EFR32BG1B232F128GM48-B0

RF Transceiver ICS Overview

The EFR32BG1B232F128GM48-B0 is a Blue Gecko System on Chip (SoC) from Silicon Labs, designed for Bluetooth Low Energy applications. It integrates an ARM Cortex-M4 core operating at up to 40 MHz with 128 kB of flash memory and 32 kB of RAM. The device supports the 2.4 GHz frequency band with a maximum data rate of 2 Mbps and delivers a transmit output power of 10.5 dBm. It features a receive sensitivity of -90.7 dBm and operates within a voltage range of 1.8 V to 3.8 V. Current consumption is specified at 8.8 mA during reception and approximately 133 mA during transmission. The component is housed in a 48-VFQFN package.

RF Transceiver ICS Feature Summary

• Integrates an ARM Cortex-M4 processor with substantial non-volatile memory and static random-access memory for efficient code execution.
• Supports Bluetooth Low Energy protocols at 2.4 GHz with optimized RF performance for reliable wireless communication.
• Features low current consumption profiles during active reception and transmission modes to extend battery life.

RF Transceiver ICS Applications

• Bluetooth Low Energy beacon devices
• Wireless sensor networks
• Smart home automation controllers

RF Transceiver ICS Procurement Notes

Verify the exact part number suffix against official Silicon Labs documentation to confirm package type and temperature rating. Ensure compatibility with required firmware libraries for the Blue Gecko series. Check for obsolescence status as some variants may be discontinued. Confirm supply chain availability through authorized distributors only.

RF Transceiver ICS Selection Notes

Select this model when a balance of moderate flash capacity and standard Bluetooth connectivity is required. It is suitable for applications not needing high-power transmission or extensive memory. Compare against higher-performance BG14 or MG1 series if additional power or protocol support is necessary. Consider the QFN-48 footprint for PCB layout constraints.

RF Transceiver ICS Part Context

This component belongs to the Blue Gecko family of RF SoCs, which are optimized for Bluetooth Low Energy applications. The BG1B variant represents a specific generation within this lineup, offering a cost-effective solution for basic BLE connectivity needs. It shares architectural similarities with other members of the EFR32BG series but differs in memory size and RF power specifications.

RF Transceiver ICS Replacement Considerations

Public confirmed substitute part numbers include EFR32BG1B232F128GM48-C0R and EFR32BG1B232F128GM48-B0R. These variants offer similar specifications but may differ in packaging or reel configuration. Verify pinout and electrical characteristics before substitution.