Illustrate function of 4-input multiplexer using basic gates, Computer Engineering

Illustrate functional diagram of digital multiplexer. Write the scheme of a 4- input multiplexer using basic gates (AND/OR/NOT) and explain its operation.


Multiplexer: Data selector or MUX is a logic circuit selects binary information from one of several input and directs this to a single output line. Selection of the individual input line is controlled through a set of selection lines. Generally there are 2n input lines and respectively n selection lines.

Here 4 inputs that are I1 I0 I2 I3 and two selection line as S0 and S1. Depending on the bit combination of S0 and S1 one of the inputs is moved to the output. Fundamentally there is a decoder circuit along with one input for each bit of information and one OR gate linked to the output. If So, Si = 00, then first AND gate will contain the two inputs as one output will depend upon I0. At similar time outputs of all other AND gates are Zero.

The multiplexer is a combinational circuit that is individual most broadly utilized standard circuit in digital design. This has N select lines 2N inputs and a particular output.


Y = S‾1S‾0 I0 + S‾1S0 I1 + S1S‾0I2  + S1S0 I3

Truth table of 4x1 Mux

Select inputs

















1121_Circuit Diagram of 4 X 1 MUX using basic gate.png

Circuit Diagram of 4 X 1 MUX using basic gate

Posted Date: 5/4/2013 5:36:11 AM | Location : United States

Related Discussions:- Illustrate function of 4-input multiplexer using basic gates, Assignment Help, Ask Question on Illustrate function of 4-input multiplexer using basic gates, Get Answer, Expert's Help, Illustrate function of 4-input multiplexer using basic gates Discussions

Write discussion on Illustrate function of 4-input multiplexer using basic gates
Your posts are moderated
Related Questions
Arterial puncture - Specimen collection: Arterial puncture:    this requires special skill and usually performed only by physician. The preferred site is radial arter

Combinatorial and Scheduling Problems: One class of problems is concerned with specifying optimal scheduled. A classical example is the Travelling Salesperson Problem where

How a pointer variable declared in C ? Why is it sometimes desirable to pass a pointer to a function as an argument? A pointer is a variable which contains the address in memor

Q. Example on Cyclic Distribution of data? !HPF$ PROCESSORS P1(4) !HPF$ TEMPLATE T1(18) !HPF$ DISTRIBUTE T1(CYCLIC) ONTO P1 The result of these instructions is display

In this segment, we will give very brief details of registers of a RISC system known as MIPS. MIPS is a register-to-register or load/store architecture and employs three address

Q. Describe about Minicomputers? Minicomputers, developed in the early 1960s, are high-performance, general-purpose multi user computers. These are also designed for real-tim

If a programmer doesn't wish to make modifies to the document he can lock the document data and its code from more changes by changing the extension of the file system to .MDE. Cha

Sixth Generation (1990 - ) This  generation  begun  with  many  gains  in  parallel  computing,  both  in  hardware area and in improved understanding of how to build up algori

RDBMS relational database system - Relational databases are composed of relations and managed through relational operations, and governed through data integrity constraints.