EFR32BG22 in Silicon Labs EFR32 / EFM32 Family
The EFR32BG22 series by Silicon Labs is a specialized sub-family of the Wireless Gecko Series 2 platform, designed specifically for high-volume, battery-powered Bluetooth Low Energy applications. Centered around an ARM Cortex-M33 core running at 76.8 MHz, these SoCs integrate a high-efficiency 2.4 GHz radio with a minimal power footprint. They provide a cost-optimized solution for developers requiring professional-grade BLE 5.2 connectivity, including direction-finding and mesh networking support, within energy-constrained IoT environments.
Variants in This Sub-Family
Variants within the EFR32BG22 sub-family are distinguished primarily by their Flash memory capacity, ranging from 352KB to 512KB, and RAM size, typically 32KB. Differences also include maximum GPIO count and specific hardware support for Bluetooth features like Direction Finding. Temperature grades vary from standard consumer ranges to industrial ratings of -40°C to +125°C, allowing for deployment in more demanding environmental conditions.
