Design Problem
A combinational circuit has a 4 inputs (A, B, C, D) and a single output(Z). The output Z=1 iff the
input is an invalid 6-3-1-1 code.
Procedure
1. Construct the truth table of the logic problem.
2. Plot the K-map from the truth table.
3. Simplify the function in a minimum SOP
4. Draw the minimum circuit that will implement the logic function.
5. Draw the PIN diagram of the circuit.
A B C D Z
0 0 0 0 1
0 0 0 1 0
0 0 1 0 0
0 0 1 1 1
0 1 0 0 0
0 1 0 1 1
0 1 1 0 0
0 1 1 1 0
1 0 0 0 0
1 0 0 1 1
1 0 1 0 0
1 0 1 1 1
1 1 0 0 0
1 1 0 1 0
1 1 1 0 0
1 1 1 1 1