EFR32MG24A020F1536IM48-BR

Overview

The EFR32MG24A020F1536IM48-BR is a Bluetooth System on Chip from Silicon Labs' Mighty Gecko series. It features an ARM Cortex-M33 core operating at 78 MHz with DSP and FPU support. The device integrates 1536 kB of Flash memory and 192 kB of RAM. It operates in the 2.4 GHz band with a maximum output power of +20 dBm and a receive sensitivity of -94.4 dBm. Power supply ranges from 1.71 V to 3.8 V. It supports Bluetooth Low Energy, Mesh, Zigbee, Thread, and Matter protocols. The component is housed in a QFN-48 package and functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates high-performance 32-bit ARM Cortex-M33 processor with digital signal processing capabilities for efficient wireless protocol handling.
• Provides robust security through Secure Vault hardware protection mechanisms suitable for sensitive IoT applications.
• Supports multiple wireless standards including Bluetooth, Zigbee, Thread, and Matter for versatile connectivity options.

Applications

• Smart home devices requiring multi-protocol wireless connectivity
• Industrial sensor nodes operating in wide temperature environments
• Medical equipment needing secure data transmission

Procurement Notes

Verify the specific suffix BR indicates reel packaging configuration when sourcing components. Confirm that the A020 variant corresponds to the 192 kB RAM specification rather than higher capacity options. Ensure compatibility with required crystal frequencies for the 2.4 GHz radio operation. Check current availability status as supply constraints may affect lead times for this specific package type.

Selection Notes

Select this model when 192 kB RAM is sufficient for application firmware requirements. Choose this variant over B-series parts if Secure Vault High security features are not mandatory. Consider the QFN-48 footprint constraints during PCB layout design. Verify that the +20 dBm output power meets regulatory limits for the target deployment region.

Part Context

This component belongs to the EFR32MG24 family designed for low-power wireless IoT applications. It shares the same core architecture with other MG24 variants but differs in memory size and security features. The Mighty Gecko series emphasizes energy efficiency while maintaining high performance for complex protocol stacks.

FAQ

Does this part support sub-GHz frequency bands?

No, the EFR32MG24A020F1536IM48-BR operates exclusively in the 2.4 GHz band.

What is the maximum clock frequency of the MCU core?

The ARM Cortex-M33 core operates at a maximum frequency of 78 MHz.