EFR32MG1B732F256GM32-C0R

Overview

The EFR32MG1B732F256GM32-C0R is a Mighty Gecko System-on-Chip from Silicon Labs, integrating an ARM Cortex-M4 processor with a 2.4 GHz RF transceiver. It supports IEEE 802.15.4 and Bluetooth Low Energy protocols. The device features 256 kB of flash memory and 32 kB of RAM. It operates within a supply voltage range of 1.85 V to 3.8 V. Key electrical specifications include a maximum output power of 19.5 dBm and a receive sensitivity of -99 dBm. The unit is housed in a 32-pin VFQFN package with an exposed pad.

Feature Summary

• Integrates an ARM Cortex-M4 core with a high-performance 2.4 GHz radio for combined processing and wireless communication.
• Supports multiple wireless standards including Zigbee, Thread, and Bluetooth Low Energy for versatile connectivity.
• Provides robust RF performance with high output power and sensitive reception capabilities.

Applications

• Zigbee and Thread mesh networking nodes
• Bluetooth Low Energy peripheral devices
• Smart home automation controllers

Procurement Notes

Verify the specific suffix 'C0R' against the manufacturer's current datasheet to confirm pinout and packaging details. Note that this component may be classified as Not Recommended for New Designs (NRND). Ensure compatibility with existing board layouts before procurement, as design changes are discouraged for obsolete or end-of-life parts.

Selection Notes

Select this model when both Zigbee/Thread and BLE support are required on a single chip. It is suitable for applications needing moderate memory capacity and standard 2.4 GHz performance. Consider alternative Mighty Gecko variants if specific protocol exclusivity or different memory sizes are preferred.

Part Context

This part belongs to the EFR32MG1 series, known as Mighty Gecko. It sits between entry-level and high-performance segments, offering a balance of cost and capability. The MG1B variant specifically targets 2.4 GHz applications, distinguishing it from sub-GHz Flex Gecko models.

Replacement Considerations

Public confirmed substitute part numbers: EFR32MG1B232F256GM32-C0R, EFR32MG1B732F256GM32-C0.