EFR32FG22E121F512IM32-C

RF Transceiver ICS Overview

The EFR32FG22E121F512IM32-C is a Flex Gecko RF System on Chip (SoC) from Silicon Labs, integrating an ARM Cortex-M33 core with a 2.4 GHz radio. It features 512 kB of program memory and 32 kB of RAM within a 32-QFN package. The device supports data rates up to 1 Mbps with a transmit power of 6 dBm and a receive sensitivity of -96.2 dBm. Operating voltage ranges from 1.71 V to 3.8 V, with receive current at 3.6 mA and transmit current at 8.2 mA. It includes 18 GPIOs, I2C/UART interfaces, and operates between -40°C and +125°C.

RF Transceiver ICS Feature Summary

• Integrates an ARM Cortex-M33 processor with a high-performance 2.4 GHz radio for efficient wireless communication.
• Supports proprietary protocols alongside standard Bluetooth Low Energy, Thread, and Zigbee implementations.
• Includes RFSENSE technology enabling selective OOK mode for ultra-low power sensing applications.

RF Transceiver ICS Applications

• Smart home devices requiring low-power wireless connectivity
• Industrial sensor nodes utilizing proprietary or standard mesh protocols
• Wearable electronics needing compact form factors and BLE support

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'C' against the manufacturer's latest datasheet to confirm pinout compatibility and environmental ratings. Ensure the QFN-32 package dimensions match your PCB footprint design. Confirm that the 2.4 GHz frequency band aligns with regional regulatory requirements for your target market before finalizing procurement orders.

RF Transceiver ICS Selection Notes

Select this component when a balance of moderate flash memory and integrated 2.4 GHz radio is required. The Cortex-M33 core offers sufficient processing power for complex protocol stacks while maintaining low energy consumption. Consider the 6 dBm output power for short-range applications where higher transmission strength is unnecessary.

RF Transceiver ICS Part Context

This part belongs to the Wireless Gecko family, designed for versatile IoT connectivity. It combines processing, memory, and RF capabilities in a single die, reducing bill of materials complexity. The Flex Gecko series emphasizes flexibility in supporting multiple wireless standards within a unified hardware platform for diverse application needs.

RF Transceiver ICS Replacement Considerations

Check for EFR32FG22 variants with different memory sizes or package types if storage requirements change. Verify compatibility with alternative SoCs from other manufacturers only if pin-to-pin and electrical specifications are identical.

RF Transceiver ICS FAQ

What wireless protocols does this SoC support?

It supports Bluetooth Low Energy, Thread, Zigbee, and proprietary protocols via its integrated 2.4 GHz radio.

What is the maximum operating temperature?

The maximum operating temperature is +125°C.