EFR32MG24A020F1024IM48-B

Overview

The EFR32MG24A020F1024IM48-B is a Silicon Labs RF System on Chip featuring an ARM Cortex-M33 core operating at 78 MHz. It integrates 1024 kB Flash and 128 kB RAM within a QFN-48 package. The device supports 2.4 GHz Bluetooth communication with a maximum data rate of 2 Mbps. Key electrical parameters include +20 dBm output power, -94.4 dBm sensitivity, and a supply voltage range of 1.71 V to 3.8 V. It operates reliably between -40°C and +125°C.

Feature Summary

• Integrates high-performance ARM Cortex-M33 processor with hardware acceleration for signal processing
• Supports Matter, OpenThread, and Zigbee protocols for mesh networking applications
• Includes Secure Vault technology for enhanced IoT security against remote and local attacks

Applications

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

Procurement Notes

Verify the specific suffix IM48-B corresponds to the QFN-48 package and tray packaging configuration. Confirm that the 1024 kB Flash and 128 kB RAM variants match the design requirements. Ensure compliance with RoHS standards and check for moisture sensitivity level ratings prior to assembly. Cross-reference the manufacturer part number with official Silicon Labs documentation to avoid substitution errors.

Selection Notes

Select this component when requiring a balance of moderate memory capacity and high RF performance in a compact form factor. The 1024 kB Flash provides sufficient storage for complex multi-protocol stacks while maintaining lower cost compared to larger memory variants. The QFN-48 package offers a suitable footprint for space-constrained designs without sacrificing thermal performance or I/O availability.

Part Context

This model belongs to the EFR32MG24 series, designed for advanced IoT connectivity. It utilizes Silicon Labs' Blue Gecko technology optimized for low power consumption. The series targets applications demanding robust wireless performance and secure data handling. It serves as a key building block for next-generation smart devices requiring reliable 2.4 GHz communication capabilities.

Replacement Considerations

EFR32MG24A020F1536IM48-BR offers increased memory (1536 kB Flash, 192 kB RAM) but uses reel packaging instead of tray.