EFR32MG21B020F512IM32-BR

RF Transceiver ICS Overview

The EFR32MG21B020F512IM32-BR is a Mighty Gecko RF System on Chip featuring an ARM Cortex-M33 core operating at 80 MHz. It supports Bluetooth 5.1, Thread, and Zigbee protocols in the 2.4 GHz band with a maximum data rate of 2 Mbps. The device provides 512 kB of program memory and 64 kB of RAM within a QFN-32 package. It delivers a programmable output power of 20 dBm and achieves a receive sensitivity of -94.4 dBm. Operating voltage ranges from 1.71 V to 3.8 V, with active currents of 8.8 mA for reception and 33.8 mA for transmission.

RF Transceiver ICS Feature Summary

• Integrates an ARM Cortex-M33 processor with Secure Vault hardware security technology for robust protection against vulnerabilities.
• Supports multiprotocol mesh networking including Bluetooth, Thread, and Zigbee with high-performance 2.4 GHz radio capabilities.
• Features an integrated power amplifier delivering up to +20 dBm output power for extended communication range.

RF Transceiver ICS Applications

• Zigbee and Thread mesh network devices
• Bluetooth Low Energy smart home products
• IoT gateways and digital voice assistants
• Smart lighting systems

RF Transceiver ICS Procurement Notes

Verify the specific suffix BR indicates reel packaging when confirming order details. Ensure compatibility with the required firmware SDK version for multiprotocol support. Confirm the QFN-32 package dimensions match the PCB footprint design. Check moisture sensitivity level requirements for storage and handling procedures prior to assembly.

RF Transceiver ICS Selection Notes

Select this model for applications requiring 512 kB flash and 20 dBm output power. Compare with EFR32MG21A variants if lower cost is prioritized over performance. Consider EFR32MG21B010 variants if 10 dBm output suffices. Verify that the 64 kB RAM meets application stack requirements compared to higher capacity options.

RF Transceiver ICS Part Context

This component belongs to the Silicon Labs EFR32MG21 Series 2 family of wireless SoCs. These devices are optimized for line-powered IoT applications requiring high processing capability and improved RF performance. The series utilizes the Secure Vault subsystem to enhance security for connected products.

RF Transceiver ICS Replacement Considerations

EFR32MG21B020F512IM32-B is the tape-and-reel equivalent without the BR suffix designation. EFR32MG21A020F512IM32-BR offers similar specifications with potential minor performance differences. Verify pinout and register compatibility before substituting.