SiLEFR32BG22C224F512GM32-C

Overview

The EFR32BG22C224F512GM32-C is a high-performance, ultra-low power Bluetooth 5.2 System-on-Chip (SoC) from Silicon Labs' Wireless Gecko Series 2. It integrates a 76.8 MHz ARM Cortex-M33 core with 512kB of Flash and 32kB of RAM, featuring advanced security including Secure Boot with Root of Trust and hardware cryptographic acceleration. Designed specifically for energy-sensitive IoT endpoints, it provides high radio sensitivity of -106.7 dBm and deep sleep current as low as 1.75 uA.

Why Choose This Part

This SoC excels in energy efficiency, consuming only 27 uA/MHz in active mode and featuring a shutdown current of 0.17 uA. Its ARM Cortex-M33 core includes TrustZone and an FPU, allowing for complex edge processing while maintaining high security standards. The integrated PA and high sensitivity ensure reliable wireless range with minimal external components in a compact 4x4 mm QFN32 package.

Applications

Getting Started

Development is primarily supported through Silicon Labs Simplicity Studio 5, which provides the Bluetooth SDK and configuration tools. For hardware evaluation, the BG22 Thunderboard or the EFR32BG22 Wireless Gecko Starter Kit (SLWSTK6021A) offers an integrated debugger and sensors. Engineers can utilize the Silicon Labs Configurator to manage clock trees and the Peripheral Reflex System (PRS) for autonomous hardware tasks.

Also Consider

CC2642R TITexas Instruments - Part of the SimpleLink platform, offering a dedicated sensor controller for autonomous low-power monitoring.

STM32WB55CG STMicroelectronics - A dual-core (Cortex-M4 and Cortex-M0+) architecture that offloads the radio stack to a dedicated processor independent of the user application.

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