Recall that the functions associated with logic gates describe their operation. Accordingly, the interconnected assembly of these gates may be used to create any logic function. The resulting architecture formed by the grouping of these gates is referred to as a logic circuit.
The truth tables for logic circuits are
constructed by applying each of the possible 
input
combinations to the circuit inputs and determining the corresponding output.
Figure 1-9 illustrates the logic circuit diagram
for the function 
and the corresponding truth table is
listed in Table 1-7.
INPUT |
OUTPUT |
|
A |
B |
 |
0 |
0 |
0 |
0 |
1 |
0 |
1 |
0 |
1 |
1 |
1 |
1 |
Table 1-7 Truth table for function X=AB
Copyright © Adrian Als , 1999
This page was last modified: Wednesday, April 12, 2000