Datasheet

346
7674F–AVR–09/09
ATmega164P/324P/644P
27.4 Pin Driver Strength
Figure 27-15. I/O Pin Output Voltage vs. Source Current (Vcc = 5V)
Figure 27-16. I/O Pin Output Voltage vs. Source Current (Vcc = 3.0V)
VOH
VCC 5V, Load current up to 20 mA
4.3
4.4
4.5
4.6
4.7
4.8
4.9
5
5.1
02468101214161820
Load current (mA)
V
OH
(V)
125
85
25
-45
VOH
VCC 3V, Load current up to 20 mA
1.5
1.7
1.9
2.1
2.3
2.5
2.7
2.9
3.1
0 2 4 6 8 101214161820
Load current (mA)
V
OH
(V)
125
85
25
-45