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Sep 19, 2024 · It consists of 1 input line, ‘n’ output lines and ‘m’ select lines. In this, m select lines are required to produce 2 m possible output lines (consider 2 m = n). For example, a 1-to-4 demultiplexer requires 2 (2 2 = 4) select lines to control the 4 output lines.
Feb 24, 2012 · A demultiplexer can perform as a single input with many output switches. The demultiplexer’s output lines are ‘n’ in number, the select line number is ‘m’ and n = 2 m. The control signal or select input code decides the output line to which the input has to be transmitted.
Jul 29, 2024 · The demultiplexer has several control lines (also known as select lines). These lines determine to which output the input data should be sent. The number of control lines determines the number of output lines.
- 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.
The 1×4 Demultiplexer has 1 input line (I), 2 select line (S 0 and S 1), and 4 output lines (Y 0, Y 1, Y 2, and Y 3). The logic level applied to the select lines determines the output line to which the input data (I) will be transmitted.
Nov 19, 2021 · A 1-to-2 demultiplexer (Demux) includes single input & two output lines with 1 select line. The select line signal assists to control the input to one of the 2 outputs. The block diagram of a 1-to-2 demultiplexer including an enable input is shown below.
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.
