# How many inputs and outputs does a demultiplexer have?

## How many inputs and outputs does a demultiplexer have?

De-Multiplexer is a combinational circuit that performs the reverse operation of Multiplexer. It has single input, ‘n’ selection lines and maximum of 2n outputs. The input will be connected to one of these outputs based on the values of selection lines.

What is the output of a multiplexer?

The MUX or multiplexor function outputs the same number as one of its inputs. The input that is chosen is dependent on the value of the K input. The MUX function has a K (integer) input and 2 or more other inputs.

What is analog demultiplexer?

This analog multiplexer/demultiplexer controls analog voltages that may vary across the voltage supply range (i.e., VCC to VEE). These bidirectional switches allow any analog input to be used as an output and vice versa. The switches have low ON resistance and low OFF leakages.

### How does a demultiplexer circuit work?

The demultiplexer takes one single input data line and then switches it to any one of a number of individual output lines one at a time. The demultiplexer converts a serial data signal at the input to a parallel data at its output lines as shown below.

What is mux and Demux and their use?

Multiplexer or Mux is an N-to-1 device whereas demultiplexer is a 1-to-N device. A multiplexer is used to convert several analog or digital signals into a single o/p signal through different control lines. But multiplexer is used at the transmitter end whereas the Demux is used at the receiver end.

What is mux and Demux in digital electronics?

A Multiplexer is a circuit that accept many inputs but gives only one output. A Demultiplexer functions exactly in the reverse way of a multiplexer i.e., a demultiplexer accepts only one input and gives many outputs.

#### What is demultiplexer in digital electronics?

A Demultiplexer or Demux in digital electronics is a circuit that takes a single input line and routes it to one of several digital output lines. A Demultiplexer of 2n outputs has n select lines, which are used to select which output line to send the input. A Demultiplexer is also called a data distributor.

What is the input for an 8 to 1 multiplexer circuit?

An 8-to-1 multiplexer consists of eight data inputs D0 through D7, three input select lines S0 through S2 and a single output line Y. Depending on the select lines combinations, multiplexer selects the inputs.

What is the difference between analog and digital multiplexer?

The difference between analog and digital muxes, seen from the outer world, is that the data inputs and the output are digital (two-level) for digital muxes, whereas in analog muxes the data signals can be analog.

## What is the purpose of multiplexer and demultiplexer?

The multiplexer is used to improve the efficiency of the communication system using transmission data like transmission of audio as well as video. Demultiplexer gets the o/p signals from the Mux & changed them to the unique form at the end of the receiver.

What are the advantages of demultiplexer?

• Transmission of Audio/Video signals requires combination of Multiplexers and Demultiplexers.
• They are also used as decoders in security systems like banking sectors.
• Combination of Demuxes with Muxes increases the efficiency of the communication system.

What are the applications of demultiplexer?

Applications of Demultiplexer

• Demultiplexer is used to connect a single source to multiple destinations.
• Communication System – Communication system use multiplexer to carry multiple data like audio, video and other form of data using a single line for transmission.

### What are the outputs of Upper 1×8 and lower 1×2 demultiplexer?

The outputs of upper 1×8 De-Multiplexer are Y 15 to Y 8 and the outputs of lower 1×8 DeMultiplexer are Y 7 to Y 0. The other selection line, s3 is applied to 1×2 De-Multiplexer. If s 3 is zero, then one of the eight outputs of lower 1×8 De-Multiplexer will be equal to input, I based on the values of selection lines s 2, s 1 & s 0.

What is a 16-channel analog multiplexer demultiplexer?

One example of this is the 74HC4067 16-channel analog multiplexer demultiplexer. That’s a mouthful – however in simple form it’s an IC that can direct a flow of current in either direction from one pin to any one of sixteen pins.

What is the difference between 1×8 and 1×16 de-multiplexer?

We know that 1×8 De-Multiplexer has single input, three selection lines and eight outputs. Whereas, 1×16 De-Multiplexer has single input, four selection lines and sixteen outputs. So, we require two 1×8 De-Multiplexers in second stage in order to get the final sixteen outputs.