4-1 circuit...i'm new to this.

Discussion in 'Homework Help' started by VAALLDAY434, Apr 28, 2010.

  1. VAALLDAY434

    Thread Starter New Member

    Apr 28, 2010
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  2. BMorse

    Senior Member

    Sep 26, 2009
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    What is it that you do not understand?? It seems very straight forward...

    B. Morse
     
  3. VAALLDAY434

    Thread Starter New Member

    Apr 28, 2010
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    I dont know anything about these and wanted to know if someone could do a 4-1 of this and send me the end results
     
  4. VAALLDAY434

    Thread Starter New Member

    Apr 28, 2010
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    anyone......
     
  5. SgtWookie

    Expert

    Jul 17, 2007
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    What do you mean, a 4-1 circuit?
     
  6. VAALLDAY434

    Thread Starter New Member

    Apr 28, 2010
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    design a 4 to 1 multiplexer
     
  7. BMorse

    Senior Member

    Sep 26, 2009
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  8. VAALLDAY434

    Thread Starter New Member

    Apr 28, 2010
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    Im lost......
     
  9. VAALLDAY434

    Thread Starter New Member

    Apr 28, 2010
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    read the article from above, however, I dont understand the connections in Semicir
     
  10. retched

    AAC Fanatic!

    Dec 5, 2009
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    Ok, Im confused.. Are you trying to figure out how to use Simcir, or a specific circuit?
     
  11. VAALLDAY434

    Thread Starter New Member

    Apr 28, 2010
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    how to use semicir to create a 4-1 mulitplexer
     
  12. VAALLDAY434

    Thread Starter New Member

    Apr 28, 2010
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    how to use semicir to create a 4-1 mulitplexer...anyone
     
  13. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    Take a look at the datasheet of an DM74153.

    Bertus
     
  14. VAALLDAY434

    Thread Starter New Member

    Apr 28, 2010
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    ^^^ Bertus Could you show me how do do this from my my post in this thread in semicir?
     
  15. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    You will have a problem building it in this program.
    The space is to limited and there are no multiple input gates.

    [​IMG]

    Copied from the datasheet.

    Bertus
     
  16. VAALLDAY434

    Thread Starter New Member

    Apr 28, 2010
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    Thanks bertus....i Have two more questions if you could help.

    1) given hexadecimal
    0001 A2
    0002 11
    0003 FE

    What does the contents of A register after the execution of the following instructions.
    00001000 00000000 00000001
    00011000 00000000 00010001
     
  17. VAALLDAY434

    Thread Starter New Member

    Apr 28, 2010
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    2)what is the diagram of the following?

    A B A* AB A* (+) (AB)
    0 0 1 0 1
    0 1 1 0 1
    1 0 0 0 0
    1 1 0 1 1
     
  18. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    The answer can only be given when you know what the instructions should do and whre register A is.
    The representation you now give does not say enough.

    Bertus
     
  19. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    I moved it to the homework help section as the question look like homework.

    I think you need to dive into some digital electronics pages.

    Here are some pages of the EDUCYPEDIA on digital electronics with lots of links:
    http://www.educypedia.be/electronics/digitaltechnology.htm

    Digital electronics:
    Arithmetic circuits D/A-A/D converters Number systems Codes and decoders Flip flops Technology Counters and registers General overview Technology-CMOS Digital logic Memories Technology-TTL Timers and oscillators

    Bertus
     
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