Atmel ATmega48PV Manual page 409

27.4.7 Pin Pull-Up
8025I–AVR–02/09
Figure 27-153.I/O Pin Pull-up Resistor Current vs. Input Voltage (V
I/O PIN PULL-UP RESISTOR CURRENT vs. INPUT VOLTAGE
60
50
40
30
20
10
0
0 0.2
Figure 27-154.I/O Pin Pull-up Resistor Current vs. Input Voltage (V
I/O PIN PULL-UP RESISTOR CURRENT vs. INPUT VOLTAGE
90
80
70
60
50
40
30
20
10
0
0
ATmega48P/88P/168P/328P
V = 1.8V
CC
0.4 0.6 0.8 1
V (V)
OP
V = 2.7V
CC
0.5 1 1.5
V (V)
OP
= 1.8 V).
CC
1.2 1.4 1.6 1.8
= 2.7 V).
CC
2 2.5
25 °C
85 °C
-40 °C
2
25 °C
85 °C
-40 °C
3
409