3 Bit Comparator Logic Diagram. Figure 25 optimized logic diagram for a 4bit comparator seeing from the above diagram we can use 11 gates to implement the 4 bit comparator beside the inverters. Logic diagram of 2 bit magnitude comparator 3.
2 bit comparator circuit diagram. A 3 bit magnitude comparator using logic gates. The code was tested using a testbench code which tested the design for all the 81 combinations of inputs.
If input a0 logic low then both gates are at zero potential pmos is on provide low impedance path from v dd to output.
It consists of one nmos one pmos transistor. 4 gates of xor are the same. A comparator is shown. A 3 bit magnitude comparator using logic gates.