EFR32FG23A021F512GM40-BR

The EFR32FG23A021F512GM40-BR from Silicon Labs is a versatile Wireless System-on-Chip (SoC) designed for sub-GHz Internet of Things (IoT) applications. It integrates a high-performance 32-bit ARM Cortex-M33 core operating at up to 78 MHz, providing ample processing power for complex tasks. The device features up to 512 kB of flash program memory and 64 kB of RAM, enabling robust application development.

The integrated sub-GHz radio core offers long-range capabilities and is designed to be resilient to interference from 2.4 GHz technologies like Wi-Fi. With a TX power output of up to 20 dBm, it ensures reliable wireless communication. The SoC supports a wide range of modulation schemes including 2FSK, 4FSK, GFSK, OOK, and OQPSK, and operates across multiple frequency bands from 110 MHz to 970 MHz.

Key electrical characteristics include a wide operating voltage range of 1.71V to 3.8V and low current consumption, with receive currents as low as 3.7 mA. It supports various serial interfaces such as I2C, I2S, SPI, and UART, and provides up to 22 GPIO pins for flexible system integration. The device is housed in a 40-VFQFN Exposed Pad package, suitable for surface mounting.

This SoC is an ideal solution for applications in smart homes, security systems, lighting control, building automation, and metering. Its robust peripheral set, low-power consumption, and fast wakeup times make it suitable for battery-powered IoT devices requiring secure connectivity.