# What is a decoder explain the working of 3 to 8 decoder?

## What is a decoder explain the working of 3 to 8 decoder?

This decoder circuit gives 8 logic outputs for 3 inputs and has a enable pin. The circuit is designed with AND and NAND logic gates. It takes 3 binary inputs and activates one of the eight outputs. 3 to 8 line decoder circuit is also called a binary to an octal decoder.

## How do you use a 3/8 decoder?

A 3 to 8 decoder has three inputs (A,B,C) and eight outputs (DO to D7). Based on the 3 inputs one of the eight outputs is selected. The truth table for 3 to 8 decoder is shown in table (1). From the truth table, it is seen that only one of eight outputs (DO to D7) is selected based on three select inputs.

Which is 3 line to 8 line decoder IC?

The 74HC238; 74HCT238 decodes three binary weighted address inputs (A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The device features three enable inputs (E1 and E2 and E3). Every output will be LOW unless E1 and E2 are LOW and E3 is HIGH.

### What is decoder explain with truth table?

A decoder is a circuit which has n inputs and 2n outputs, and outputs 1 on the wire corresponding to the binary number represented by the inputs. For example, a 2-4 decoder might be drawn like this: and its truth table (again, really four truth tables, one for each output) is: i1.

### Why is decoder used?

Introduction Of Decoder. The decoder is an electronic device that is used to convert digital signal to an analogue signal. It allows single input line and produces multiple output lines. The decoders are used in many communication projects that are used to communicate between two devices.

Which of the following best describes how do you construct a 1 line to 8 line demultiplexer from a 3 line to 8 line decoder?

Which of the following best describes how to construct a 1-line to 8-line demultiplexer from a 3-line to 8-line decoder:

• Connect the decoder input select lines CBA to D.
• Connect the decoder enable input to D.
• Connect the decoder input data lines to Di.
• Connect the ith decoder output to Di.
• Connect Y to D and W to D’.

#### What is a 2 to 4 line decoder?

2-to-4-Decoder Circuit. As a decoder, this circuit takes an n-bit binary number and generates an output on one of the 2n output lines . It is therefore usually described by the number of addressing i/p lines & the number of data o/p lines. Typical decoder ICs might include two 2-4 line circuits, a 3-8 line circuit, or a 4-16 line decoder circuit . One exclusion to the binary character of this circuit is the 4-10 line decoders, which is proposed to alter a Binary Coded Decimal (BCD) input to a

What is an example of a decoder?

The definition of a decoder is a person or tool that figures out a scrambled message. An example of a decoder is a machine that figures out the letter equivalent of a message written in all numbers.

## What is decoder logic?

A decoder is a multiple-input, multiple-output logic circuit that converts coded inputs into coded outputs, where the input and output codes are different; e.g. n-to-2n, BCD decoders.

Categories: Trending