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I want to design using by cascading 74*163 ic

Discussion in 'Electronics Homework Help' started by Atakan, Dec 18, 2016.

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  1. Atakan

    Atakan

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    Dec 18, 2016
    I want to design such as count at 33 start and run 77 reset.
    Is it true my image?
     

    Attached Files:

    Last edited: Dec 18, 2016
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    I think you want this.
     
    hevans1944 likes this.
  3. Atakan

    Atakan

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    0
    Dec 18, 2016
    how can i interconnect a b c d and Qa Qb Qc Qd, such as where 33? and where 77?
     
  4. Atakan

    Atakan

    11
    0
    Dec 18, 2016
    is it true?
     

    Attached Files:

  5. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    I'm sorry,. I can't understand what you want.
     
  6. Atakan

    Atakan

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    Dec 18, 2016
    i want to design counter 33 to 77. but i want just using 74*163. because i am not sure what i do.
     
  7. Arouse1973

    Arouse1973 Adam

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    Dec 18, 2013
    What is 33 to 77? Please tell us more about your project.
    Thanks
    Adam
     
  8. Atakan

    Atakan

    11
    0
    Dec 18, 2016
    I have an exam. A question will be cascading counters and digital 74x163. Such as this is starting at count 33 and finishing 77 otherwise starting at count 0 and finishing 80
    Etc. I could not do this question i could not draw with my hand. I am just doing 0- 15 at counting circuit
     
  9. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

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    First you need to understand how to cascade the devices so you can count to a higher number than 15.

    Then you need to understand how to load a number into them.

    Then you need to work out the logic to decide if you have reached a certain maximum count.

    You might want to look for an 8 bit magnitude comparator as that will make the last part easier.
     
  10. Herschel Peeler

    Herschel Peeler

    401
    66
    Feb 21, 2016
    Pins 1, 2 and 9 have no input. Yes, they need to be connected together, but they need an input from something. The Preset inputs need to be either high or low, not floating.

    Clipboard01.jpg

    If this example is good for you, I have most TTL and CMOS chips done up this way. I used to teach this stuff.

    [MOD edited to place image into post]
     
    Last edited by a moderator: Dec 18, 2016
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