BGM121A256V2R

RF Transceiver Modules And Modems Overview

The BGM121A256V2R is a Bluetooth v4.2 System in Package (SiP) module from Silicon Labs' Blue Gecko series, designed for IoT applications. It integrates an ARM Cortex-M4 processor with 256 kB flash and 32 kB RAM. The module operates at 2.4 GHz with a frequency range of 2.4 GHz to 2.4835 GHz, supporting GFSK modulation and a data rate of 1 Mbps. Key electrical parameters include +8 dBm output power, -90 dBm receiver sensitivity, 8.2 mA transmit current, and 9 mA receive current. It functions within a supply voltage range of 1.85 V to 3.8 V and supports serial interfaces including I2C, SPI, UART, and USART.

RF Transceiver Modules And Modems Feature Summary

• Integrates an onboard Bluetooth stack and DC-DC converter within a compact surface-mount package.
• Features an integrated chip antenna eliminating the need for external RF components.
• Combines a 32 MHz ARM Cortex-M4 core with substantial non-volatile memory for complex application logic.

RF Transceiver Modules And Modems Applications

• Smart home devices and sensors
• Industrial wireless monitoring systems
• Consumer electronics requiring BLE connectivity

RF Transceiver Modules And Modems Procurement Notes

Verify the specific suffix 'V2R' against official Silicon Labs documentation to confirm the exact hardware revision and packaging type. Ensure compatibility with the target PCB footprint, as the 56-SMD module requires precise layout adherence. Confirm that the required firmware stack version aligns with the module's certified capabilities before integration into the final product design.

RF Transceiver Modules And Modems Selection Notes

Select this model when a complete, certified Bluetooth solution is required to minimize RF design complexity. The integrated architecture suits designs needing moderate processing power alongside wireless connectivity. Consider the operating temperature range and supply voltage requirements to ensure suitability for the intended environmental conditions and power budget constraints.

RF Transceiver Modules And Modems Part Context

This component belongs to the Blue Gecko family, representing a line of highly integrated wireless microcontrollers. The BGM121 variant specifically targets Bluetooth Low Energy applications, offering a balance of performance and power efficiency. It serves as a drop-in replacement for discrete RF transceivers, simplifying the development cycle for manufacturers implementing short-range wireless communication protocols.

RF Transceiver Modules And Modems Replacement Considerations

BGM121A256V1R