Mux Circuit Diagram
A multiplexer can take any number of inputs line but then the selection line will be according to the number of inputs.
Mux circuit diagram. The circuit of the mux along with input and output terminals can be understood with the help of the below diagram. The mux select inputs correspond to the functions input variables and are used to select one row of the truth table. The multiplexer shortened to mux or mpx is a combinational logic circuit designed to switch one of several input lines through to a single common output line by the application of a control signal. Using a 1 to 2 decoder as part of the circuit we can express this circuit easily.
June 23 2003 basic circuit design and multiplexers 23. The logic circuit diagram for the same is shown below the logic diagram utilises only the nand gates and hence can be easily build on a perf board or even on a breadboard. The boolean expression for the logic diagram can be given by. The schematic symbol for multiplexers is.
It is abbreviated as mux or mpx. A multiplexer is a circuit that accept many input but give only one output. A multiplexer abbreviated mux is a device that has multiple inputs and one output. Chapter 9 combinational logic functions.
Digital circuits multiplexers. One of these data inputs will be connected to the output based on the values of selection lines. We could implement a function of n variables with an n to 1 multiplexer. A demultiplexer function exactly in the reverse of a multiplexer that is a demultiplexer accepts only one input and gives many outputs.
The truth table for a 2 to 1 multiplexer is. Generally multiplexer and demultiplexer are used together because of the communication systems are bi directional. The multiplexer or mux is a digital switch also called as data selector. In electronics a multiplexer or mux is a device that selects one of several analog or digital input signals and forwards the selected input into a single line.
Out s 0 d 0 d 1 s 0 d 0d 1 s 0d 0d 1 s 0d 0d 1. It allows the binary information from several input lines or sources and depending on the set of select lines particular input line. It is a combinational digital circuit and generally called a data selector as well. In simple words it is the reverse of demultiplexer demux.
It is a combinational circuit with more than one input line one output line and more than one select line. Since there are n selection lines there will be 2 n possible combinations of zeros and ones. Multiplexer is a combinational circuit that has maximum of 2 n data inputs n selection lines and single output line. Multiplexers operate like very fast acting multiple position rotary switches connecting or controlling multiple input lines called channels one at a time to the output.
Implementing functions with multiplexers.
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