Datasheet

– XOSC32K (32 kHz crystal oscillator) stopped

– XOSC (crystal oscillator) running with external 32MHz clock on XIN

– DFLL48M stopped

• Clocks

– XOSC used as main clock source, except otherwise specified

– CPU, AHB clocks undivided

– APBA clock divided by 4

– APBB and APBC bridges off

• The following AHB module clocks are running: NVMCTRL, APBA bridge

– All other AHB clocks stopped

• The following peripheral clocks running: PM, SYSCTRL, RTC

– All other peripheral clocks stopped

• I/Os are inactive with internal pull-up

• CPU is running on flash with 1 wait states

• Cache enabled

• BOD33 disabled

SAM D21 Family

Electrical Characteristics at 105°C

Datasheet Complete

DS40001882D-page 1045