Devices EFR32BG26 Series EFR32BG26B321 EFR32BG26B321 Silicon Labs Devices 3 EFR32BG26B321F1024IM68 EFR32BG26B321 Cortex-M33 EFR32BG26B321F2048IM48 EFR32BG26B321 Cortex-M33 EFR32BG26B321F2048IM68 EFR32BG26B321 Cortex-M33