The EFR32MG22 Series from Silicon Labs are 2.4 GHz Zigbee SoCs. They are ideal for ultra-low-power battery-powered or battery-less IoT devices including smart home sensors, lighting controls, and building and industrial automation. They have a 32-bit 76.8 MHz ARM Cortex-M33 with DSP instruction and a floating-point unit for efficient signal processing. These SoCs have a 16-bit analog-to-digital converter (ADC) and support 2 (G)FSK with fully configurable shaping, OQPSK DSSS and (G)MSK modulation schemes. They support Bluetooth Low Energy (Bluetooth 5.2), direction finding using Angle-of-Arrival (AoA) and Angle-of-Departure (AoD), Bluetooth Mesh Low Power Node (512 kB parts only), Zigbee PRO/Green Power and proprietary protocols. These SoCs require a DC supply from 1.71 to 3.8 V and consume less than 8.2 mA in Tx mode and 3.9 mA of current in Rx mode.
The EFR32MG22 Series SoCs support Secure Boot and Hardware Cryptographic Acceleration for AES128/256, SHA-1, SHA-2 (up to 256-bit), ECC (up to 256-bit), ECDSA, and ECDH. They can be controlled via UART, SPI, EUART, PDM and I2C interfaces. These SoCs deliver a Tx power of up to 6 dBm and have an Rx sensitivity of -102.3 dBm. They are available in either a QFN40 package that measures 5 x 5 x 0.85 mm, a QFN32 package that measures 4 x 4 x 0.85 mm or a TQFN32 package that measures 4 x 4 x 0.30 mm.
