EFR32BG21B010F512IM32-B

RF Transceiver ICS Overview

The EFR32BG21B010F512IM32-B is an RF System on a Chip from Silicon Labs' Blue Gecko series, designed for Bluetooth applications. It integrates an ARM Cortex-M33 core operating at up to 80 MHz with 512 kB of program memory and 64 kB of RAM. The device supports Bluetooth 5.1 protocols over the 2.4 GHz ISM band, delivering a maximum data rate of 2 Mbps. It features a 10 dBm output power amplifier and achieves a receiver sensitivity of -94.4 dBm. Power supply ranges from 1.71 V to 3.8 V, with typical receive current of 8.8 mA and transmit current of 33.8 mA. It includes 20 GPIOs and interfaces such as I2C and USART in a QFN-32 package.

RF Transceiver ICS Feature Summary

• Integrates an ARM Cortex-M33 processor with substantial non-volatile memory and static random-access memory for complex application execution.
• Supports Bluetooth 5.1 wireless communication standards with optimized radio performance for reliable connectivity.
• Features a high-efficiency radio transceiver capable of significant output power and high sensitivity for extended range.
• Provides multiple general-purpose input/output pins and standard serial communication interfaces for peripheral integration.

RF Transceiver ICS Applications

• Bluetooth mesh networking nodes
• Smart home sensor devices
• Wearable electronics
• Industrial control peripherals

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'B' indicates the tray packaging configuration when ordering. Confirm that the component meets RoHS compliance requirements for your target market. Ensure the QFN-32 package dimensions align with your PCB footprint design. Check for any moisture sensitivity level restrictions during soldering processes. Validate that the 2.4 GHz frequency range complies with regional regulatory standards.

RF Transceiver ICS Selection Notes

Select this model when Bluetooth 5.1 support is required alongside moderate memory capacity. Compare against higher-power variants if extended range is necessary. Consider the 80 MHz clock speed for processing-intensive tasks. Evaluate the 10 dBm output power against link budget requirements. Ensure the 20 GPIO count suffices for interface needs without additional multiplexing.

RF Transceiver ICS Part Context

This component belongs to the EFR32BG21 Blue Gecko family, which targets Bluetooth-centric IoT applications. It shares the same core architecture and radio block as other BG21 variants but differs in memory size and packaging. The BG21 series is positioned between the lower-end BG20 and the multi-protocol MG21 series. It utilizes the same QFN-32 form factor common across many Silicon Labs sub-GHz and 2.4 GHz SoCs.

RF Transceiver ICS Replacement Considerations

EFR32BG21B010F512IM32-DR offers identical electrical specifications with reel packaging instead of tray. EFR32BG21A010F512IM32-B may serve as a substitute if A-series silicon revisions are acceptable. Verify pinout compatibility before swapping with EFR32MG21 variants due to potential protocol differences.