Datasheet

ATmega164A/PA/324A/PA/644A/PA/1284/P
 2018 Microchip Technology Inc. Data Sheet Complete DS40002070A-page 489
Figure 30-272. ATmega644PA: I/O pin input hysteresis vs. V
CC
Figure 30-273. ATmega644PA: Reset pin input threshold vs. V
CC
(V
IH
, I/O pin read as ‘1’)
85°C
25°C
-40°C
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0.55
0.60
V
CC
[V]
Input Hysteresis [mV]
1.5 4.03.53.02.52.0 5.55.04.5
85°C
25°C
-40°C
0
0.5
1.0
1.5
2.0
2.5
V
CC
[V]
Threshold [V]
1.5 4.03.53.02.52.0 5.55.04.5