Atmel ATmega48PV

366
8025I–AVR–02/09
ATmega48P/88P/168P/328P
27.2.9 Pin Threshold and Hysteresis
Figure 27-71. I/O Pin Input Threshold Voltage vs. V
CC
(V
IH
, I/O Pin read as ‘1’).
Figure 27-72. I/O Pin Input Threshold Voltage vs. V
CC
(V
IL
, I/O Pin read as ‘0’).
Input
I/O PIN INPUT THRESHOLD VOLTAGE vs. V
CC
VIH, IO PIN READ AS '1'
85 °C
25 °C
-40 °C
0
0.5
1
1.5
2
2.5
3
3.5
4
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
Threshold (V)
I/O PIN INPUT THRESHOLD VOLTAGE vs. V
CC
VIL, IO PIN READ AS '0'
85 °C
25 °C
-40 °C
0
0.5
1
1.5
2
2.5
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
Input
Threshold (V)