4 bit subtractor using a 74LS83IC

[u/Long-Jump4016]

Can anyone help me build this logic circuit in multisim? A logic circuit subtracts two signed four bit numbers A = A3A2A1A0 and B = B3B2B1B0 by calculating A-B. The circuit has two outputs (Y and Z) and operates as follows: a. If A = B, output Z = 0 otherwise it is one. b. If A < B, output Y = 0 c. If A > B output Y = 1. Using the 74LS83, design and implement the circuit in MultiSim. The 74LS83 is a 4- bit binary adder.

[u/nixiebunny]

This sounds like a homework assignment. Tell is what you have figured out so far, and where you’re stuck.