Overview
The STM32WB50CGU5, produced by STMicroelectronics, is an ultra-low-power dual-core microcontroller unit (MCU) that integrates a powerful radio compliant with Bluetooth® Low Energy 5.4 and IEEE 802.15.4-2011 specifications. It features two Arm® cores: a Cortex®-M4 core operating at up to 64 MHz and a Cortex®-M0+ core dedicated to real-time low-layer operations. This device is designed for low-power applications, offering a comprehensive set of power-saving modes and advanced security features.
Key Specifications
| Parameter | Specification |
|---|---|
| Core | Arm® 32-bit Cortex®-M4 with FPU, up to 64 MHz; Arm® 32-bit Cortex®-M0+ |
| Memory | 1 MB flash memory, 128 KB SRAM |
| Radio | 2.4 GHz RF transceiver supporting Bluetooth® 5.4 and IEEE 802.15.4 |
| Power Supply | 2.0 to 3.6 V |
| Temperature Range | -10 °C to +85 °C |
| Package | 48-pin UFQFPN 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 ultra low power |
| Communication Interfaces | 1x USART, 1x SPI, 1x I2C |
| Security Features | AES encryption, PKA, RNG, sector protection against R/W operations |
Key Features
- Ultra-low-power platform with 14 nA shutdown mode, 700 nA Standby mode + RTC + 32 KB RAM, and 2.25 µA Stop mode + RTC + 128 KB RAM.
- Programmable output power up to +4 dBm with 1 dB steps and integrated balun to reduce BOM.
- Support for Bluetooth® Low Energy, IEEE 802.15.4, Thread 1.3, and Zigbee® 3.0.
- Dedicated Arm® 32-bit Cortex®-M0+ CPU for real-time Radio layer and accurate RSSI for power control.
- Advanced security features including AES encryption, PKA, RNG, and sector protection against R/W operations.
- Rich analog peripherals including a 12-bit ADC with hardware oversampling and multiple timers.
- Inter-processor communication controller (IPCC) and hardware semaphores for resource sharing between CPUs.
- Support for external PA and integrated passive device (IPD) companion chip for optimized matching solution.
Applications
- Industrial automation and control systems.
- Personal electronics such as wearables and smart home devices.
- IoT devices requiring low-power wireless communication.
- Systems needing compliance with radio frequency regulations (ETSI EN 300 328, EN 300 440, FCC CFR47 Part 15, ARIB STD-T66).
Q & A
- What are the core specifications of the STM32WB50CGU5?
The STM32WB50CGU5 features an Arm® 32-bit Cortex®-M4 core with FPU, operating at up to 64 MHz, and an Arm® 32-bit Cortex®-M0+ core for real-time low-layer operations.
- What is the memory configuration of the STM32WB50CGU5?
The device has 1 MB of flash memory and 128 KB of SRAM.
- What wireless communication protocols does the STM32WB50CGU5 support?
The device supports Bluetooth® Low Energy 5.4, IEEE 802.15.4, Thread 1.3, and Zigbee® 3.0.
- What is the power supply range for the STM32WB50CGU5?
The device operates from a 2.0 to 3.6 V power supply.
- What is the temperature range for the STM32WB50CGU5?
The device operates in the -10 °C to +85 °C temperature range.
- What are the key security features of the STM32WB50CGU5?
The device includes AES encryption, PKA, RNG, and sector protection against R/W operations.
- What are the available communication interfaces on the STM32WB50CGU5?
The device features one USART, one SPI, and one I2C interface.
- Does the STM32WB50CGU5 support over-the-air updates?
Yes, the device supports over-the-air (OTA) updates for Bluetooth® Low Energy and 802.15.4.
- What is the package type for the STM32WB50CGU5?
The device is available in a 48-pin UFQFPN 7x7x0.55 mm package.
- What are some typical applications for the STM32WB50CGU5?
Typical applications include industrial automation, personal electronics, IoT devices, and systems requiring compliance with specific radio frequency regulations.
