Datasheet
– VDDIN = 1.8V, CPU is running on Flash with three wait states
• Wake up time from sleep mode is measured from the edge of the wakeup signal to the execution of
the first instruction fetched in flash.
• Oscillators
– XOSC (crystal oscillator) stopped
– XOSC32K (32 kHz crystal oscillator) running with external 32kHz crystal
– DFLL48M using XOSC32K as reference and running at 48 MHz
• Clocks
– DFLL48M 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
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 987