Silicon Labs

EFR32FG23L Sub-GHz Wireless SoC

Silicon Labs SoC supports access control, key fobs, smart city sensors, and industrial monitoring

Image of Silicon Labs EFR32FG23L Sub-GHz Wireless SoCSilicon Labs EFR32FG23L wireless SoCs help resource-constrained IoT applications find life with the FG23L Series 2, 32-bit wireless MCUs. These SoCs offer ultra-low power consumption, high RF performance, integrated security features, optimized memory and processing, and a rich peripheral set. It features Secure Vault™ Mid for enhanced security and is pin-compatible with the standard FG23, enabling easy migration to higher memory or fully featured options. The FG23L is ideal for proprietary wireless networks.

Features
  • 32-bit Arm® Cortex®-M33 core with 78 MHz (max) for main application core
  • Cortex M0+ core for radio
  • 128 kB of Flash and 32 kB of RAM
  • High-performance radio with up to +20 dBm output power
  • Rx sensitivity: 125.8 dBm (4.8 kbps, 915 MHz O-QPSK)
  • Energy-efficient design with low active and sleep currents
  • Robust peripheral set and 23 GPIOs
  • Secure Vault Mid
Applications
  • Access controls
  • Key fobs
  • Smart city sensors
  • Industrial monitoring

EFR32FG23L Sub-GHz Wireless SoC

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
FG23L, 128KB FLASH, 32KB RAM, +1EFR32FG23L010F128GM40-CFG23L, 128KB FLASH, 32KB RAM, +1980 - Immediate$59.27View Details
FG23L, 128KB FLASH, 32KB RAM, +2EFR32FG23L020F128GM40-CFG23L, 128KB FLASH, 32KB RAM, +2980 - Immediate$64.29View Details
Published: 2025-10-23