Overview
The STM32WB55REV6 is a cutting-edge microcontroller from STMicroelectronics, designed for ultra-low-power wireless applications. This dual-core MCU combines an Arm Cortex-M4 CPU at 64 MHz and a Cortex-M0+ CPU at 32 MHz, making it highly efficient and versatile. The device supports multiple wireless protocols including Bluetooth LE 5.4, IEEE 802.15.4, Thread 1.3, and Zigbee 3.0, making it ideal for IoT and smart device applications.
Key Specifications
| Specification | Details |
|---|---|
| Core | Arm 32-bit Cortex-M4 CPU with FPU, up to 64 MHz; Arm 32-bit Cortex-M0+ CPU, up to 32 MHz |
| Memory | Up to 1 MB flash memory, up to 256 KB SRAM |
| Wireless Capabilities | Bluetooth LE 5.4, IEEE 802.15.4, Thread 1.3, Zigbee 3.0 |
| Radio Frequency | 2.4 GHz RF transceiver, RX sensitivity: -96 dBm (Bluetooth LE), -100 dBm (802.15.4) |
| Power Supply | 1.71 to 3.6 V, ultra-low-power modes: 13 nA shutdown, 600 nA standby + RTC + 32 KB RAM |
| Temperature Range | -40 °C to 85 / 105 °C |
| Clock Sources | 32 MHz crystal oscillator, 32 kHz crystal oscillator for RTC, internal low-power 32 kHz RC |
| Security Features | Hardware encryption AES up to 256-bit, secure firmware installation (SFI), true random number generator (RNG) |
| Peripheral Interfaces | USART, SPI, I2C, USB 2.0 FS device, SAI, LPUART, touch sensing controller, LCD controller |
Key Features
- Ultra-low-power platform with multiple power-saving modes
- Dual-core architecture with Arm Cortex-M4 and Cortex-M0+ CPUs
- Integrated 2.4 GHz RF transceiver supporting Bluetooth LE 5.4, IEEE 802.15.4, Thread 1.3, and Zigbee 3.0
- High-efficiency embedded SMPS step-down converter and ultra-safe BOR/POR
- Rich analog peripherals including 12-bit ADC, ultra-low-power comparators, and accurate voltage references
- Advanced security features including hardware encryption, secure firmware installation, and true random number generator
- Support for external PA and integrated passive device (IPD) companion chips
- Development support with serial wire debug, JTAG, and embedded trace macrocell
Applications
- Internet of Things (IoT) devices
- Smart home and building automation
- Industrial automation and control systems
- Wearable devices and health monitoring systems
- Wireless sensor networks and mesh networks
- Smart energy management and metering systems
Q & A
- What are the core specifications of the STM32WB55REV6?
The STM32WB55REV6 features a dual-core architecture with an Arm Cortex-M4 CPU at 64 MHz and an Arm Cortex-M0+ CPU at 32 MHz.
- What wireless protocols does the STM32WB55REV6 support?
The device supports Bluetooth LE 5.4, IEEE 802.15.4, Thread 1.3, and Zigbee 3.0.
- What is the power supply range of the STM32WB55REV6?
The power supply range is from 1.71 to 3.6 V.
- What are the ultra-low-power modes available on the STM32WB55REV6?
The device features 13 nA shutdown mode, 600 nA standby mode + RTC + 32 KB RAM, and 2.1 µA stop mode + RTC + 256 KB RAM.
- What security features are integrated into the STM32WB55REV6?
The device includes hardware encryption AES up to 256-bit, secure firmware installation (SFI), and a true random number generator (RNG).
- What are the key analog peripherals of the STM32WB55REV6?
The device includes a 12-bit ADC, ultra-low-power comparators, and accurate voltage references.
- Does the STM32WB55REV6 support external power amplifiers?
- What development tools are available for the STM32WB55REV6?
The device supports serial wire debug, JTAG, and embedded trace macrocell for development.
- What are the typical applications of the STM32WB55REV6?
The device is typically used in IoT devices, smart home and building automation, industrial automation, wearable devices, and wireless sensor networks.
- What is the temperature range of the STM32WB55REV6?
The operating temperature range is from -40 °C to 85 / 105 °C.
