Datasheet

551
ATmega169A/PA/329A/PA/649A/P/3290A/PA/6490A/P [DATASHEET]
8284E–AVR–02/2013
31.7.9 Pin Threshold and Hysteresis
Figure 31-399.Atmel ATmega649A: I/O pin Input Threshold voltage vs. V
CC
(V
IH
, I/O pin read as “1”).
Figure 31-400.ATmega649A: I/O pin Input Threshold voltage vs. V
CC
(V
IL
, I/O pin read as “0”).
85°C
25°C
-45°C
0.9
1.1
1.3
1.5
1.7
1.9
2.1
2.3
2.5
2.7
2.9
3.1
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
[V]
Threshold [V]
85°C
25°C
-45°C
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
[V]
Threshold [V]