EFR32MG1B132F256GM32-B0

Overview

The EFR32MG1B132F256GM32-B0 is a Mighty Gecko System-on-Chip featuring an ARM Cortex-M4 core operating at 40 MHz. It integrates a 2.4 GHz RF transceiver with 19.5 dBm output power and -92.5 dBm sensitivity, supporting up to 1 Mbps data rates. The device includes 256 kB of flash memory and 32 kB of RAM. Operating voltage ranges from 1.85 V to 3.8 V, with receive current at 8.7 mA and transmit current at 8.2 mA. It utilizes a QFN-32 package and supports Zigbee protocols.

Feature Summary

• Integrates a 40 MHz ARM Cortex-M4 microcontroller with substantial program and data memory for complex application execution.
• Features a high-performance 2.4 GHz radio subsystem capable of robust wireless connectivity with optimized power consumption profiles.
• Supports mesh networking standards through integrated protocol stack capabilities within the system-on-chip architecture.

Applications

• Zigbee smart home lighting controls
• Wireless sensor network nodes
• IoT security access devices

Procurement Notes

Verify component authenticity by cross-referencing the manufacturer part number against official Silicon Labs documentation. Confirm that the specific suffix indicates the correct package variant and temperature range. Check for obsolescence status as this model may be marked as not recommended for new designs in certain distributor catalogs. Ensure compliance with RoHS requirements specified in the datasheet before integration into final products.

Selection Notes

Select this component when designing applications requiring Zigbee compatibility with moderate memory requirements. The 256 kB flash and 32 kB RAM configuration suits standard mesh node implementations. Consider the 19.5 dBm output power for typical indoor range requirements. Evaluate the QFN-32 package dimensions against PCB space constraints and thermal management needs for surface mount assembly processes.

Part Context

This part belongs to the Mighty Gecko family of wireless SoCs from Silicon Labs. It targets low-power wireless applications using the ARM Cortex-M4 architecture. The series provides integrated radio and MCU functionality to reduce bill-of-materials complexity. It represents a generation of chips designed for efficient mesh networking deployments in consumer and industrial IoT sectors.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult official Silicon Labs documentation for current product line replacements or next-generation alternatives.