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.

Ans:

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.

Multiplexer:-

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

Truth table of 4x1 Mux

Select inputs

Output

S1

S0

Y

0

0

I0

0

1

I1

1

0

I2

1

1

I3

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
What are links and associations? Link is a physical or conceptual connection between objects. A link is an instance of an association.  Association is a explanation of group

Syntax and Semanticsx and Semantics for First-order logic - artificial intelligence: Propositional logic is limited  in its expressiveness: it may just represent true and false

Explain the method to identify the Object Classes You would always be careful while identifying relevant object classes from application domain. Objects may include physical e

Q What do you mean by Directives? Assembly languages support numerous statements. This allows you to control the way in which a source program assembles and list. These stateme

Q. Explain about Synchronous DRAM? One of the most broadly used forms of DRAM is synchronous DRAM (SDRAM). Unlike the conventional DRAM that is asynchronous SDRAM exchanges dat

What is Anonymous File Transfer Protocol? Anonymous FTP: While a FTP client contacts a server, in that case, the daemon will ask for an account number or username and it

Describe the customer service and support in post purchase Interaction. Post purchase Interaction: The considerations at this step can be explained by the given example:

What is the difference among "using System.Data;" and directly adding the reference from "Add References Dialog Box"?  When you compile a program using command line, you add th

The session support can be turned on automatically at the site level, or manually in every PHP page script: * Turning on session support automatically at the site level: Set s

What are the limitations of traditional payment instruments? The limitations of traditional payment system are that they take a lot of time.  These systems needs manual work to