Design a threshold detector.

Your circuit will have four inputs a3,a2,a1,a0 and a single output x. Output x should be high if the binary number represented by the inputs is greater than 4. Write a logic equation for the output and use it to design a circuit using as few gates as you can (use only inverters plus 2 input AND gates and OR gates). Also, show how the function can be implemented using an 8:1 MUX and a single inverter.  Use unsigned arithmetic.

Turn in a copy of your design notes and solutions.

 

Due Wednesday, Jan. 13 in class