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2.  Introduction to MUX and DEMUX Introduction to MUX and DEMUX  Multiplexer Multiplexer  4-to-1 Multiplexer (MUX) 4-to-1 Multiplexer (MUX)  Typical Application of a MUX Typical Application of a MUX  Demutliplexer Demutliplexer  1:4 DEMUX 1:4 DEMUX  Typical Application of a DEMUX Typical Application of a DEMUX

3.  This presentation will demonstrate  The basic function of the Multiplexer (MUX).  The typical application of a MUX.  A 4-to-1 MUX designed with Small Scale Integration (SSI).  A 4-to-1, 8-to-1, & 16-to-1 Medium Scale Integration (MSI) MUX.  The basic function of the Demultiplexer (DEMUX).  The typical application of a DEMUX.  A 1-to-4 DEMUX design with Small Scale Integration (SSI).  A 1-to-4, 1-to-8, & 1-to-16 Medium Scale Integration (MSI) DEMUX.  A 7-segment message display using MUX/DEMUX back

4.  A multiplexer is a combinational circuit that accept input from 2 n lines and give the output on a single output line.  A MUX is a digital switch that has multiple inputs (sources) and a single output (destination).  The select lines determine which input is connected to the output.  MUX Types  2-to-1 (1 select line)  4-to-1 (2 select lines)  8-to-1 (3 select lines)  16-to-1 (4 select lines) back

5.  I0, I1, I2, I3 are four inputs  Y is the output  Sel_0 and Sel_1 are the two select lines.

6.  Expression :I0.sel_1’.sel_0’+I2. sel_1’.sel_0+ I2.sel_1.sel_0’+ I3.sel_1.sel_0 Data Select inputsOutput y Sel_1sel_0Input Selected 00I0 01I1 10I2 11I3

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8. 8 MP3 Player Docking Station Laptop Sound Card Digital Satellite Digital Cable TV Surround Sound System MU X D0 D1 D2 D3 Y BASelected Source 00MP3 01Laptop 10Satellite 11Cable TV Multiple Sources Single Destination Selector back

9.  A DEMUX is a digital switch with a single input (source) and a multiple outputs (destinations).  The select lines determine which output the input is connected to.  DEMUX Types  1-to-2 (1 select line)  1-to-4 (2 select lines)  1-to-8 (3 select lines)  1-to-16 (4 select lines) back

10.  D0, D1, D2, D3 are four outputs.  Data i\p is the input line.  Sel_0 and Sel_1 are the two select lines.

11. Select LinesOutput Lines S1S0D0D1D2D3 001000 010100 100010 110001

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13. 13 Single SourceMultiple Destinations Selector D0 D1 D2 D3 X DEMUX BA Selected Destination 00B/W Laser Printer 01Fax Machine 10Color Inkjet Printer 11Pen Plotter B/W Laser Printer Color Inkjet Printer Pen Plotter Fax Machine back