What will the output of two 1 bit comparator having a and B as input?

For example, a magnitude comparator of two 1-bits, (A and B) inputs would produce the following three output conditions when compared to each other. This is useful if we want to compare two variables and want to produce an output when any of the above three conditions are achieved.

How many times a 4-bit magnitude comparator gives logic high for a B?

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 possible in the following four cases: If A3 = 1 and B3 = 0.

Which IC used in 2 bit comparator?

These comparators can compare 2-bit, 4-bit and 8-bit numbers depending on the application requirement. These are available in TTL as well as CMOS logic family ICs and some of these ICs include IC 7485 (4-bit comparator), IC 4585 (4-bit comparator in CMOS family) and IC 74AS885 (8-bit comparator).

What is magnitude comparator explain 1 bit magnitude comparator?

A digital comparator or magnitude comparator is a hardware electronic device that takes two numbers as input in binary form and determines whether one number is greater than, less than or equal to the other number. Note: An XNOR gate is a basic comparator, because its output is “1” only if its two input bits are equal.

How many inputs and outputs are there in comparator?

A comparator circuit compares two voltages and outputs either a 1 (the voltage at the plus side; VDD in the illustration) or a 0 (the voltage at the negative side) to indicate which is larger. Comparators are often used, for example, to check whether an input has reached some predetermined value.

How many inputs and outputs are required for a digital comparator?

Explanation: A comparator is a combinational circuit that takes two numbers as input in binary form and results whether one input is greater, lesser or equal to the other input. In a digital comparator, only 3 outputs are possible (i.e. A = B, A >B, A < B). Other than this, the output will be 0.

How many inputs are required for a 3-bit digital comparator?

Explanation: a comparator is a combinational circuit that takes two numbers as input in binary form and results whether one input is greater, lesser or equal to the other input. thus, there are two inputs required for a digital comparator (i.e. a & b).

How many entries does the truth table for the circuit comparing two n bit numbers have?

22n entries
The circuit, for comparing two n-Bit numbers, has 2n inputs & 22n entries in the truth table, for 2-Bit numbers, 4-inputs & 16-rows in the truth table, similarly, for 3-Bit numbers 6-inputs & 64-rows in the truth table [2].

How many types of digital comparators are?

two
There are two main types of digital comparators available: Identity comparator and Magnitude comparator.

What is a 8 bit comparator?

An 8-bit comparator compares the two 8-bit numbers by cascading of two 4-bit comparators. The circuit connection of this comparator is shown below in which the lower order comparator AB outputs are connected to the respective cascade inputs of the higher-order comparator.

What is a 3-bit comparator?

A comparator that compares two binary numbers (each number having 3 bits) and produces three outputs based on the relative magnitudes of given binary bits is called a 3-bit magnitude comparator. 3-bit magnitude. The equal functions are A0 = B0, A1= B1, A2 = B2.

What is an n-bit comparator?

According to one feature of the present invention, the N-bit comparator for comparing two numbers A and B, each consisting of N bits, includes: N one-bit comparing circuits connected to a final comparing circuit. Each one-bit comparing circuit generates a first output signal and a second output signal.

What is a 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 possible in the following four cases:

How many inputs and outputs does a 4-bit comparator have?

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 possible in the following four cases: Similarly the condition for A

Which comparator is used to compare two bits?

A comparator used to compare two bits is called a single bit comparator. It consists of two inputs each for two single bit numbers and three outputs to generate less than, equal to and greater than between two binary numbers. The truth table for a 1-bit comparator is given below: