SiLEFR32MG21B020F1024IM32-B

Overview

The EFR32MG21B020F1024IM32-B is a high-performance Wireless SoC from the Mighty Gecko Series 2 family, featuring an 80 MHz ARM Cortex-M33 core with TrustZone. It supports multiple 2.4 GHz mesh protocols including Zigbee, Thread, and Bluetooth 5.1 with a dedicated 20 dBm output power for extended range. This part is specifically designed for secure, line-powered IoT applications that require robust wireless connectivity and advanced hardware-level security.

Why Choose This Part

The SoC integrates a high-gain 20 dBm power amplifier and -104.9 dBm sensitivity, significantly improving link budget and reducing the need for external range extenders. Its Cortex-M33 architecture provides a 20 percent performance increase over previous M4-based designs while consuming only 50.9 microamps per MHz in active mode. Hardware acceleration for cryptography and DPA countermeasures provide industry-leading security for mission-critical deployments.

Applications

Getting Started

Begin development with the Silicon Labs Simplicity Studio 5 IDE, which provides the wireless stacks and configuration tools needed for mesh networking. The Wireless Gecko Starter Kit (SLWSTK6006A) is the primary hardware platform for evaluating this SoC family. Use the onboard JTAG/SWD interface for debugging and Simplicity Commander for secure production programming.

EFR32MG21 Family

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