EFR32FG25A221F1920IM56-B

RF Transceiver ICS Overview

The EFR32FG25A221F1920IM56-B is a Sub-GHz RF System on Chip from Silicon Labs' Flex Gecko family. It integrates a 32-bit ARM Cortex-M33 core with 1920KB Flash and 512KB RAM. The device supports 802.15.4 and Zigbee protocols, offering 16dBm output power and -126.3dBm sensitivity. It operates between 1.71V and 3.8V, with receive current of 6.28mA and transmit current ranging from 58.6mA to 186mA. Data rates reach 2.4Mbps using FSK, OFDM, or O-QPSK modulation in a 56-VFQFN package.

RF Transceiver ICS Feature Summary

• Integrates a secure ARM Cortex-M33 processor with substantial non-volatile memory for complex application logic
• Features a high-performance Sub-GHz radio with integrated power amplifier for extended range connectivity
• Supports multiple modulation schemes including FSK, OFDM, and O-QPSK for flexible protocol implementation

RF Transceiver ICS Applications

• Smart metering and utility infrastructure
• Industrial IoT sensor networks
• Long-range wireless control systems

RF Transceiver ICS Procurement Notes

Verify the specific suffix BR against official Silicon Labs documentation to confirm tape-and-reel packaging requirements. Ensure compatibility with the target PCB footprint for the 56-VFQFN exposed pad package. Cross-reference the full part number with the manufacturer's latest datasheet to validate voltage ranges and temperature specifications before finalizing procurement orders.

RF Transceiver ICS Selection Notes

Select this component when long-range Sub-GHz communication is required without 2.4GHz interference. The large memory capacity suits applications needing extensive local data handling or complex protocol stacks. The integrated security features and high TX power make it suitable for robust industrial environments requiring reliable transmission over distance.

RF Transceiver ICS Part Context

This model belongs to the EFR32FG25 series, designed for secure, high-throughput Sub-GHz applications. It distinguishes itself within the Flex Gecko lineup by combining significant processing power with long-range radio capabilities. The FG25 series targets use cases demanding both computational density and extended wireless coverage in a single chip solution.

RF Transceiver ICS Replacement Considerations

Check Silicon Labs documentation for direct pin-compatible upgrades within the FG25 family. Verify if alternative part numbers offer different memory sizes or package options while maintaining the same electrical characteristics and interface definitions.