Datasheet

30.9. Pin Threshold and Hysteresis
Figure 30-25. I/O Pin Input Threshold vs. V
CC
(V
IH
, I/O Pin Read as ‘1’)
85 °C
25 °C
-40 °C
0
0.5
1
1.5
2
2.5
3
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
Thres hold (V)
Figure 30-26. I/O Pin Input Threshold vs. V
CC
(V
IL
, I/O Pin Read as ‘0’)
85 °C
25 °C
-40 °C
0
0.5
1
1.5
2
2.5
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
Threshold (V)
Atmel ATmega644A [DATASHEET]
Atmel-42716C-ATmega644A_Datasheet_Complete-10/2016
421