Multiplexers and Demultiplexers

In this lab, students will learn how multiplexers and demultiplexers work, as well as the basics of clock multiplexing. While using Multisim simulate circuits and deploy them to the FPGA on the DSDB board, students will reflect on the similarities and differences between encoders and multiplexers, examine the function of a basic 2-to-1 Multiplexer using logic gates, and observe the behavior of clock multiplexing using an oscilloscope.
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This is lab 7 of 17 in the course, Digital Electronics.

LEARNING OBJECTIVES


After completing this lab, students will be able to:
  1. Reflect on the similarities and differences between encoders and multiplexers
  2. Examine the function of a basic 2-to-1 Multiplexer using logic gates
  3. Observe the behavior of clock multiplexing using an oscilloscope 
 

REQUIRED SKILLS

 
  • Introductory Physics or equivalent
  • Circuits 1 or equivalent

NI ELVIS III

Engineering laboratory solution for project-based learning that combines instrumentation and embedded design with a web-driven experience, delivering a greater understanding of engineering fundamentals and system design.

Digital Systems Development Board for NI ELVIS III

An application board for NI ELVIS III that provides students with a comprehensive education in digital electronics with hands-on experiments to interactively demonstrate concepts in the digital domain.

Multisim

Multisim is a circuit simulation tool built for educators to teach analog, digital, and power electronics by connecting simulation to experimentation. 

Required Software

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  • Multisim 14.0.1 Education or Later - Download
  • NI LabVIEW FPGA Vivado 2014.4 - Download
  • Digilent Hardware Driver (note, the installer above automatically downloads the installer below onto your computer)
    • Navigate to C:\NIFPGA\programs\Vivado2014_4\data\xicom\cable_drivers\nt64\digilent
    • Install install_digilent.exe

Required Hardware

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INSTRUCTOR RESOURCES

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