Datasheet

487
8272A–AVR–01/10
164A/164PA/324A/324PA/644A/644PA/1284/1284P
Figure 28-272.ATmega644PA: I/O Pin Input Hysteresis vs. V
CC
Figure 28-273.ATmega644PA: Reset Pin Input Threshold vs. V
CC
(V
IH
, I/O Pin Read as ‘1’).
85 °C
25 °C
-40 °C
0.2
0.25
0.3
0.35
0.4
0.45
0.5
0.55
0.6
1.522.533.544.555.5
V
CC
(V)
Input Hysteresis (mV)
85 °C
25 °C
-40 °C
0
0.5
1
1.5
2
2.5
1.5 2 2.5 33.5 4 4.5 5 5.5
V
CC
(V)
Threshold (V)