94
Digital Electronics
'1'
I/P
I/P
(Volts)
1
2
3
4
t(ms)
4
(a)
V (volts)
in
O/P
Logic '1'
1
2
Logic '1'
Logic '0'
(c)
t (ms)
t (ms)
O/P
I/P
(Volts)
2
1
(b)
Figure 4.36 Example 4.12.