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STM32WB55CGU6

STM32WB55CGU6

STMicroelectronics
Dual-core STM32 wireless MCU family supporting Bluetooth 5 and 802.15.4 stacks as an alternative wireless MCU platform.
Active16,017 in stock
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Overview

The STM32WB55CGU6 is a dual-core wireless microcontroller from STMicroelectronics, integrating an Arm Cortex-M4 for application processing and an Arm Cortex-M0+ for real-time radio operations. It supports Bluetooth 5.3, Thread, and Zigbee protocols, making it suitable for a wide range of IoT and smart device applications. Its ultra-low-power modes and integrated features enable efficient operation in battery-powered designs.

Why Choose This Part

This MCU offers a powerful dual-core architecture with a Cortex-M4 for application logic and a dedicated Cortex-M0+ for the radio stack, ensuring efficient and reliable wireless communication. It includes comprehensive low-power modes, down to 0.013uA in shutdown, extending battery life significantly. The integrated SMPS, balun, and memory protection unit (MPU) simplify board design and enhance system robustness.

Applications

Smart Home Devices
Ideal for smart lighting, thermostats, and security sensors that require Bluetooth, Thread, or Zigbee connectivity with low power consumption.
Wearable Electronics
Suitable for fitness trackers, smartwatches, and other portable devices benefiting from its dual-core architecture and extensive power-saving features.
Industrial IoT Sensors
Enables connected sensors for industrial monitoring, leveraging robust wireless communication and efficient processing capabilities.
Medical Devices
Used in various medical and healthcare applications requiring secure, low-power wireless data transfer and reliable operation.
Asset Tracking
Its integrated wireless protocols and low-power modes are beneficial for battery-operated asset tracking solutions.

Key Specifications

GPIO 30
Type TxRx + MCU
Protocol Bluetooth v5.3, Thread, Zigbee
Frequency 2.405GHz ~ 2.48GHz
Modulation GFSK
Memory Size 1MB Flash, 256kB SRAM
Sensitivity -100dBm
Mounting Type Surface Mount
Package / Case 48-UFQFN Exposed Pad
Power - Output 6dBm
Data Rate (Max) 2Mbps
Voltage - Supply 1.71V ~ 3.6V
Serial Interfaces ADC, I2C, SPI, UART, USART, USB
RF Family/Standard 802.15.4, Bluetooth
Current - Receiving 4.5mA ~ 7.9mA
Operating Temperature -40degC ~ 85degC (TA)
Current - Transmitting 5.2mA ~ 12.7mA
Supplier Device Package 48-UFQFPN (7x7)

Getting Started

STMicroelectronics provides the STM32Cube ecosystem, including the STM32CubeIDE for development and STM32CubeMX for configuration. Evaluation boards like the NUCLEO-WB55RG or P-NUCLEO-WB55 offer a quick start for development. Developers can also utilize the extensive examples and libraries available for Bluetooth, Thread, and Zigbee stacks.

STM32WB55 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number GPIO Package Stock
STM32WB55CGU6 (this part) 30 UFQFN-48 16,017
STM32WB55RGV6 49 VFQFN-68 9,713
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