
542
8272E–AVR–04/2013
ATmega164A/PA/324A/PA/644A/PA/1284/P
Figure 29-371.Atmel ATmega1284P: I/O pin input threshold vs. V
CC (VIL, I/O pin read as ‘0’).
Figure 29-372.Atmel ATmega1284P: I/O pin input hysteresis vs. V
CC.
85°C
25°C
-40°C
0
0.5
1.0
1.5
2.0
2.5
VCC [V]
Thre
s
hold
[V]
1.5
4.0
3.5
3.0
2.5
2.0
5.5
5.0
4.5
85°C
25°C
-40°C
0.25
0.30
0.35
0.40
0.45
0.50
0.55
0.60
VCC [V]
Inp
u
thy
s
tere
s
is
[mV]
1.5
4.0
3.5
3.0
2.5
2.0
5.5
5.0
4.5