The EFR32BG21 Series from Silicon Labs are 2.4 GHz Wireless SOCs optimized for line-powered Bluetooth Low Energy and Bluetooth Mesh applications, including connected lighting, smart plugs, gateways and voice assistants. They deliver up to +20 dBm of output power and have a receive sensitivity better than -104 dBm. The SoC series provides a robust RF link of up to 124 dBm to ensure reliable long-range Bluetooth applications.
The EFR32BG21 SoC uses an 80 MHz ARM® Cortex®-M33 core, which provides plenty of processing capability and a dedicated security core that provides faster encryption, secure boot loading and debug access control. These SoCs are available in a 32-pin, 4 x 4 mm OFN package.