I2C Pins

Refer to I/O Multiplexing and Considerations to get the list of I2C pins.

Table 1. I2C Pins Characteristics in I2C configuration
Symbol Parameter Condition Min. Typ. Max. Units
RPULL Pull-up - Pull-down resistance I 20 40 60
VIL Input low-level voltage VDD=1.62V-2.7VI - - 0.25*VDD V
VDD=2.7V-3.63V - - 0.3*VDD
VIH Input high-level voltage VDD=1.62V-2.7V 0.7*VDD - -
VDD=2.7V-3.63VI 0.55*VDD - -
VHYS Hysteresis of Schmitt trigger inputs   0.08*VDD - -
VOL Output low-level voltage VDD> 2.0V,

IOL=3mA

- - 0.4
VDD≤2.0V
, IOL=2mA - - 0.2*VDD
IOL Output low-level current VOL =0.4V

Standard, Fast and HS Modes

3     mA
VOL =0.4V

Fast Mode +

20 - -
VOL =0.6V 6 - -
fSCL SCL clock frequency I - - 3.4 MHz

I2C pins timing characteristics can be found in SERCOM in I2C Mode Timing.