Combinational Logic Design problems

Thread Starter


Joined Jul 16, 2005
Hi.. can anyone teach me how i can tackle combination circuit design problems.
i am learning logic design now and i am have problem understanding especially when i am ask to draw the circuit with gates or..?

For example these 2 problem. For 21, i know what a comparator does and i understand its truth table but i dont know how to add gates or to draw the required circuit.
Similarly for 22, i can derive the truthtable and but from the truthtable i dont know what gate to use to add to the MUX to implement Z.

Maybe you can list down the steps to you would do to tackle these 2 problem and hopefully i can understand better. NOTE: i dont need the solution to the problem as i have it, i just need explanation and steps to do to tackle such problem.