Overview
The STM32WB55RGV7, produced by STMicroelectronics, is a cutting-edge, ultra-low-power dual-core microcontroller. It features an Arm Cortex-M4 core operating at up to 64 MHz and an Arm Cortex-M0+ core dedicated to real-time low-layer operations. This device is designed for multiprotocol wireless applications, supporting Bluetooth 5.4, IEEE 802.15.4, Thread 1.3, and Zigbee 3.0. The STM32WB55RGV7 is optimized for low-power consumption, making it ideal for battery-powered devices and IoT applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm Cortex-M4 (up to 64 MHz) and Arm Cortex-M0+ |
| Memory | Up to 1 MB Flash, up to 256 KB SRAM |
| Radio | 2.4 GHz RF transceiver supporting Bluetooth 5.4, IEEE 802.15.4, Thread 1.3, and Zigbee 3.0 |
| Power Supply | 1.71 to 3.6 V |
| Temperature Range | -40 to +105 °C |
| ADC | 12-bit, up to 16-bit with hardware oversampling |
| Timers | 1x 32-bit, 5x 16-bit, 2x ultra-low-power 16-bit timers |
| Communication Interfaces | 1x USART, 1x LPUART, 2x I2C, 2x SPI, 1x SAI, 1x USB 2.0 FS |
| Security Features | 2x AES encryption engines, PKA, RNG, sector protection (PCROP) |
| Package | VFQFPN 68 8x8x1.0 mm |
Key Features
- Ultra-low-power platform with multiple power-saving modes
- Dual-core architecture with Arm Cortex-M4 and Cortex-M0+ cores
- Integrated 2.4 GHz RF transceiver supporting Bluetooth 5.4, IEEE 802.15.4, Thread 1.3, and Zigbee 3.0
- Programmable output power up to +6 dBm with 1 dB steps
- Integrated balun to reduce BOM
- Support for GATT caching, EATT, and advertising extension
- Accurate RSSI for power control
- High-speed memories: up to 1 MB Flash, up to 256 KB SRAM
- Quad-SPI flash memory interface with XIP capability
- Rich analog peripherals: 12-bit ADC, ultra-low-power comparators, accurate reference voltage generator
- Advanced timers and low-power timers
- Multiple communication interfaces: USART, LPUART, I2C, SPI, SAI, USB 2.0 FS
- Security features: AES encryption engines, PKA, RNG, sector protection (PCROP)
- Touch sensing controller and LCD driver
Applications
- IoT devices and smart home applications
- Wearable devices and health monitors
- Industrial automation and control systems
- Wireless sensor networks and mesh networks
- Smart energy management and metering systems
- Automotive and transportation systems requiring low-power wireless connectivity
Q & A
- What are the core specifications of the STM32WB55RGV7?
The STM32WB55RGV7 features an Arm Cortex-M4 core operating at up to 64 MHz and an Arm Cortex-M0+ core for real-time low-layer operations.
- What wireless protocols does the STM32WB55RGV7 support?
The device supports Bluetooth 5.4, IEEE 802.15.4, Thread 1.3, and Zigbee 3.0.
- What is the power supply range for the STM32WB55RGV7?
The power supply range is from 1.71 to 3.6 V.
- What are the key security features of the STM32WB55RGV7?
The device includes two AES encryption engines, a public key authority (PKA), a true random number generator (RNG), and sector protection (PCROP) against R/W operations.
- What types of timers are available on the STM32WB55RGV7?
The device features one 32-bit timer, five 16-bit timers, and two ultra-low-power 16-bit timers.
- Does the STM32WB55RGV7 support over-the-air updates?
Yes, it supports over-the-air (OTA) updates for Bluetooth Low Energy and 802.15.4.
- What is the temperature range for the STM32WB55RGV7?
The operating temperature range is from -40 to +105 °C.
- What are the available communication interfaces on the STM32WB55RGV7?
The device includes USART, LPUART, I2C, SPI, SAI, and USB 2.0 FS interfaces.
- Does the STM32WB55RGV7 have any specific power-saving features?
Yes, it features multiple power-saving modes including shutdown, standby, and stop modes to optimize power consumption.
- What is the package type for the STM32WB55RGV7?
The device is available in a VFQFPN 68 8x8x1.0 mm package.
- Is the STM32WB55RGV7 suitable for industrial applications?
Yes, it is suitable for industrial applications due to its robust features, including advanced timers, low-power modes, and comprehensive security features.
