Atmel Xplained Pro Evaluation Kit for the ATSAMD21J18A Microcontroller ATSAMD21-XPRO ATSAMD21-XPRO Data Sheet

937

Atmel | SMART SAM D21 [DATASHEET]

Atmel-42181C–SAM-D21_Datasheet–07/2014

 to get the list of I

2

C pins.

I

2

.

XOSC pins behave as normal pins when used as normal I/Os. Refer to table “Normal I/O Pins Characteristics”.

XOSC32 pins behave as normal pins when used as normal I/Os. Refer to table “Normal I/O Pins Characteristics”.

Reset pin has the same electrical characteristics as normal I/O pins. Refer to table “Normal I/O Pins Characteristics”.

R

PULL

Pull-up - Pull-down resistance

I

20

40

60

k

Ω

V

IL

Input low-level voltage

V

DD

=1.62V-2.7V

I

-

-

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

I

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,

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

I

-

-

3.4

MHz