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One-to-many circuit
- Demux is a one-to-many circuit, which is exactly the opposite to the Multiplexer. With the use of a Demultiplexer, data from one input can be passed to one of the many output data lines. Demultiplexers are mainly used in Boolean function generators and decoder circuits.
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What is a demultiplexer & a data distributor?
Jul 29, 2024 · DEMUX or De-Multiplexer is a data distributor combinational circuit. It works in a reverse way of the Multiplexer. The DEMUX has 1 input port and 2^n output lines.
- What Is A Demultiplexer?
- 1-to-2 Demultiplexer
- 1-to-4 Demultiplexer
- 1-to-8 Demultiplexer
- Applications of Demultiplexer
- Conclusion
Demultiplexing is the process of getting information from one input and transmitting the same over one of many outputs. If you recall the Multiplexer tutorial, there we discussed the concept of Multiplexing. Demultiplexing is just the opposite of that. A Demultiplexer is a combinational logic circuit that receives the information on a single input ...
A 1-to-2 demultiplexer consists of one input line, two output lines and one select line. The signal on the select line helps to switch the input to one of the two outputs. The figure below shows the block diagram of a 1-to-2 demultiplexer with additional enable input. In the figure, there are only two possible ways to connect the input to output li...
A 1-to-4 demultiplexer has a single input (D), two selection lines (S1 and S0) and four outputs (Y0 to Y3). The input data goes to any one of the four outputs at a given time for a particular combination of select lines. This demultiplexer is also called as a 2-to-4 Demultiplexer, which means that it has two select lines and 4 output lines. The blo...
The below figure shows the block diagram of a 1-to-8 demultiplexer that consists of single input D, three select inputs S2, S1 and S0 and eight outputs from Y0 to Y7. It is also called as 3-to-8 demultiplexer due to its three select input lines and 8 output lines. It distributes one input line to one of 8 output lines depending on the combination o...
Since the demultiplexers are used to select or enable the one signal out of many, these are extensively used in microprocessor or computer control systems such as: 1. Selecting different IO devices for data transfer (Data Routing) 2. Choosing different banks of memory (Memory Decoding) 3. Depends on the address, enabling different rows of memory ch...
A complete beginner’s guide on Demultiplexers or DEMUX. You learned what is a Demultiplexer, different types of Demux like 1-to-2, 1-to-4, 1-to-8, 1-to-16, their logic circuits and some important applications of Demultiplexers.
Oct 12, 2022 · Demultiplexer or Demux is a combinational circuit that distributes the single input data to a specific output line. The control inputs or selection lines are used to select a specific output line from the possible output lines. Demultiplexer works opposite to that of the multiplexer.
Feb 24, 2012 · Demultiplexer Definition: A demultiplexer (demux or data distributor) is defined as a circuit that distributes multiple outputs from a single input. Working Principle: It operates by using a control signal to select which output line will receive the input data.
- 1-to-4 Channel De-multiplexer. Output Select. Data Output. Selected b a 0 A 1 B C D. The Boolean expression for this 1-to-4 Demultiplexer above with outputs A to D and data select lines a, b is given as
- Demultiplexer Output Line Selection. As with the previous multiplexer circuit, adding more address line inputs it is possible to switch more outputs giving a 1-to-2 data line outputs.
- 4 Channel Demultiplexer using Logic Gates. The symbol used in logic diagrams to identify a demultiplexer is as follows.
- The Demultiplexer Symbol. Again, as with the previous multiplexer example, we can also use it to digitally control the gain of an operational amplifier as shown.
A digital device capable of forwarding its single input onto any one of the output lines is called Demultiplexer abbreviated for DEMUX. It is the reverse of Multiplexer. A Demultiplexer has a single input and multiple outputs. It has 2n output lines where “n” is the number of control signals.
A Demultiplexer is a combinational logic circuit that accepts a single input and distributes it over several output lines. Demultiplexer is also termed as DEMUX in short. As Demultiplexer is used to transmit the same data to different destinations, hence it is also known as data distributor.
