Datasheet

382
2490R–AVR–02/2013
ATmega64(L)
Pin Thresholds and
Hysteresis
Figure 241. I/O Pin Input Threshold Voltage vs. V
CC
(V
IH
, I/O Pin Read as '1')
Figure 242. I/O Pin Input Threshold Voltage vs. V
CC
(V
IL
, I/O Pin Read as '0')
I/O PIN INPUT THRESHOLD VOLTAGE vs. V
cc
VIH, IO PIN READ AS '1'
105 °C
85 °C
25 °C
-40 °C
1
1.2
1.4
1.6
1.8
2
2.2
2.4
2.5 3 3.5 4 4.5 5 5.5
V
cc
(V)
Threshold (V)
I/O PIN INPUT THRESHOLD VOLTAGE vs. V
cc
VIL, IO PIN READ AS '0'
105 °C
85 °C
25 °C
-40 °C
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
2.5 3 3.5 4 4.5 5 5.5
V
CC
(V)
Thres hold (V )