EFR32FG23A020F256GM40-CR

RF Transceiver ICS Overview

The EFR32FG23A020F256GM40-CR is a Sub-GHz System-on-Chip from Silicon Labs featuring an ARM Cortex-M33 core operating at 78 MHz. It integrates 256 kB of flash memory and 32 kB of RAM within a QFN-40 package. The device supports frequencies including 868, 915, and 920 MHz with a maximum data rate of 2 Mbps. It delivers +20 dBm output power and achieves -96.9 dBm sensitivity. Operating voltage ranges from 1.71 V to 3.8 V, with receive current at 4.2 mA and transmit current at 85.5 mA. It functions between -40°C and +85°C.

RF Transceiver ICS Feature Summary

• Integrates a high-performance 78 MHz ARM Cortex-M33 processor with DSP instructions for efficient signal processing.
• Features a dedicated Sub-GHz radio with integrated power amplifier for long-range communication resistant to 2.4 GHz interference.
• Includes industry-leading security capabilities with Secure Vault support for fast encryption and secure boot.

RF Transceiver ICS Applications

• Smart home devices
• Security systems
• Building automation
• Metering applications

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'CR' against official documentation to confirm tape-and-reel packaging status. Ensure the selected variant matches the required frequency band and memory configuration. Cross-reference the manufacturer part number with authorized distributors to confirm availability and authenticity. Validate that the QFN-40 package dimensions align with the target PCB footprint requirements.

RF Transceiver ICS Selection Notes

Select this component when a balance of moderate memory capacity and high RF performance is required for Sub-GHz IoT projects. The 256 kB flash size suits applications needing substantial code storage without maximizing cost. Consider the +20 dBm output for extended range needs compared to lower-power variants. Evaluate the 32 kB RAM limit against application complexity before choosing over larger memory options.

RF Transceiver ICS Part Context

This part belongs to the EFR32FG23 Series 2 family, designed for secure Sub-GHz wireless connectivity. It shares development tools and SDKs with other members of the series, facilitating migration between different memory and RF power configurations within the same ecosystem.

RF Transceiver ICS Replacement Considerations

The EFR32FG23A020F512GM40 offers increased memory but maintains similar RF characteristics. For lower power consumption, consider variants with reduced output power such as the EFR32FG23A011 series. Verify pin compatibility and software portability when substituting with other FG23 models.