# 8 Bit Comparator Circuit Diagram

By | May 13, 2023

## 8 Bit Comparator Circuit Diagram

An 8-bit comparator circuit is a type of electronic circuit that compares two binary numbers of 8 bits each. The output of the comparator circuit is either 0 or 1, depending on whether the two input numbers are equal or not. Comparator circuits are used in a variety of applications, such as digital logic, arithmetic circuits, and data converters. They can also be used to detect the sign of a number or to check for overflow in arithmetic operations. ## 8-Bit Comparator Circuit Diagram The following diagram shows a simple 8-bit comparator circuit: The circuit consists of eight XOR gates, eight AND gates, and one OR gate. The XOR gates are used to compare the individual bits of the two input numbers. The AND gates are used to check if any of the bits are different. The OR gate is used to output a 1 if any of the bits are different. ## How Does an 8-Bit Comparator Circuit Work? The 8-bit comparator circuit works by comparing the individual bits of the two input numbers. The XOR gates are used to compare the bits and the AND gates are used to check if any of the bits are different. The OR gate is used to output a 1 if any of the bits are different. The following table shows how the 8-bit comparator circuit works: | Input A | Input B | Output | |---|---|---| | 00000000 | 00000000 | 0 | | 00000000 | 00000001 | 1 | | 00000000 | 00000010 | 1 | | 00000000 | 00000011 | 1 | | 00000000 | 00000100 | 1 | | 00000000 | 00000101 | 1 | | 00000000 | 00000110 | 1 | | 00000000 | 00000111 | 1 | | 00000001 | 00000000 | 1 | | 00000001 | 00000001 | 0 | | 00000001 | 00000010 | 1 | | 00000001 | 00000011 | 1 | | 00000001 | 00000100 | 1 | | 00000001 | 00000101 | 1 | | 00000001 | 00000110 | 1 | | 00000001 | 00000111 | 1 | | 00000010 | 00000000 | 1 | | 00000010 | 00000001 | 1 | | 00000010 | 00000010 | 0 | | 00000010 | 00000011 | 1 | | 00000010 | 00000100 | 1 | | 00000010 | 00000101 | 1 | | 00000010 | 00000110 | 1 | | 00000010 | 00000111 | 1 | | 00000011 | 00000000 | 1 | | 00000011 | 00000001 | 1 | | 000

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