32-bit ARM Cortex-M4 core with 40 MHz maximum operating frequency
Up to 1 MB of flash and 256 kB of RAM
Pin-compatible with EFR32BG1 QFN48 devices (exceptions apply for 5V-tolerant pins)
12-channel Peripheral Reflex System, Low-Energy Sensor Interface & Multi-channel Capacitive Sense Interface
Autonomous Hardware Crypto Accelerator and True Random Number Generator
Integrated PA with up to 19 dBm transmit power for 2.4 GHz and 20 dBm for Sub-GHz radios
Integrated balun for 2.4 GHz
Robust peripheral set and up to 65 GPIO