Devices EFR32MG27 Series EFR32MG27 Series Silicon Labs Devices 4 EFR32MG27C140F768IM32 EFR32MG27C140 Cortex-M33 EFR32MG27C140F768IM40 EFR32MG27C140 Cortex-M33 EFR32MG27C230F768IM32 EFR32MG27C230 Cortex-M33 EFR32MG27C230F768IM40 EFR32MG27C230 Cortex-M33