STM32WB55RGV6
Overview
The STM32WB55RGV6 is a dual-core multiprotocol wireless microcontroller that integrates an Arm Cortex-M4 for application processing and a Cortex-M0+ for managing the radio stack. It supports Bluetooth 5.3, Zigbee, and Thread concurrently, providing a high level of integration for secure, low-power wireless connectivity. This variant features 1MB of Flash memory and 256kB of SRAM in a compact 68-pin VFQFPN package.
Why Choose This Part
The dual-core architecture ensures real-time radio performance is never compromised by application-level processing. It includes specialized security features such as an AES 256-bit hardware accelerator and public key accelerator (PKA) to protect wireless communication.
Applications
Key Specifications
Getting Started
Development is supported by the STM32CubeWB firmware package and the STM32CubeIDE ecosystem. For hardware evaluation, the P-NUCLEO-WB55 pack is the standard starting point, providing a USB dongle and a Nucleo-64 board for testing Bluetooth and 802.15.4 protocols.
STM32WB55 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | GPIO | Package | Stock |
|---|---|---|---|
| STM32WB55RGV6 (this part) | 49 | VFQFN-68 | 9,713 |
| STM32WB55CGU6 | 30 | UFQFN-48 | 16,017 |



