Feb 4, 2025 · In this guide, we’ll walk through the design of 1-bit, 2-bit, and 4-bit comparators using digital logic gates. By the end, you’ll understand how to construct efficient comparator circuits and simplify their logic equations.

Dec 27, 2024 · 4-Bit Magnitude Comparator. A comparator used to compare two binary numbers each of four bits is called a 4-bit magnitude comparator. It consists of eight inputs each for two four-bit numbers and three outputs to generate less than, equal to, and greater than between two binary numbers. In a 4-bit comparator, the condition of A>B can be ...

The document describes the design and implementation of 1-bit, 2-bit, and 4-bit magnitude comparators using logic gates. It includes the block diagram of a comparator, truth tables for each design, and logic expressions to generate the output …

May 17, 2023 · 4 Bit Comparators. A comparator applied to compare two binary numbers with each of four bits is termed a 4-bit magnitude comparator. It consists of 8 inputs each for two four-bit numbers and three outputs to generate less than(<), equal to(=) and greater than(>) between two binary numbers.

This article presents Verilog HDL code for designing 1-bit and 4-bit comparators, including truth tables and simulation results.

A comparator has two inputs and three output bits that say whether the first input is greater, less, or equal to the second input. A_grt_B = 0; A_less_B = 0; A_eq_B = 0; if(A> B) A_grt_B = 1'b1; else if(A <B) A_less_B = 1'b1; else A_eq_B = 1'b1; end endmodule.

Figure 2.3 shows the 4-bit magnitude comparator. Seeing from the above diagram, we can use 11 gates to implement the 4-Bit comparator beside the inverters. The kind of gates includes XOR, AND, NOR. 4 gates of XOR are the same. 5 gates of AND have different number of inputs, but the principle of layout is the same. So does the NOR gate.

Oct 21, 2017 · In this article, we will discuss the 4-bit comparator circuit diagram, truth table, and its various applications. A 4-bit comparator circuit consists of four data inputs A0, A1, A2, and A3 and two outputs Q and Q’. These two outputs indicate whether the two inputs are equal or not.

Can we chain cascade (chain) together 4-bit magnitude comparators? EQ. Notice that all 3 of the cascaded inputs are qualified with A=B from the MSB’s. When A=B = 0, the cascaded inputs are forced to 0. If the MSB’s of A are > or < the MSB’s of B then the overall outputs are fully determined. Thus those outputs go into the final OR gate.

Abstract- In this paper an area and power efficient 56T 4-bit comparator design has been presented by using GDI technique. The proposed 4-bit comparator design consist of 28 NMOS and 28...