EFR32MG24B120F1536IM48-B

Overview

The EFR32MG24B120F1536IM48-B is a Bluetooth and Zigbee RF System on Chip from Silicon Labs' MG24 series. It integrates an ARM Cortex-M33 core operating at up to 78 MHz with 1536 kB Flash and 256 kB RAM. The device supports 2.4 GHz operation with a maximum data rate of 2 Mbps and delivers +20 dBm output power. It features -94.4 dBm sensitivity, operates between 1.71 V and 3.8 V, and includes Secure Vault High security with a 20-bit ADC. Packaged in QFN-48, it functions within -40°C to +125°C.

Feature Summary

• Integrates ARM Cortex-M33 processor with high-capacity memory for complex application hosting
• Provides robust wireless connectivity supporting both Bluetooth and Zigbee protocols
• Delivers high transmit power for extended range communication capabilities
• Incorporates Secure Vault High hardware security module for data protection

Applications

• Smart home automation controllers
• Industrial sensor nodes requiring high reliability
• Commercial building management systems
• High-performance mesh networking devices

Procurement Notes

Verify the specific suffix B indicates Secure Vault High configuration and +20 dBm output power when sourcing. Confirm QFN-48 package dimensions match PCB footprint requirements. Ensure supply chain partners provide valid RoHS compliance documentation. Check moisture sensitivity level ratings for proper storage handling procedures before assembly.

Selection Notes

Select this variant for designs demanding maximum flash capacity and enhanced security features within the MG24 family. The +20 dBm output suits applications requiring longer transmission distances compared to lower power variants. Consider the 256 kB RAM size for complex protocol stacks. Evaluate thermal performance given the +125°C operational rating for enclosed industrial environments.

Part Context

This component belongs to the Mighty Gecko MG24 series, representing Silicon Labs' advanced wireless SoC lineup. It succeeds previous generations by offering increased memory and processing power while maintaining low energy consumption profiles. The part is designed for developers needing a balance between computational capability and wireless performance in compact form factors.

Replacement Considerations

EFR32MG24B220F1536IM48-B offers similar specifications but may differ in specific regulatory certifications or minor silicon revisions. EFR32MG24A020F1024IM48-B provides lower memory capacity. Verify pin compatibility and software library support before substituting with other MG24 models.