EFR32MG21B020F1024IM32-B

RF Transceiver ICS Overview

The EFR32MG21B020F1024IM32-B is a Mighty Gecko multiprotocol wireless System-on-Chip (SoC) from Silicon Labs, designed for robust IoT connectivity. It integrates an ARM Cortex-M33 processor with 80 MHz clock speed, 1 MB of flash memory, and 96 kB of RAM. The device features a 2.4 GHz RF transceiver supporting Bluetooth 5.1, Thread, and Zigbee protocols. Key electrical parameters include a maximum output power of 20 dBm, receive sensitivity of -104.9 dBm, and operation over a voltage range of 1.71 V to 3.8 V. It provides 20 GPIOs and supports interfaces including I2C, SPI, UART, and USART within a 32-VFQFN package.

RF Transceiver ICS Feature Summary

• Supports multiprotocol mesh networking including Bluetooth 5.1, Thread, and Zigbee on a single chip.
• Integrates Secure Vault technology with physical unclonable function (PUF) hardware for enhanced security.
• Features high-performance ARM Cortex-M33 core with DSP and floating-point unit capabilities.
• Includes rich analog and digital peripherals such as a 12-bit ADC and packet transmission arbitration.

RF Transceiver ICS Applications

• Smart lighting systems
• IoT voice assistants
• Home automation gateways
• Smart metering devices

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'B' indicates Bluetooth 5.1 support compared to variant 'A'. Confirm the '020' designation corresponds to the 20 dBm output power level. Ensure the IM32 package matches the required QFN-32 footprint. Check RoHS compliance status and moisture sensitivity level requirements for your assembly process.

RF Transceiver ICS Selection Notes

Select this model when high output power and Bluetooth 5.1 compatibility are required. Compare against lower-power variants if extended battery life is critical. Consider the 1 MB flash size for complex application logic. Evaluate thermal performance given the 125°C operating temperature range.

RF Transceiver ICS Part Context

This component belongs to the EFR32MG21 Mighty Gecko family, optimized for line-powered applications requiring strong RF performance. It serves as a central processing unit for secure, multi-protocol wireless communication in industrial and consumer IoT environments.

RF Transceiver ICS Replacement Considerations

EFR32MG21B010F1024IM32-B offers identical form factor but with 10 dBm output power. EFR32MG21A020F1024IM32-B supports Bluetooth 5.0 instead of 5.1. Verify pinout compatibility before substitution.

RF Transceiver ICS FAQ

What is the maximum data rate supported by this SoC?

The device supports a maximum data rate of 2 Mbps for Bluetooth Low Energy connections.

Does this part include hardware security features?

Yes, it includes Secure Vault technology with physical unclonable function (PUF) hardware for key storage and protection.