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Demultiplexer

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A demux is a digital switch that takes a single input signal and distributes it to multiple outputs based on select lines. It has one input and multiple outputs, with the select lines determining which output the input is routed to. Common demux configurations include 1-to-2, 1-to-4, 1-to-8, and 1-to-16 depending on the number of select lines. A typical application is routing a single data source like a laser printer to multiple destinations like a fax machine, inkjet printer, or plotter.

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DEMULTIPLEXER

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WHAT IS DEMULTIPLEXER? 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.

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DEMULTIPLEXER BLOCK DIAGRAM 1 2N DEMUX Input Outputs (source) (destinations) N Select Lines

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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)

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1-to-2 DEMULTIPLEXER

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TYPICAL APPLICATION OF A DEMUX Multiple Destinations Single Source Selector B/W Laser Printer Fax Machine D0 DEMUX X D1 D2 Color Inkjet Printer D3 B A Selected Destination 0 0 B/W Laser Printer Pen Plotter 0 1 Fax Machine 1 0 Color Inkjet Printer 1 1 Pen Plotter 6

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Demultiplexer

  • 2. WHAT IS DEMULTIPLEXER? 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.
  • 3. DEMULTIPLEXER BLOCK DIAGRAM 1 2N DEMUX Input Outputs (source) (destinations) N Select Lines
  • 4. 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)
  • 6. TYPICAL APPLICATION OF A DEMUX Multiple Destinations Single Source Selector B/W Laser Printer Fax Machine D0 DEMUX X D1 D2 Color Inkjet Printer D3 B A Selected Destination 0 0 B/W Laser Printer Pen Plotter 0 1 Fax Machine 1 0 Color Inkjet Printer 1 1 Pen Plotter 6