# How do you make a 4-bit magnitude comparator?

## How do you make 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.

## Is a 4-bit magnitude comparator IC?

The other two outputs are also use Ex-NOR outputs to generate the Boolean functions as shown figure. 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

**What are the outputs of a 7485 four bit magnitude comparator?**

Like two 4-bit comparators can be cascaded for comparison of 8-bit numbers. 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.

### How many 4 input LUTs will a 4-bit comparator require?

For case A>B, if the input is 2bit, the logic utilization is one 4-input LUT. Pretty obvious. A0,A1,B0,B1 inputs and one Y output. But for 4-input comparator, the logic utilization is three 4-input LUTs and MUX.

### What is 4-bit number?

A 4-bit unsigned binary number system. A 4-bit unsigned binary number has values ranging from 00002 (010) to 11112 (1510). Hence, it is a modulo-100002, or modulo-1610. Modern computers typically support binary integers of 8, 16, 32, or 64 bits.

**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. The analog equivalent of digital comparator is the voltage comparator.

#### What is the working principle of 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. Comparators are used in central processing units (CPUs) and microcontrollers (MCUs).

#### What is a 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. The select lines S0 and S1 select one of the four input lines to connect the output line.

**What is a 4-input LUT?**

An n-bit LUT can encode any n-bit Boolean function by modeling such functions as truth tables. This is an efficient way of encoding Boolean logic functions, and LUTs with 4-6 bits of input are in fact the key component of modern FPGAs. Virtex-4 function generators are implemented as 4-input look-up tables (LUTs).

## What are the 16 4 bit numbers?

Being a Base-16 system, the hexadecimal numbering system therefore uses 16 (sixteen) different digits with a combination of numbers from 0 through to 15. In other words, there are 16 possible digit symbols….Hexadecimal Numbers.

Decimal Number | 4-bit Binary Number | Hexadecimal Number |
---|---|---|

13 | 1101 | D |

14 | 1110 | E |

15 | 1111 | F |

16 | 0001 0000 | 10 (1+0) |

## How many numbers can 4 bits represent?

16

The most common is hexadecimal. In hexadecimal notation, 4 bits (a nibble) are represented by a single digit. There is obviously a problem with this since 4 bits gives 16 possible combinations, and there are only 10 unique decimal digits, 0 to 9.

**How to implement a 4 bit magnitude comparator?**

To study and Implement 4-Bit Magnitude Comparator using IC-74LS85. To understand the behavior and demonstrate the Implementation of 4-Bit Magnitude Comparator using IC 74LS85. To apply knowledge of the fundamental gates to create truth tables. To develop digital circuit building and troubleshooting skills.

### What is the dm74ls85 4-bit magnitude comparator?

DM74LS85 4-Bit Magnitude Comparator General Description These 4-bit magnitude comparators perform comparison of straight binary or BCD codes. Three fully-decoded deci- sions about two, 4-bit words (A, B) are made and are exter- nally available at three outputs. These devices are fully expandable to any number of bits without external gates.

### How is magnitude comparator used in IC 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 is a 4 bit comparator used in VCC?**

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