Atmel AT90PWM2 Manual page 321

AT90PWM2/3/2B/3B
322
Figure 27-20. I/O Pin Input Threshold Voltage vs. V
I/O PIN (including PE1 & PE2) INPUT THRESHOLD VOLTAGE vs. V
2,5
2
1,5
1
0,5
0
2 2,5
Figure 27-21. I/O Pin Input HysteresisVoltage vs. V
0.6
-40 C
0.5
25 C
0.4
85 C
0.3
0.2
0.1
0
1.5 2 2.5
CC
VIL, IO PIN READ AS '0'
3 3,5 4
V (V)
CC
CC
I/O PIN INPUT HYSTERESIS vs. V
3 3.5
V (V)
CC
(VIL, I/O Pin Read As '0')
CC
4,5 5 5,5
CC
4 4.5 5
-40 °C
25 °C
85 °C
105 °C
5.5
4317I–AVR–01/08