EFR32FG22C121F512GM40-CR

RF Transceiver ICS Overview

The EFR32FG22C121F512GM40-CR is a Flex Gecko RF System-on-Chip featuring an ARM Cortex-M33 core operating at 38.4 MHz. It integrates a Sub-GHz transceiver supporting frequencies of 868 MHz, 915 MHz, and 920 MHz with a maximum data rate of 2 Mbps. The device provides 512 kB of flash memory and 32 kB of RAM. It operates within a voltage range of 1.71 V to 3.8 V, consuming 3.6 mA during reception and 8.2 mA during transmission. The unit is housed in a QFN-40 package.

RF Transceiver ICS Feature Summary

• Integrates a 32-bit ARM Cortex-M33 processor with high-performance Sub-GHz radio capabilities for efficient IoT connectivity.
• Provides substantial onboard storage with 512 kB of flash memory and 32 kB of RAM for complex application execution.
• Supports multiple Sub-GHz industrial bands including 868 MHz, 915 MHz, and 920 MHz for global regulatory compliance.

RF Transceiver ICS Applications

• Smart home devices requiring low-power wireless communication
• Industrial sensor networks utilizing Sub-GHz protocols
• IoT gateways and hubs for proprietary protocol implementation

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'CR' indicates the reel packaging configuration as documented by the manufacturer. Confirm that the part number matches the exact pinout and firmware requirements for your design. Ensure compatibility with the QFN-40 footprint dimensions. Cross-reference the datasheet for moisture sensitivity levels and reflow soldering profiles prior to assembly.

RF Transceiver ICS Selection Notes

Select this component when a balance of processing power and Sub-GHz range is required for battery-operated devices. The Cortex-M33 core supports advanced security features suitable for secure boot applications. Consider the 512 kB flash capacity for storing larger firmware images or protocol stacks compared to smaller variants in the Flex Gecko family.

RF Transceiver ICS Part Context

This model belongs to the Silicon Labs EFR32BG22/FG22 Blue/Flex Gecko series, designed for energy-efficient wireless IoT solutions. It shares architectural similarities with other BG22 parts but differs in radio frequency band support, focusing on Sub-GHz rather than 2.4 GHz operations. The series emphasizes low power consumption and secure connectivity for modern smart devices.

RF Transceiver ICS Replacement Considerations

EFR32FG22C121F512GM40-C

RF Transceiver ICS FAQ

What is the maximum operating frequency of the CPU?

The integrated ARM Cortex-M33 core operates at a maximum frequency of 38.4 MHz.

Which Sub-GHz frequency bands are supported?

The device supports 868 MHz, 915 MHz, and 920 MHz frequency bands.