What is 2-bit digital comparator?
2-Bit Magnitude Comparator – A comparator used to compare two binary numbers each of two bits is called a 2-bit Magnitude comparator. It consists of four inputs and three outputs to generate less than, equal to and greater than between two binary numbers.
Which gate is two bit comparator?
Comparators are used in central processing units (CPUs) and microcontrollers (MCUs). Examples of digital comparator include the CMOS 4063 and 4585 and the TTL 7485 and 74682. Note: An XNOR gate is a basic comparator, because its output is “1” only if its two input bits are equal.
What is a digital comparator circuit?
Definition: A Digital Comparator is a combinational logic circuit that is used for comparison of two binary values. Basically it generates the desired signal (either low or high) at the output when compares two digital values provided at its input. Identity Comparator.
How does a 2-bit comparator work?
A 2-bit comparator compares two binary numbers, each of two bits and produces their relation such as one number is equal or greater than or less than the other. The figure below shows the block diagram of a two-bit comparator which has four inputs and three outputs.
What are the applications of 1 bit & 2-bit comparator?
These are used in control applications in which the binary numbers representing physical variables such as temperature, position, etc. are compared with a reference value. Comparators are also used as process controllers and for Servo motor control. Used in password verification and biometric applications.
How does a 2 bit comparator work?
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).
What are the applications of 1 bit and 2-bit comparator?
What do you call a single bit digital comparator?
Let us name the output terminals G, E and L respectively. As the above can only compare two single bit binary numbers, it is called single bit digital comparator. The binary number system normally does not use single binary numbers instead it uses multi bit binary numbers which are normally 4 bits and above.
What is the purpose of a 2 bit magnitude comparator?
ABSTRACT: 2-bit magnitude comparator design using different logic styles is proposed in this brief. Comparison is most basic arithmetic operation that determines if one number is greater than, equal to, or less than the other number. Comparator is most fundamental component that performs comparison operation.
When do you use a digital comparator in arithmetic?
Data comparison is needed in digital systems while performing arithmetic or logical operations. This comparison determines whether one number is greater than, equal, or less than the other number. A digital comparator is widely used in combinational system and is specially designed to compare the relative magnitudes of binary numbers.
What is the IC of a digital comparator?
IC of Digital Comparator. The Integrated Circuit (IC) available for 4 bit digital comparator is IC 7485. For more bit comparison, more than one such ICs can be cascaded. This IC has three terminals, labeled as (A in, (A = B) in and (A > B) in and other three terminals labeled as, as (A out, (A = B) out and (A > B) out.