Datasheet

570
8284D–AVR–6/11
ATmega169A/PA/329A/PA/3290A/PA/649A/P/6490A/P
Figure 30-401.ATmega649A: I/O Pin Input Hysteresis vs. V
CC
Figure 30-402.ATmega649A: Reset Input Threshold Voltage vs. V
CC
(V
IH
,Reset Pin Read as “1”)
85 °C
25 °C
-45 °C
0.25
0.3
0.35
0.4
0.45
0.5
0.55
0.6
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
Input Hysteresis (V)
-45 °C
85 °C
25 °C
-45 °C
0.8
1
1.2
1.4
1.6
1.8
2
2.2
2.4
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
Threshold (V)