7483 IC 4-Bit Binary FULL ADDER With Fast Carry DIP-16

Description

7483 IC 4-Bit Binary FULL ADDER With Fast Carry

The
74LS83
is a high-speed
4-bit fuller Adder IC
with the carry-out feature. The IC has four independent stages of full adder circuits in a single package. It is commonly used in applications where arithmetic operations are involved.

Pin Layout

74LS83
Pin Configuration

Pin Number

Pin Name

Description

10,8,3,1

A1, A2, A3, A4

First Input for the adder circuit (Four pins for four stages)

11,7,4,16

B1, B2, B3, B4

Second Input for the adder circuit (Four pins for four stages)

13

C0

Carry Input – from the previous stage if present.

9,6,2,15

S1, S2, S3, S4

Output pin for the Adder circuit (Four pins for four stages)

14

C4

Carry Out the pin to cascade with other ICs.

Specifications – 74LS83

4-bit Full Adder with Carry Out

Nominal Operating Voltage: 5V

Maximum Operating Voltage: 5.5V

Output Propagation delay: 16nS

Maximum Input Low Voltage: 0.8V

Minimum Input High Voltage: 2V

Available in a 16-pin PDIP package

Note:
The Specifications are applicable when the IC is operating at 5V.
Complete Technical Details can be found on the
74LS83
datasheet
given at the end of this page.

Where to use 74LS83 IC

Although today we have cheap microcontrollers that can perform all arithmetic operations required for our application, in the early days ICs like Adder, Counter, flip-flops, etc were used for the same. This way the complexity and the BOM cost of the circuit design will greatly go low.

The
74LS83
is a Full Adder with Carry and Carry out features. It is a four-stage 4-bit counter, meaning it has four individual Full adder circuits each of 4-bit inside a single package. It can also be easily cascaded if more than four stages are required.

How to use a 74LS83 Full Adder IC

Using the Full Adder IC is pretty much straightforward. The IC has four different stages and each stage has two normal inputs Ax and Bx with an additional carry input called C1. Based on the values provided to these pins the output Sx will either be high (logic 1) or low (logic 0). The IC also has a Carry Out (CO) pin which will go high if the result has a carry. The block diagram below represents the same.

Each Full adder stage will obey the truth table below. Where Ai, Bi, and Ci are the input and SUM, and Co are the outputs.

The complete working will full simulation video can be found in the video linked below.

Applications

High-Speed Arithmetic operations

Miniature calculators

Counters

Simple logic control designs

Component Datasheet

7483 Datasheet