STM32WB55CEU6TR Overview
The STM32WB55CEU6TR is a high-performance dual-core wireless microcontroller designed for advanced industrial and consumer applications. Integrating an Arm Cortex-M4 core running at 64 MHz alongside a dedicated Cortex-M0+ core for radio management, it offers efficient processing and robust wireless communication capabilities. With embedded Bluetooth 5.0 and IEEE 802.15.4 protocols, this device enables reliable, low-power connectivity in compact form factors. The 512 KB flash memory and 256 KB RAM support complex firmware and multitasking, while multiple peripherals ensure flexible interfacing. Designed by IC Manufacturer, it addresses the growing demand for integrated wireless solutions in IoT, smart home, and industrial automation sectors.
STM32WB55CEU6TR Technical Specifications
| Parameter | Specification |
|---|---|
| Core 1 | Arm Cortex-M4, 64 MHz |
| Core 2 | Arm Cortex-M0+ for radio |
| Flash Memory | 512 KB |
| RAM | 256 KB |
| Wireless Protocols | Bluetooth 5.0, IEEE 802.15.4 |
| Operating Voltage | 1.7 V to 3.6 V |
| Package Type | UFBGA73, 7×7 mm |
| Operating Temperature Range | -40??C to +85??C |
| GPIO Pins | Up to 32 |
| Security Features | True random number generator, AES-128 encryption |
STM32WB55CEU6TR Key Features
- Dual-core architecture: Separates application processing and radio communication, enhancing performance and reducing latency for wireless tasks.
- Bluetooth 5.0 and IEEE 802.15.4 support: Enables versatile wireless connectivity suitable for mesh networking and low-energy applications.
- Large embedded memory: 512 KB flash and 256 KB RAM provide ample space for complex firmware and over-the-air updates.
- Low power consumption: Optimized for energy-efficient operation, extending battery life in portable and IoT devices.
- Advanced security: Integrated cryptographic hardware accelerators and true random number generator safeguard communication and data.
- Rich peripheral set: Includes USART, SPI, I2C, timers, ADC, DAC, and capacitive sensing for flexible application development.
- Compact 7×7 mm UFBGA package: Saves PCB space while supporting up to 32 GPIOs for versatile interfacing.
Typical Applications
- Wireless Industrial Automation: Enables secure and reliable sensor networks and control nodes with robust Bluetooth 5.0 and IEEE 802.15.4 wireless protocols.
- Smart Home Devices: Integrates multi-protocol connectivity for smart lighting, locks, and environmental monitoring systems requiring low power and secure communication.
- Wearable Electronics: Supports compact, battery-efficient devices such as fitness trackers and health monitors with advanced processing and wireless features.
- IoT Sensor Nodes: Facilitates data acquisition and wireless transmission in distributed sensor networks for agriculture, logistics, and asset tracking.
STM32WB55CEU6TR Advantages vs Typical Alternatives
This microcontroller’s dual-core design provides superior task separation for application and radio processing, enhancing responsiveness and power efficiency compared to single-core alternatives. Its integrated Bluetooth 5.0 and IEEE 802.15.4 support deliver flexible wireless options without the need for external modules. The combination of significant embedded memory and advanced security features ensures reliable, secure operation in demanding industrial and consumer environments.
🔥 Best-Selling Products

Texas Instruments BQ24075 Linear Battery Charger IC – 5mm x 4mm QFN Package

Texas Instruments INA219 Current Sensor Module – SOIC Package, Precision Monitoring

Texas Instruments LM4041 Precision Voltage Reference – SOT-23 Package

Texas Instruments OPA2134 Audio Op Amp – Dual, High-Performance, SOIC-8 Package
STM32WB55CEU6TR Brand Info
The STM32WB55CEU6TR is part of the STM32WB series from STMicroelectronics, a leading semiconductor manufacturer recognized for its comprehensive portfolio of microcontrollers and wireless solutions. The STM32WB line is specifically engineered to meet the demands of wireless IoT applications, combining high-performance processing cores with integrated Bluetooth Low Energy and IEEE 802.15.4 radios. STMicroelectronics emphasizes energy efficiency, security, and scalability in this family, enabling developers to create connected smart devices with ease and reliability.





