
307
ATmega16M1/32M1/64M1 [DATASHEET]
8209E–AVR–11/2012
29.3
Pin thresholds and hysteresis
Figure 29-7. I/O pin input threshold voltage versus V
CC.
VIH, I/O pin read as '1'.
Figure 29-8. I/O pin input threshold voltage versus V
CC.
VIL, I/O pin read as '0'.
85°C
25°C
-40°C
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
2.8
3.0
VCC [V]
Thr
e
s
h
ol
d
[V]
5.5
5.0
4.5
4.0
3.5
3.0
2.5
85°C
25°C
-40°C
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
2.6
V
CC [V]
Threshold
[V]
5.5
5.0
4.5
4.0
3.5
3.0
2.5