Overview
The STM32WB55CGU6TR is a highly advanced, ultra-low-power dual-core microcontroller from STMicroelectronics. It features an Arm Cortex-M4 core with a floating-point unit (FPU) and a dedicated Arm Cortex-M0+ core for real-time radio layer processing. This MCU is part of the STM32WB series, which integrates a 2.4 GHz radio transceiver supporting Bluetooth 5.3 and IEEE 802.15.4 protocols, making it suitable for wireless applications such as IoT devices, wearables, and industrial automation.
Key Specifications
| Parameter | Value |
|---|---|
| Microcontroller Core | Arm Cortex-M4 with FPU and Arm Cortex-M0+ |
| Flash Memory | Up to 1 Mbyte |
| SRAM | Up to 256 Kbytes |
| Operating Temperature | -40 to +105 °C (+125 °C junction) |
| Power Supply | 1.71 to 3.6 V |
| Timers | 1 x 32-bit, 5 x 16-bit, 2 x ultra-low-power 16-bit |
| Communication Interfaces | 1 x USART, 1 x LPUART, 2 x SPI, 2 x I2C, 1 x SAI, 1 x USB 2.0 FS |
| Radio Transceiver | 2.4 GHz, Bluetooth 5.3, IEEE 802.15.4 |
| Security Features | AES encryption, PKA, RNG, customer key storage |
| Capacitive Sensing Channels | Up to 18 channels |
| LCD Driver | Up to 8x40 or 4x44 with internal step-up converter |
Key Features
- Ultra-low-power design with comprehensive power-saving modes.
- High-speed memories including up to 1 Mbyte of flash memory and up to 256 Kbytes of SRAM.
- Quad-SPI flash memory interface with execute-in-place (XIP) capability.
- Advanced security features including AES encryption, public key authority (PKA), and true random number generator (RNG).
- Integrated 2.4 GHz radio transceiver supporting Bluetooth 5.3 and IEEE 802.15.4 protocols.
- Multiple communication interfaces such as USART, LPUART, SPI, I2C, SAI, and USB 2.0 FS.
- Capacitive sensing controller with up to 18 channels and an integrated LCD driver.
- Low-power RTC, advanced timers, and ultra-low-power comparators.
Applications
- Internet of Things (IoT) devices.
- Wearables and fitness trackers.
- Industrial automation and control systems.
- Smart home devices and appliances.
- Wireless sensor networks and mesh networks.
- Medical devices requiring low power and wireless connectivity.
Q & A
- What is the core architecture of the STM32WB55CGU6TR?
The STM32WB55CGU6TR features an Arm Cortex-M4 core with a floating-point unit (FPU) and a dedicated Arm Cortex-M0+ core for real-time radio layer processing.
- What wireless protocols does the STM32WB55CGU6TR support?
The device supports Bluetooth 5.3 and IEEE 802.15.4 protocols.
- What is the operating temperature range of the STM32WB55CGU6TR?
The operating temperature range is -40 to +105 °C (+125 °C junction).
- What are the key security features of the STM32WB55CGU6TR?
The device includes AES encryption, public key authority (PKA), true random number generator (RNG), and customer key storage.
- Does the STM32WB55CGU6TR support capacitive sensing?
- What types of timers are available on the STM32WB55CGU6TR?
The device includes 1 x 32-bit timer, 5 x 16-bit timers, and 2 x ultra-low-power 16-bit timers.
- What communication interfaces are available on the STM32WB55CGU6TR?
The device features USART, LPUART, SPI, I2C, SAI, and USB 2.0 FS interfaces.
- Does the STM32WB55CGU6TR have an integrated LCD driver?
- What is the power supply range for the STM32WB55CGU6TR?
The power supply range is 1.71 to 3.6 V.
- Is the STM32WB55CGU6TR suitable for low-power applications?
