How do you create a 4-bit magnitude comparator?
A comparator used to compare two binary numbers each of four bits is called a 4-bit magnitude comparator….4-Bit Magnitude Comparator –
- If A3 = 1 and B3 = 0.
- If A3 = B3 and A2 = 1 and B2 = 0.
- If A3 = B3, A2 = B2 and A1 = 1 and B1 = 0.
- If A3 = B3, A2 = B2, A1 = B1 and A0 = 1 and B0 = 0.
Which 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 can we design a 8 bit magnitude comparator?
- Place the IC on IC Trainer Kit.
- Connect VCC and ground to respective pins of IC Trainer Kit.
- Implement the circuit as shown in the circuit diagram.
- Connect the inputs to the input switches provided in the IC Trainer Kit.
What is 3bit 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.
How many 4 input LUTs will a 4-bit comparator require?
But for 4-input comparator, the logic utilization is three 4-input LUTs and MUX.
How many OR gates are required for 4-bit magnitude comparator?
Optimized Logic diagram of 4-bit magnitude comparator: There are 5 gates of AND or NOR used with the different number of inputs but in both of them the principal of layout is same.
What is magnitude comparator explain?
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).
How does magnitude comparator work?
What is a 2 bit 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.
How many types of magnitude comparator are there?
Types of Magnitude Comparators: 1-bit magnitude comparator. 2-bit magnitude comparator. 3-bit magnitude comparator. 4-bit magnitude comparator.
How many possible functions can be implemented with a 4 LUT?
224 different functions
If there is a Look-Up Table (LUT) which has ‘a’ number of inputs, we can have 22a possible functions. For example, 4-LUT(4-input LUT) can represent 224 different functions.
What is the magnitude comparator for 7483?
You can think of a magnitude comparator being a device subtracting 2 numbers A-B. If the remainder is positive, then A is bigger than B. If the remainder is negative, then A is smaller than B. If the remainder is zero, then A=B. Since 7483 is a full adder, you just need to do a two’s complement add equivalent for the subtraction.
How does a 4-bit magnitude comparator work?
A comparator produces three outputs as L, E and G which corresponds to less than, equal and greater than results. There are also discrete ICs available for comparison of binary numbers. In this project SN7485 IC is used which is a 4-bit magnitude comparator. The two 4-bit numbers are input to the IC through a DC supply via 8 position DIP switch.
How to test the output of a 7485 IC?
The output of the circuit can be tested by passing different 4-bit binary numbers to the input pins of the 7485 IC. On comparison of the two binary numbers, either of three output pins will be HIGH and the respective LED will start glowing. The following observations were made on working with the 7485 IC
Which IC is used for comparison of 4-bit numbers?
For comparison of 4-bit numbers, SN7485 IC is used in this project. The IC is a 4-bit magnitude comparator which can be used for comparison of straight binary numbers and BCD coded numbers. The 16-pin IC has the following pin configuration –