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Last Updated: Mar 27, 2024

Application of Decoder

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Prerita Agarwal
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23 Jul, 2024 @ 01:30 PM

Introduction

In this article, we will look at a decoder, which is a combinational circuit that converts binary data from N coded inputs to a maximum of 2N different outputs.

intro image

There are many applications of decoders. Let’s find out.

What is Decoder?

A decoder is an electronic device that receives an encoded signal and transforms it into the desired output signal. It is frequently used in digital systems to convert binary data into a format that can be easily understood by other components. 

A decoder typically has a fixed number of input lines and produces a unique output code for each input code. The number of output lines on a decoder depends on the number of input lines and the type of decoding used.

Also see,  what is middleware

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Applications of Decoder 

Decoders are used in various functions in computer systems including code conversions, memory operations, de-multiplexing, and data distribution. Let's discuss some of them::-

  1. Memory Address Decoding
  2. Seven-Segment Display Decoder
  3. Television Remote Control
  4. Barcode Scanner
  5. Traffic Light Control
  6. Security Systems
  7. Motor Control
  8. Keyboard encoder
  9. Sound Synthesis

1. Memory Address Decoding

application 1

A memory address decoder is used in computer architecture to select a specific memory location from a large memory space. It accepts a binary address as input and then outputs a signal to choose the relevant memory location.

2. Seven-Segment Display Decoder

application 2

Seven-segment displays are commonly used to display numeric digits and some alphabetic characters. A seven-segment display decoder is used to convert a binary input into the appropriate output to display a specific character on the display.

3. Television Remote Control

application 3

A television remote control sends a coded signal to the TV when you press a button. The TV has a built-in decoder that interprets the code and takes the appropriate action.

4. Barcode Scanner

application 4

A barcode scanner uses a decoder to interpret the lines of a barcode and convert them into a product code that can be used to look up information about the item. Barcode scanners are generally used in supermarkets.

5. Traffic Light Control

application 5

A decoder can be used to control the sequencing of traffic lights at an intersection.

6. Security Systems

application 6

A decoder can be used in a security system to decode signals from sensors and trigger an alarm if necessary.

7. Motor Control

application 7

A decoder can be used to control the speed and direction of the motor by decoding signals from a microcontroller.

You can also read 8051 Microcontroller Pin Diagram here.

8. Keyboard Encoder

application 8

A decoder can be used to encode signals from a keyboard and send them to a computer or other digital device.

9. Sound Synthesis

application 9

A decoder can be used in a sound synthesizer to generate different types of sounds based on input signals.

There are many other advantages of decoders. Let us move forward to the FAQs section.

Must Read Shift Registers in Digital Electronics and Difference Between Jfet and Mosfet

Frequently Asked Questions 

What is the purpose of a decoder?

The purpose of a decoder is to decode binary information and convert it into a format that can be easily used by other circuits or devices.

What is a binary decoder?

A decoder that converts a binary code into an output signal on one of its output lines.

What is a BCD decoder?

A decoder that converts a binary-coded decimal (BCD) signal into a decimal output signal.

What is the difference between decoder and an encoder?

An encoder converts an input into a coded output, while a decoder converts a coded input into an output.

What is a 2-to-4 decoder?

A decoder that has two input lines and four output lines.

Conclusion

In this article, we discussed various application of decoders. You can also read the article Introduction to Decoders to improve your knowledge about decoders.

To learn more, check out our articles:

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Happy Coding!

Topics covered
1.
Introduction
2.
What is Decoder?
3.
Applications of Decoder 
3.1.
1. Memory Address Decoding
3.2.
2. Seven-Segment Display Decoder
3.3.
3. Television Remote Control
3.4.
4. Barcode Scanner
3.5.
5. Traffic Light Control
3.6.
6. Security Systems
3.7.
7. Motor Control
3.8.
8. Keyboard Encoder
3.9.
9. Sound Synthesis
4.
Frequently Asked Questions 
4.1.
What is the purpose of a decoder?
4.2.
What is a binary decoder?
4.3.
What is a BCD decoder?
4.4.
What is the difference between decoder and an encoder?
4.5.
What is a 2-to-4 decoder?
5.
Conclusion