EFR32SG23B020F512IM40-CR

Overview

The EFR32SG23B020F512IM40-CR is a Sub-GHz RF System on Chip (SoC) from Silicon Labs, featuring an ARM Cortex-M33 core operating at up to 78 MHz. It integrates 512 kB of flash memory and 64 kB of RAM within a 40-QFN package. The transceiver supports +20 dBm output power with -96.2 dBm sensitivity across multiple Sub-GHz bands. Supply voltage ranges from 1.71 V to 3.8 V, with receive current of 3.6 mA and transmit current of 8.2 mA.

Feature Summary

• Integrates ARM Cortex-M33 processor with Secure Vault-High security features
• Provides high-power Sub-GHz transmission capability up to +20 dBm
• Supports multiple industrial, scientific, and medical frequency bands

Applications

• Smart metering infrastructure
• Industrial wireless sensor networks
• Home automation control systems

Procurement Notes

Verify the suffix 'CR' indicates tape and reel packaging when ordering. Confirm the specific Sub-GHz frequency band support required for your target region against the datasheet specifications. Ensure the 40-QFN thermal pad soldering process aligns with your assembly capabilities for reliable operation.

Selection Notes

Select this component for applications requiring high output power and robust security in Sub-GHz communications. Compare against EFR32FG23 or BG22 series if WiFi or Bluetooth functionality is needed instead. Consider the 78 MHz CPU speed and 64 kB RAM for complex protocol stack execution.

Part Context

This part belongs to the Wireless Gecko SG23 family, designed specifically for Sub-GHz long-range communication needs. It complements the broader EFR32 portfolio by offering specialized low-power performance for utility and industrial IoT markets without the overhead of higher-frequency protocols.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.