Pin Thresholds And Hysteresis - Atmel ATtiny25 Manual

23.6

Pin Thresholds and Hysteresis

ATtiny25/45/85
168
Figure 23-25. I/O Pin Input Threshold Voltage vs. V
3
2.5
2
1.5
1
0.5
0
1.5 2
Figure 23-26. I/O Pin Input Threshold Voltage vs. V
2.5
2
1.5
1
0.5
0
1.5 2
I/O P IN INP UT THRES HOLD VOLTAGE vs . V
VIH, IO PIN READ AS '1'
2.5 3 3.5 4
V (V)
CC
I/O P IN INP UT THRES HOLD VOLTAGE vs . V
VIL, IO PIN READ AS '0'
2.5 3 3.5 4
V (V)
CC
(VIH, I/O Pin Read As '1')
CC
C C
-40 ˚C
25 ˚C
85 ˚C
125 ˚C
4.5 5 5.5
(VIL, I/O Pin Read As '0')
CC
C C
125 ˚C
85 ˚C
25 ˚C
-40 ˚C
4.5 5 5.5
7598H–AVR–07/09