Overview
The STM32WB55CCU6TR is a multiprotocol wireless and ultra-low-power microcontroller unit (MCU) developed by STMicroelectronics. This device is part of the STM32WB55xx series and features a dual-core architecture with an Arm Cortex-M4 core operating at up to 64 MHz and an Arm Cortex-M0+ core at 32 MHz. The Cortex-M4 core includes a Floating Point Unit (FPU) and supports all Arm single-precision data-processing instructions and data types, along with a full set of DSP instructions and a Memory Protection Unit (MPU) for enhanced security.
The device is designed for low-power applications and includes a powerful radio compliant with Bluetooth Low Energy 5.4 and IEEE 802.15.4-2011 specifications, supporting protocols such as Thread and Zigbee 3.0. It also features extensive memory options, including up to 1 MB of flash memory and up to 256 KB of SRAM, along with various peripherals and communication interfaces.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm Cortex-M4 (up to 64 MHz) and Arm Cortex-M0+ (32 MHz) |
| Memory | Up to 1 MB flash memory, up to 256 KB SRAM |
| Radio | Bluetooth Low Energy 5.4, IEEE 802.15.4-2011, Thread, Zigbee 3.0 |
| Power Supply | 1.71 to 3.6 V |
| Temperature Range | -40 °C to +105 °C |
| Package | UFQFPN 48 7x7x0.55 mm |
| ADC | 12-bit ADC, up to 16-bit with hardware oversampling |
| Timers | 1x 32-bit, 4 channels; 2x 16-bit, 2 channels; 2x 16-bit low-power timers |
| Communication Interfaces | USART, LPUART, SPI, I2C, SAI, USB 2.0 FS, Quad-SPI |
| Security Features | AES encryption engines, PKA, RNG, secure firmware installation |
Key Features
- Ultra-low-power platform with multiple power-saving modes
- High-performance Arm Cortex-M4 core with FPU and DSP instructions
- Dedicated Arm Cortex-M0+ core for real-time low-layer operations
- Integrated radio supporting Bluetooth Low Energy 5.4, IEEE 802.15.4, Thread, and Zigbee 3.0
- Rich analog peripherals including 12-bit ADC, ultra-low-power comparators, and accurate reference voltage generator
- Extensive communication interfaces: USART, LPUART, SPI, I2C, SAI, USB 2.0 FS, Quad-SPI
- Advanced security features: AES encryption engines, PKA, RNG, secure firmware installation
- Touch sensing controller with up to 18 capacitive sensing channels
- LCD driver up to 8x40 or 4x44 with internal step-up converter
- High efficiency SMPS step-down converter with automatic bypass mode
Applications
- IoT devices requiring low power consumption and wireless connectivity
- Smart home automation systems
- Industrial automation and control systems
- Wearable devices and health monitors
- Smart metering and energy management systems
- Automotive systems requiring low-power wireless communication
Q & A
- What is the core architecture of the STM32WB55CCU6TR?
The STM32WB55CCU6TR features a dual-core architecture with an Arm Cortex-M4 core operating at up to 64 MHz and an Arm Cortex-M0+ core at 32 MHz.
- What wireless protocols does the STM32WB55CCU6TR support?
The device supports Bluetooth Low Energy 5.4, IEEE 802.15.4-2011, Thread, and Zigbee 3.0.
- What is the power supply range for the STM32WB55CCU6TR?
The device operates from a 1.71 to 3.6 V power supply.
- What are the key security features of the STM32WB55CCU6TR?
The device includes AES encryption engines, PKA, RNG, and secure firmware installation for enhanced security.
- What are the available communication interfaces on the STM32WB55CCU6TR?
The device features USART, LPUART, SPI, I2C, SAI, USB 2.0 FS, and Quad-SPI interfaces.
- What is the temperature range for the STM32WB55CCU6TR?
The device operates in the -40 °C to +105 °C temperature range.
- Does the STM32WB55CCU6TR support over-the-air updates?
Yes, the device supports over-the-air (OTA) updates for Bluetooth Low Energy and 802.15.4.
- What type of memory does the STM32WB55CCU6TR have?
The device has up to 1 MB of flash memory and up to 256 KB of SRAM.
- Does the STM32WB55CCU6TR have any specific power-saving features?
Yes, the device features multiple power-saving modes, including shutdown, standby, and stop modes, to minimize power consumption.
- What is the package type for the STM32WB55CCU6TR?
The device is available in a UFQFPN 48 7x7x0.55 mm package.
- Does the STM32WB55CCU6TR support touch sensing and LCD driving?
Yes, the device includes a touch sensing controller with up to 18 capacitive sensing channels and an LCD driver up to 8x40 or 4x44 with an internal step-up converter.
