Logic Families
169
A
B
C
D
E
F
G
H
Y
Y =(ABCD+EFGH)
——————
(a)
+V DD
D
C
B
A
H
G
F
E
Y=(A+B+C+D) (E+F+G+H)
Y
E
A
B
C
D
F
G
H
(b)
+V DD
Figure 5.53 Example 5.7.