EFR32MG21A020F1024IM32-BR

Overview

The EFR32MG21A020F1024IM32-BR is a Mighty Gecko Series 2 wireless System on Chip (SoC) integrating an ARM Cortex-M33 microcontroller with a 2.4 GHz RF transceiver. It supports Bluetooth v5.1, Thread, and Zigbee protocols. The device features 1024 kB of flash memory and 96 kB of RAM within a 32-VFQFN package. Key electrical parameters include a maximum output power of 20 dBm, a receive sensitivity of -104.9 dBm, and operation across a supply voltage range of 1.71 V to 3.8 V.

Feature Summary

• Integrates an ARM Cortex-M33 processor with a high-performance 2.4 GHz radio for multiprotocol mesh networking.
• Includes Secure Vault technology with physical unclonable functions (PUF) for hardware-level security.
• Provides extensive peripheral interfaces including ADC, GPIO, I2C, SPI, UART, and I2S.

Applications

• Line-powered Zigbee and Thread mesh networks
• Smart home gateways and hubs
• Networked lighting systems
• Voice assistants

Procurement Notes

Verify the specific suffix 'BR' indicates reel packaging when sourcing components. Confirm that the ordering part number matches the exact memory configuration of 1024 kB flash and 96 kB RAM. Ensure compatibility with the required 32-VFQFN footprint during procurement planning.

Selection Notes

Select this component for applications requiring high processing power alongside robust wireless connectivity. The integrated Cortex-M33 core supports DSP and floating-point operations suitable for complex protocol stacks. Consider the 20 dBm output power for extended range requirements in line-powered environments.

Part Context

This model belongs to the Silicon Labs Mighty Gecko family, designed for secure IoT deployments. It utilizes the Flex SDK for development and offers optimized performance for IEEE 802.15.4 and Bluetooth Low Energy standards compared to previous generations.

Replacement Considerations

EFR32MG21A010F1024IM32-DR