• Core

  Cortex-M33, 39 MHz

• Family

  EFR32FG23 Series

• Sub-Family

  EFR32FG23B021

• CMSIS Pack

  GeckoPlatform_EFR32FG23_DFP

- 32-bit ARM Cortex-M33 core with 78 MHz maximum operating frequency
- Up to 512 kB of flash and 64 kB of RAM
- Energy-efficient radio core with low active and sleep currents
- Integrated PA with up to 20 dBm (Sub-GHz) TX power
- Robust peripheral set and up to 31 GPIO

The EFR32FG23 Flex Gecko SoC is an ideal solution for sub-GHz "Internet of Things" for smart home, security, lighting, building automation, and metering. The high-performance sub-GHz radio provides long range and is not susceptible to 2.4 GHz interference from technologies like Wi-Fi.