Datasheet

34.1.9 Pin Threshold and Hysteresis
Figure 34-25. ATmega48A: I/O Pin Input Threshold Voltage vs. V
CC
(V
IH
, I/O Pin read as ‘1’)
85 °C
25 °C
-40 °C
0
0.5
1
1.5
2
2.5
3
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
Threshold (V)
Figure 34-26. ATmega48A: I/O Pin Input Threshold Voltage vs. V
CC
(V
IL
, I/O Pin read as ‘0’
CC IL
85 °C
25 °C
-40 °C
0
0.5
1
1.5
2
2.5
1.5 2 2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
Threshold (V)
ATmega48A/88A/168A
Typical Characteristics (TA = -40°C to 85°C)
© 2018 Microchip Technology Inc.
Datasheet Complete
DS40002007A-page 408