Datasheet

ATmega48PA/88PA/168PA [DATASHEET]
9223F–AVR–04/14
284
Figure 30-11. I/O Pin Output Voltage versus Source Current (V
CC
= 3V)
Figure 30-12. I/O Pin Output Voltage versus Source Current (V
CC
= 5V)
30.1.7 Pin Threshold and Hysteresis
Figure 30-13. I/O Pin Input Threshold Voltage versus V
CC
(V
IH
, I/O Pin read as ‘1’)
012345678910
I
OH
(mA)
2.8
2.7
3.0
3.1
2.9
2.6
2.5
2.4
2.3
2.2
V
OH
(V)
150
125
85
25
-40
0 2 4 6 8 1012 1416 1820
I
OH
(mA)
5
4.8
5.2
4.6
4.4
4.2
4
3.8
V
OH
(V)
150
125
85
25
-40
1.522.533.544.555.5
V
CC
(V)
3
2.5
3.5
4
2
1.5
1
0.5
0
Threshold (V)
150
125
85
25
-40