Is a 4-bit magnitude comparator IC?

Is a 4-bit magnitude comparator IC?

The 4-bit comparator is mostly available in IC form and common type of this IC is 7485. This IC can be used to compare two 4-bit binary words by grounding I (A>B), I (A

How does magnitude comparator work?

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. Comparators are used in central processing units (CPUs) and microcontrollers (MCUs).

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 comparator circuit?

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 the comparison of bits takes place in IC 7485?

The circuit is based on the working of the SN7485 IC. When the two numbers are input through the DIP switch where switches are connected to regulated 5V DC supply, the IC performs comparison of the two 4-bit numbers and depending upon the result of the comparison, one of the three output pins is set to HIGH.

How many output terminals are there for a magnitude comparator?

Magnitude Comparator – a Magnitude Comparator is a digital comparator which has three output terminals, one each for equality, A = B greater than, A > B and less than A < B.

How many enable line are available in 4 1 mux?

A 4-to-1 multiplexer consists four data input lines as D0 to D3, two select lines as S0 and S1 and a single output line Y.

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

How many inputs 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. Thus, there are two inputs required for a digital comparator (i.e. A & B).

Which is a 4 bit magnitude comparator in logic?

By using these Boolean expressions, we can implement a logic circuit for this comparator as given below: A comparator used to compare two binary numbers each of four bits is called a 4-bit magnitude comparator.

What is the purpose of a 1 bit comparator?

Comparator – Designing 1-bit, 2-bit and 4-bit comparators using logic gates A Comparator is a combinational circuit that gives output in terms of A>B, A

What is the definition of magnitude digital comparator?

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.

What is the truth table for 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. We will compare each bit of the two 4-bit numbers, and based on that comparison and the weight of their positions, we will draft a truth table. Now let’s derive the equations for the three outputs.