EFR32MG24A021F1024IM40-BR

Overview

The EFR32MG24A021F1024IM40-BR is a Silicon Labs RF System on a Chip (SoC) from the MG24 series, designed for 2.4 GHz wireless applications. It features an ARM Cortex-M33 core operating at 78 MHz with DSP and FPU capabilities. The device integrates 1024 kB of Flash memory and 128 kB of RAM. Key electrical specifications include a maximum output power of +20 dBm, a sensitivity of -94.8 dBm at 2 Mbps GFSK, and a supply voltage range of 1.71 V to 3.8 V. It operates within a temperature range of -40°C to +125°C and is housed in a QFN-40 package.

Feature Summary

• Supports multiple wireless protocols including Bluetooth Low Energy, Zigbee, Thread, and Matter.
• Integrates a high-performance 32-bit ARM Cortex-M33 processor with matrix-vector processor for AI/ML acceleration.
• Provides direction finding capabilities using Angle of Arrival (AoA) and Angle of Departure (AoD).
• Features low system energy consumption with optimized current draw across various operational modes.

Applications

• Smart home devices and lighting systems
• Medical IoT equipment requiring secure connectivity
• Matter-enabled smart accessories and sensors

Procurement Notes

Verify the specific suffix BR indicates reel packaging when ordering. Confirm the exact part number matches the required pinout and firmware compatibility. Ensure the supplier provides original manufacturer documentation to validate authenticity. Check for RoHS compliance status if required by your manufacturing standards. Validate that the component meets the specified industrial temperature range for your application environment.

Selection Notes

Choose this model for applications requiring high transmit power up to +20 dBm and robust multi-protocol support. The 1024 kB Flash and 128 kB RAM provide ample resources for complex protocol stacks and user data. Select this variant over lower-power models if extended range and higher throughput are critical. Consider the QFN-40 package size for PCB layout constraints compared to other form factors in the MG24 series.

Part Context

This component belongs to the EFR32MG24 family, representing Silicon Labs' latest generation of Mighty Gecko SoCs. It succeeds previous generations like the MG21, offering improved performance and additional features such as AI/ML acceleration. The MG24 series is positioned for advanced mesh networking applications requiring high security and efficiency.

Replacement Considerations

Direct substitutes may include other variants within the EFR32MG24 series with different memory or package configurations, such as the EFR32MG24A021F1024IM48-BR. Verify pin compatibility and software library updates when migrating between package types or memory sizes within the same family.