What is multiplexer in combinational circuit?
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.
What is the formula for multiplexer?
2n : 1 MUX requires (2^n – 1) 2 : 1 MUX. In general, to implement B : 1 MUX using A : 1 MUX , one formula is used to implement the same. KN-1 / A = KN = 1 (till we obtain 1 count of MUX). And then add all the numbers of MUXes = K1 + K2 + K3 + ….
How would you express on working of a multiplexer?
There are many types of multiplexers – like 2-to-1, 4-to-1, and 8-to-1 multiplexers. Each one has a different circuit, truth table, boolean expression, and working principle. Let’s discuss each type of multiplexer one by one….4 to 1 Multiplexer Truth Table.
| S0 | S1 | Y |
|---|---|---|
| 1 | 0 | D2 |
| 1 | 1 | D3 |
What does MUX mean?
Multiplexer
What Does Multiplexer (MUX) Mean? A multiplexer (MUX) is a device allowing one or more low-speed analog or digital input signals to be selected, combined and transmitted at a higher speed on a single shared medium or within a single shared device. A MUX functions as a multiple-input, single-output switch.
What is combinational logic gates?
Combinational Logic Circuits are made up from basic logic NAND, NOR or NOT gates that are “combined” or connected together to produce more complicated switching circuits. These logic gates are the building blocks of combinational logic circuits.
What is 8×1 multiplexer?
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.
Which IC is used for the implementation of 1 to 16 demux?
IC 74154
Explanation: IC 74154 is used for the implementation of 1-to-16 DEMUX, whose output is inverted input.
What is a multiplexer in combinational logic?
Chapter 9 – Combinational Logic Functions. A multiplexer, abbreviated mux, is a device that has multiple inputs and one output. The schematic symbol for multiplexers is. The truth table for a 2-to-1 multiplexer is. Using a 1-to-2 decoder as part of the circuit, we can express this circuit easily.
What is a multiplexer circuit?
Multiplexer A multiplexer or data selector, is a combinational circuit having multiple input line, select lines and one output line. Further, multiplexers integrated circuits are having ENABLE input, which has to to be activated to perform the multiplexer operation.
What are the characteristics of a combinational logic circuit?
There are the following characteristics of the combinational logic circuit: At any instant of time, the output of the combinational circuits depends only on the present input terminals. The combinational circuit doesn’t have any backup or previous memory. The present state of the circuit is not affected by the previous state of the input.
How much memory does a combinational circuit use?
The combinational circuit do not use any memory. The previous state of input does not have any effect on the present state of the circuit. A combinational circuit can have an n number of inputs and m number of outputs. We’re going to elaborate few important combinational circuits as follows.