EFR32BG21A020F768IM32-BR

RF Transceiver ICS Overview

The EFR32BG21A020F768IM32-BR is a Bluetooth Low Energy system-on-chip from Silicon Labs, featuring an ARM Cortex-M33 core. It operates at 2.4 GHz with a maximum data rate of 2 Mbps and delivers 20 dBm output power. The device includes 768 kB of flash memory and 64 kB of RAM. Supply voltage ranges from 1.71 V to 3.8 V, with receive current at 8.8 mA and transmit current at 33.8 mA. Sensitivity is -104.9 dBm. It supports interfaces including I2C, SPI, UART, and GPIO, housed in a 32-QFN package.

RF Transceiver ICS Feature Summary

• Integrates a high-performance ARM Cortex-M33 processor for efficient code execution.
• Provides robust wireless connectivity via Bluetooth v5.1 protocol support.
• Features integrated RF transceiver with optimized power consumption profiles.

RF Transceiver ICS Applications

• Bluetooth mesh networking nodes
• Smart home sensor devices
• Wearable health monitoring electronics

RF Transceiver ICS Procurement Notes

Verify the specific suffix BR indicates tape-and-reel packaging configuration when sourcing components. Confirm that the part number matches the exact memory and pinout requirements for your PCB layout. Ensure compatibility with the intended firmware development environment provided by Silicon Labs. Check for any recent production changes or errata sheets relevant to this specific batch before finalizing procurement plans.

RF Transceiver ICS Selection Notes

Choose this component for applications requiring moderate flash capacity and standard Bluetooth LE performance. It is suitable for designs needing 20 dBm output power within a compact QFN footprint. Consider alternative variants if higher sensitivity or different memory sizes are required. Evaluate thermal management needs given the operating temperature range up to 125°C.

RF Transceiver ICS Part Context

This model belongs to the Blue Gecko series, designed for cost-effective Bluetooth solutions. It shares architectural similarities with other BG21 variants but differs in memory size and specific interface configurations. The series targets consumer electronics and IoT devices requiring reliable wireless communication.

RF Transceiver ICS Replacement Considerations

Consult official substitution lists for equivalent parts with similar pinouts and electrical characteristics. Verify compatibility regarding flash size and peripheral availability before swapping components.