EFR32MG24A110F1024IM48-BR

Overview

The EFR32MG24A110F1024IM48-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 a maximum clock frequency of 78 MHz. The device integrates 1024 kB of Flash memory and 128 kB of RAM. Key electrical specifications include a maximum output power of +10 dBm and a receiver sensitivity of -94.8 dBm. It supports Bluetooth Low Energy and operates within a supply voltage range of 1.71 V to 3.8 V. The component is housed in a QFN-48 package and is rated for industrial temperatures from -40°C to +125°C.

Feature Summary

• Integrates an ARM Cortex-M33 processor with Secure Vault for enhanced security
• Supports multiple 2.4 GHz wireless protocols including BLE, Zigbee, Thread, and Matter
• Includes high-resolution 20-bit ADC for precise sensor interfacing

Applications

• Smart home devices and lighting systems
• Medical equipment requiring secure wireless connectivity
• IoT mesh network nodes using Zigbee or Thread protocols

Procurement Notes

Verify that the specific suffix 'BR' corresponds to the required tape-and-reel packaging configuration as defined by Silicon Labs. Confirm that the QFN-48 package dimensions align with the target PCB footprint. Ensure the selected variant matches the necessary regulatory certifications for the intended deployment region. Cross-reference the datasheet revision to confirm compatibility with existing firmware libraries.

Selection Notes

Select this model when a balance of moderate transmit power (+10 dBm) and high processing capability is required. The inclusion of a 20-bit ADC distinguishes it from standard variants lacking this peripheral. Consider the QFN-48 form factor for designs needing additional GPIOs compared to smaller packages. This SoC is suitable for applications prioritizing protocol flexibility across Bluetooth, Zigbee, and Thread standards.

Part Context

This component belongs to the EFR32xG24 Series 2 family, representing an evolution in Silicon Labs' wireless MCU portfolio. It builds upon previous generations with improved security features and higher performance cores. The MG24 designation indicates its focus on multi-protocol support for modern IoT ecosystems. It serves as a central processing unit for complex wireless edge devices requiring robust local computation.

Replacement Considerations

Direct substitutes within the same package include other EFR32MG24A110F1024IM48 variants differing only in antenna tuning or specific certification status. Variants with different output power levels, such as those offering +20 dBm, require RF circuit redesign. Lower-performance models may lack the 20-bit ADC or sufficient memory for complex protocol stacks.