EFR32MG24A020F1024IM40-B

Overview

The EFR32MG24A020F1024IM40-B is a 2.4 GHz RF System on a Chip from Silicon Labs, designed for multi-protocol wireless connectivity. It features an ARM Cortex-M33 core operating at up to 78 MHz, equipped with DSP and floating-point units. The device integrates 1024 kB of Flash memory and 128 kB of RAM. It supports Bluetooth 5.3, Matter, OpenThread, Zigbee, and proprietary protocols. Key electrical parameters include a maximum output power of +20 dBm, a receive sensitivity of -94.4 dBm at 2 Mbps GFSK, and a supply voltage range of 1.71 V to 3.8 V. The component operates within a temperature range of -40°C to +125°C and is housed in a QFN-40 package.

Feature Summary

• Supports Matter, OpenThread, Zigbee, Bluetooth Low Energy, and proprietary 2.4 GHz protocols
• Includes hardware acceleration for AI/ML via matrix-vector processor
• Provides direction finding capabilities using Angle of Arrival (AoA) and Angle of Departure (AoD)
• Integrates Secure Vault™ for enhanced IoT security

Applications

• Smart home hubs and gateways
• Building automation sensors and switches
• Smart locks and access control systems
• LED lighting and fixtures
• Predictive maintenance devices

Procurement Notes

Verify the specific suffix 'B' indicates the extended temperature range variant (+125°C). Confirm that the IM40 designation corresponds to the QFN-40 package type required for your PCB footprint. Ensure compatibility with the 40 MHz crystal oscillator requirement specified for the radio operation. Cross-reference the manufacturer part number with official Silicon Labs documentation to confirm current production status and availability.

Selection Notes

Select this model when high transmit power of +20 dBm is required for extended range applications. Choose this variant over lower-power options if the design demands operation in extreme environments up to +125°C. Consider the 1024 kB Flash capacity for complex firmware implementations involving multiple protocol stacks. Evaluate the QFN-40 package constraints against available board space and thermal dissipation requirements.

Part Context

This component belongs to the EFR32MG24 series, which targets robust mesh networking solutions. It shares the same core architecture as other MG24 variants but differs in memory size, output power, and package type. The MG24 series is positioned for applications requiring high performance and low power consumption in smart home and building automation sectors.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.