EFR32MG1P231F256GM48-C0

Overview

The EFR32MG1P231F256GM48-C0 is a Sub-GHz RF System on Chip (SoC) from Silicon Labs, part of the Mighty Gecko family. It integrates an ARM Cortex-M4 core operating at up to 40 MHz with 256 kB of flash memory and 32 kB of RAM. The device supports multiple Sub-GHz frequency bands including 169-170 MHz, 195-358 MHz, 426-445 MHz, and 470-510 MHz. It features a transmit power of 19.5 dBm and operates within a voltage range of 1.8 V to 3.8 V. The component is housed in a QFN-48 package.

Feature Summary

• Integrates an ARM Cortex-M4 processor with substantial non-volatile memory for complex protocol stacks.
• Supports versatile Sub-GHz frequency bands suitable for global IoT connectivity standards.
• Delivers high output power for extended wireless communication range.

Applications

• Smart metering and utility automation
• Industrial sensor networks
• Home automation systems

Procurement Notes

Verify the specific suffix against official Silicon Labs documentation to confirm package type and tape/reel specifications. Ensure compatibility with existing PCB footprints for the QFN-48 form factor. Cross-reference the exact part number with current datasheets to validate active status and environmental compliance details before finalizing procurement orders.

Selection Notes

Select this component when Sub-GHz frequencies are required for longer-range applications compared to 2.4 GHz alternatives. The integrated MCU reduces external component count, lowering BOM complexity. Evaluate the 19.5 dBm output power against link budget requirements to ensure adequate coverage for the intended deployment environment.

Part Context

This SoC belongs to the Mighty Gecko series, designed for cost-sensitive and space-constrained IoT devices. It provides a balance of processing capability and RF performance, enabling efficient implementation of mesh networking protocols like Zigbee and Thread in Sub-GHz bands.

Replacement Considerations

Check for updated revisions within the MG1P family or newer MG2x series for enhanced security features. Verify pin-to-pin compatibility if substituting with other QFN-48 variants in the same product line.