EFR32FG12P231F1024GM68-CR

RF Transceiver ICS Overview

The EFR32FG12P231F1024GM68-CR is a Sub-GHz RF System on Chip (SoC) from Silicon Labs, featuring an ARM Cortex-M4 core operating at up to 40 MHz. It integrates 1 MB of flash memory and 128 kB of RAM within a QFN-68 package. The device supports frequencies including 169, 315, 433, 490, 868, and 915 MHz, with a maximum data rate of 500 kbps. It delivers +20 dBm output power and achieves -126.2 dBm sensitivity. Operating voltage ranges from 1.8 V to 3.8 V, with receive current at 8.4 mA and transmit current at 35.3 mA.

RF Transceiver ICS Feature Summary

• Integrates a 32-bit ARM Cortex-M4 processor with substantial non-volatile and volatile memory for complex application hosting.
• Provides high-output power capability and superior receiver sensitivity for extended wireless range in Sub-GHz bands.
• Supports multiple serial communication interfaces including I2C, SPI, UART, and USART for versatile peripheral connectivity.

RF Transceiver ICS Applications

• Smart home automation systems
• Industrial sensor networks
• Wireless metering applications

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'CR' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications and temperature grade ratings. Ensure compatibility with required PCB footprint dimensions for the QFN-68 package. Cross-reference the exact part number with authorized distributors to avoid counterfeit components and confirm RoHS compliance status prior to procurement.

RF Transceiver ICS Selection Notes

Select this component when designing Sub-GHz wireless solutions requiring high output power and integrated processing capabilities. The QFN-68 package offers a compact form factor suitable for space-constrained designs. Consider the 1 MB flash capacity for firmware complexity and the 40 MHz clock speed for real-time processing requirements in industrial or consumer IoT environments.

RF Transceiver ICS Part Context

This model belongs to the Flex Gecko family of SoCs, designed for robust wireless connectivity. The FG12 series specifically targets Sub-GHz frequency bands, distinguishing it from dual-band or 2.4 GHz variants. It combines radio transceiver functionality with microcontroller resources, enabling standalone operation without external baseband processors.

RF Transceiver ICS Replacement Considerations

Check for pin-compatible alternatives within the same EFR32FG family that may offer different memory sizes or security features. Verify if newer revisions of the datasheet indicate any functional updates or recommended substitutions for legacy inventory management.