The STM32WBA2x is the most affordable STM32 wireless MCU supporting the latest protocols (Bluetooth® LE*, IEEE 802.15.4 communication protocols, Zigbee®, and Thread). It delivers a rich feature set in a compact, energy-efficient design, ideal for cost- and energy-sensitive wireless applications.
The line offers a 64 MHz Arm Cortex®-M33 CPU with TrustZone®, 512 Kbytes of flash memory, 96 Kbytes of RAM, and is available in three packages: 32-pin and 48-pin UFQFPN, and 37-pin WLCSP.
It also provides pin-to-pin compatibility with the STM32WBA55Cx (UFQFPN 48 package) and STM32WBA52Kx & STM32WBA54Kx microcontrollers (UFQFPN 32 package), enabling straightforward product cost optimization across generations.
With best-in-class +10 dBm output power, support for USB full-speed, and a Q-SPI interface with on-the-fly decryption, the STM32WBA2x offers exceptional value and flexibility for a wide range of short-range wireless applications.
Compliant with RED, CRA and US Security standards, these MCUs meet stringent regulatory requirements, ensuring global applicability.
A rich ecosystem including hardware, embedded software, software tools, and documentation, helps you quickly kick-start your wireless application design.
* LE Coded, LE 2M, Extended Advertising, LE 2M, PAwR, LE power control
Applications
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NUCLEO-WBA25CE1
X-NUCLEO-WBA25A1
STM32Cube firmware package
Benefits
Robust wireless connectivity with extended battery life
- Reliable radio link with +10 dBm max output power and –96 dBm Rx sensitivity at 1Mbps
- Supporting Bluetooth® LE, Zigbee, Thread protocols
- Programmable Tx power in 1 dB steps for increased radio power efficiency
- Leveraging ultra-low-power STM32 MCU architecture to increase battery lifetime
Cost-effective and flexible product design
- Most affordable STM32 wireless MCU supporting Bluetooth® LE and IEEE 802.15.4-based protocols.
- Optimal price point ensuring highest value thanks to its generous feature set
- Supports 2-layer PCB designs to reduce BOM and simplify circuitry.
- Pin-to-pin compatibility with STM32WBA5
Faster, streamlined development with comprehensive STM32 ecosystem
- STM32Cube framework with dedicated hardware, embedded software, and tools.
- Recognized technical support with extensive documentation and specialized wiki articles.
- Recognized technical support
- RF reference designs and IPD chip for easy impedance matching.
- External PA support to boost Tx output power up to +20 dBm.
Strong security for regulatory compliance
- Safeguard your IP and enhance privacy with SESIP3-compliant devices
- Ready for international security regulations, including RED, CRA, and US CyberAct.
- Secure firmware update capability.
