3 Bit Magnitude Comparator Truth Table And Logic Diagram. Magnitude comparator for 1 bit 2 bit 3 bit 4 bit are discussed in this lecture the expressions for outputs of 1 bit 2 bit 3 bit and 4 bit magnitude comp. A magnitude digital comparator is a combinational circuit that compares two digital or binary numbers in order to find out whether one binary number is equal less than or greater than the other binary number.
A comparator that compares two binary numbers each number having 4 bits and produces three outputs based on the relative magnitudes of given binary bits is called a 4 bit magnitude comparator. The logic circuit of a 2 bit comparator how to design a 4 bit comparator. The truth table for a 4 bit comparator would have 4 4 256 rows.
So we will do things a bit differently here.
Magnitude comparator for 1 bit 2 bit 3 bit 4 bit are discussed in this lecture the expressions for outputs of 1 bit 2 bit 3 bit and 4 bit magnitude comp. The figure below shows the block diagram of a single bit magnitude comparator. The truth table for the single bit comparator is given below. The input bits can be termed as a a3 a2 a1 a0 and b b3 b2 b1 b0.
