3x UART, 1x SAI | 3x SPI, 4x I²C, 4x UART, 1x SAI |
Benefits
Enhanced wireless performance
- Multiple protocols supported (Bluetooth® LE including audio, IEEE 802.15.4 communication protocols, Zigbee®, Thread and Matter)
- Best-in-class +10 dBm Tx output power
Improved efficiency
- Increase battery life with the advertising extension for efficient device communication
- Ensure fast and reliable data transfer for seamless connectivity
Advanced security
- Protect your IP and increase privacy protection based on SESIP3 and Arm PSA L3 device capability (compliant with the current regulation)
- Ready for international security regulations, including RED, CRA, and US CyberAct
Faster time-to-market
- Accelerate your time-to-market by leveraging the market-proven STM32Cube ecosystem
- Extensive documentation, RF reference designs, and specialized wiki articles
Discover our STM32WBA series comprehensive ecosystem
Evaluation tools
Discovery kits, Nucleo boards, Connectivity expansion board
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Software
STM32Cube firmware package
