The Silicon Labs EFR32MG21 is a highly integrated multiprotocol wireless System-on-Chip (SoC) designed for energy-efficient and high-performance Internet of Things (IoT) applications. It combines an 80 MHz ARM Cortex-M33 processor with advanced security features and a versatile 2.4 GHz radio transceiver, supporting protocols like Bluetooth Low Energy, Zigbee, and Thread.
Key Features
- High-performance 32-bit ARM Cortex-M33 core with DSP extensions and FPU
- Up to 1024 kB flash and 96 kB RAM
- Integrated 2.4 GHz radio with up to 20 dBm transmit power
- Advanced security capabilities including TRNG, Secure Boot, and cryptographic acceleration
- Optimized for low energy consumption across multiple operating modes
- Rich peripheral set for diverse connectivity needs
Applications
The EFR32MG21 family is ideal for a wide array of IoT applications, including:
- Multiprotocol IoT devices
- Smart lighting systems
- Connected home devices
- IoT gateways and digital assistants
- Building automation and security solutions
For more information on supported Bluetooth capabilities, visit silabs.com/bluetooth-hardware.
Technical Overview
This datasheet details the electrical characteristics, performance specifications, and ordering information for the EFR32MG21 family. It covers MCU and radio performance, power consumption, timing parameters, and package details.
