Datasheet

37.9.2 I2C Pins
Refer to I/O Multiplexing and Considerations to get the list of I
2
C pins.
Table 37-16. I
2
C Pins Characteristics in I
2
C configuration
Symbol Parameter Condition Min. Typ. Max. Units
V
IL
Input low-level voltage V
DD
=1.62V-2.7V - - 0.25*V
DD
V
V
DD
=2.7V-3.63V - - 0.3*V
DD
V
IH
Input high-level voltage V
DD
=1.62V-2.7V 0.7*V
DD
- -
V
DD
=2.7V-3.63V 0.55*V
DD
- -
V
HYS
Hysteresis of Schmitt trigger
inputs
0.08*V
DD
- -
V
OL
Output low-level voltage V
DD
> 2.0V,
I
OL
=3mA
- - 0.4
V
DD
≤2.0V
, I
OL
=2mA
- - 0.2*V
DD
I
OL
Output low-level current V
OL
=0.4V
Standard, Fast and HS
Modes
3 mA
V
OL
=0.4V
Fast Mode +
20 - -
V
OL
=0.6V 6 - -
f
SCL
SCL clock frequency - - 3.4 MHz
I
2
C pins timing characteristics can be found in 37.16.3 SERCOM in I2C Mode Timing.
37.9.3 XOSC Pin
XOSC pins behave as normal pins when used as normal I/Os. Refer to table 37.9.1 Normal I/O Pins.
37.9.4 XOSC32 Pin
XOSC32 pins behave as normal pins when used as normal I/Os. Refer to table 37.9.1 Normal I/O Pins.
37.9.5 External Reset Pin
Reset pin has the same electrical characteristics as normal I/O pins. Refer to table 37.9.1 Normal I/O
Pins.
37.10 Injection Current
Stresses beyond those listed in the table below may cause permanent damage to the device. This is a
stress rating only and functional operation of the device at these or other conditions beyond those
indicated in the operational sections of this specification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
SAM D21 Family
Electrical Characteristics
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40001882D-page 997