CS302P Practical Quiz Set 2

Digital Logic Design Practical (CS302P) · Assignment # 02 · Spring 2023 · Question Statement

You are provided with a 4-Bit Magnitude Comparator through a truth table:

1. Generate the Boolean Expression for the OUTPUTS of a Comparator (A = B, A < B & A > B).
2. Draw the AND-OR Based 4-Bit Magnitude Comparator Circuit for all three (3) Outputs on a Workbench.

Solution:

Task 1: Boolean Expression

A = B: (A3  B3) (A2  B2) (A1  B1) (A0  B0)

A > B: (A3B3' + A3'A2B2' + A3'A2'A1B1' + A3'A2'A1'A0B0')'

A < B: (A3B3' + A3A2B2' + A3A2A1B1' + A3A2A1A0B0')'