About 4017 IC

Discussion in 'Electronic Design' started by neberom, Oct 25, 2006.

  1. neberom

    neberom Guest

    Can anyone help me describe the function and the internal circuit
    design of 4017 IC.
    The design or internal circuitry is more important for me.
    Thank you.
     
    neberom, Oct 25, 2006
    #1
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  2. neberom

    PeteS Guest

    neberom wrote:
    > Can anyone help me describe the function and the internal circuit
    > design of 4017 IC.
    > The design or internal circuitry is more important for me.
    > Thank you.
    >

    So just download the data sheet - it has a logic diagram

    http://www.onsemi.com/PowerSolutions/product.do?id=MC14017B

    Cheers

    PeteS
     
    PeteS, Oct 25, 2006
    #2
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  3. neberom

    Guest

    PeteS wrote:
    > neberom wrote:
    > > Can anyone help me describe the function and the internal circuit
    > > design of 4017 IC.
    > > The design or internal circuitry is more important for me.
    > > Thank you.
    > >

    > So just download the data sheet - it has a logic diagram
    >
    > http://www.onsemi.com/PowerSolutions/product.do?id=MC14017B
    >
    > Cheers
    >
    > PeteS


    Download the datasheet, also here is a scan from Archer - Semiconductor
    Reference and Application Handbook 1978

    http://www.datasheetarchive.com/datasheet.php?article=3750695

    Regards
    Mark
     
    , Oct 25, 2006
    #3
  4. neberom

    PeteS Guest

    wrote:
    > PeteS wrote:
    >
    >>neberom wrote:
    >>
    >>>Can anyone help me describe the function and the internal circuit
    >>>design of 4017 IC.
    >>>The design or internal circuitry is more important for me.
    >>>Thank you.
    >>>

    >>
    >>So just download the data sheet - it has a logic diagram
    >>
    >>http://www.onsemi.com/PowerSolutions/product.do?id=MC14017B
    >>
    >>Cheers
    >>
    >>PeteS

    >
    >
    > Download the datasheet, also here is a scan from Archer - Semiconductor
    > Reference and Application Handbook 1978
    >
    > http://www.datasheetarchive.com/datasheet.php?article=3750695
    >
    > Regards
    > Mark
    >

    Why? When I can just download it from OnSemi anyway?
    The original company no longer exists for this stuff of course, but the
    MC1xxxx is functionally identical.

    Personally I prefer to get a datasheet from the semi mfr directly.

    Cheers

    PeteS
     
    PeteS, Oct 25, 2006
    #4
  5. neberom wrote:
    > Can anyone help me describe the function and the internal circuit
    > design of 4017 IC.
    > The design or internal circuitry is more important for me.
    > Thank you.


    The function is a scale of ten counter, with individual outputs.

    This could be implemented internally in many different ways.

    It might be a synchronous 4-bit counter with feedback and a decoder.

    Or maybe a twisted-ring counter, with all the required setup logic and
    xor decoders.

    Or a shift-register.

    The internal design isnt of much consequence 9as long as the logic
    outputs and edge overlaps or underlaps stay the same) as these are
    generally used as "black boxes".
     
    Ancient_Hacker, Oct 25, 2006
    #5
  6. neberom

    Eeyore Guest

    neberom wrote:

    > Can anyone help me describe the function and the internal circuit
    > design of 4017 IC.
    > The design or internal circuitry is more important for me.


    Surely this *has* to be homework !

    Education serves no purpose if you don't learn these things for yourself
    btw.

    Graham
     
    Eeyore, Oct 25, 2006
    #6
  7. neberom

    PeteS Guest

    Eeyore wrote:
    >
    > neberom wrote:
    >
    >
    >>Can anyone help me describe the function and the internal circuit
    >>design of 4017 IC.
    >>The design or internal circuitry is more important for me.

    >
    >
    > Surely this *has* to be homework !
    >
    > Education serves no purpose if you don't learn these things for yourself
    > btw.
    >
    > Graham
    >



    As I just noted on s.e.b., I have been meaning to write 'The authoritive
    guide to posting your homework questions to s.e.b and s.e.d' (in the
    Monty Python sense, of course).

    Perhaps I really should - or maybe start a thread for suggestions and
    collate it ;)

    Cheers

    PeteS
     
    PeteS, Oct 25, 2006
    #7
  8. neberom

    PeteS Guest

    Eeyore wrote:
    >
    > neberom wrote:
    >
    >
    >>Can anyone help me describe the function and the internal circuit
    >>design of 4017 IC.
    >>The design or internal circuitry is more important for me.

    >
    >
    > Surely this *has* to be homework !
    >
    > Education serves no purpose if you don't learn these things for yourself
    > btw.
    >
    > Graham
    >


    Actually, what annoys me is the OP could have found the datasheet link
    with a 2 second search.

    Cheers

    PeteS
     
    PeteS, Oct 25, 2006
    #8
  9. neberom

    Eeyore Guest

    PeteS wrote:

    > Eeyore wrote:
    > > neberom wrote:
    > >
    > >>Can anyone help me describe the function and the internal circuit
    > >>design of 4017 IC.
    > >>The design or internal circuitry is more important for me.

    > >
    > >
    > > Surely this *has* to be homework !
    > >
    > > Education serves no purpose if you don't learn these things for yourself
    > > btw.
    > >
    > > Graham

    >
    > Actually, what annoys me is the OP could have found the datasheet link
    > with a 2 second search.


    This probably means he'll go on to be a 'captain of industry' !

    Graham
     
    Eeyore, Oct 25, 2006
    #9
  10. neberom

    PeteS Guest

    Eeyore wrote:
    >
    > PeteS wrote:
    >
    >
    >>Eeyore wrote:
    >>
    >>>neberom wrote:
    >>>
    >>>
    >>>>Can anyone help me describe the function and the internal circuit
    >>>>design of 4017 IC.
    >>>>The design or internal circuitry is more important for me.
    >>>
    >>>
    >>>Surely this *has* to be homework !
    >>>
    >>>Education serves no purpose if you don't learn these things for yourself
    >>>btw.
    >>>
    >>>Graham

    >>
    >>Actually, what annoys me is the OP could have found the datasheet link
    >>with a 2 second search.

    >
    >
    > This probably means he'll go on to be a 'captain of industry' !
    >
    > Graham
    >


    Somthing like the Captain of the Titanic, methinks, but without the hard
    work to become a 'captain'

    Pete
     
    PeteS, Oct 25, 2006
    #10
  11. neberom

    Guest

    Ancient_Hacker wrote:
    > neberom wrote:
    > > Can anyone help me describe the function and the internal circuit
    > > design of 4017 IC.
    > > The design or internal circuitry is more important for me.
    > > Thank you.

    >
    > The function is a scale of ten counter, with individual outputs.
    >
    > This could be implemented internally in many different ways.
    >
    > It might be a synchronous 4-bit counter with feedback and a decoder.
    >
    > Or maybe a twisted-ring counter, with all the required setup logic and
    > xor decoders.
    >
    > Or a shift-register.
    >
    > The internal design isn't of much consequence as long as the logic
    > outputs and edge overlaps or underlaps stay the same) as these are
    > generally used as "black boxes".


    In fact the RCA data sheet from the 1975 COS/MOS data book describes
    the 4017 as a five stage Johnson decade counter. See

    http://www.play-hookey.com/digital/johnson_counter.html

    The virtue of this rather inefficient use of bistables is that you get
    spike-free decoded outputs.

    --
    Bill Sloman, Nijmegen
     
    , Oct 26, 2006
    #11
  12. neberom

    Rich Grise Guest

    OT: Homework Guidelines was Re: About 4017 IC

    On Wed, 25 Oct 2006 21:10:30 +0000, PeteS wrote:

    > As I just noted on s.e.b., I have been meaning to write 'The authoritive
    > guide to posting your homework questions to s.e.b and s.e.d' (in the
    > Monty Python sense, of course).
    >
    > Perhaps I really should - or maybe start a thread for suggestions and
    > collate it ;)


    OK, I'll play. :)

    First, ask www.google.com your question - just type it into the search
    text input box - your answer will probably come up.

    2. Ask the teacher. If they can't make you understand, they're no good
    and should be fired.

    3. Ask your classmates/study partner, unless you've already annoyed them
    to death and they won't talk to you any more.

    4. When all else fails, read the instructions.

    Hope This Helps!
    Rich
     
    Rich Grise, Oct 26, 2006
    #12
  13. neberom

    Tom Bruhns Guest

    PeteS wrote:
    > Eeyore wrote:
    > >
    > > neberom wrote:
    > >
    > >
    > >>Can anyone help me describe the function and the internal circuit
    > >>design of 4017 IC.
    > >>The design or internal circuitry is more important for me.

    > >
    > >
    > > Surely this *has* to be homework !
    > >
    > > Education serves no purpose if you don't learn these things for yourself
    > > btw.
    > >
    > > Graham
    > >

    >
    >
    > As I just noted on s.e.b., I have been meaning to write 'The authoritive
    > guide to posting your homework questions to s.e.b and s.e.d' (in the
    > Monty Python sense, of course).
    >
    > Perhaps I really should - or maybe start a thread for suggestions and
    > collate it ;)
    >
    > Cheers
    >
    > PeteS


    The problem I see with that (as far as students looking for help
    actually reading it) is that the ones looking for help are generally
    going to just post their question without reading any FAQs or the like.

    But if they did read it, the first thing I'd want to tell them is that
    I'm much more apt to answer a question that shows they've given the
    problem some thought before posting. They can be off in the weeds
    without a clue, close to the answer, or only needing a little guidance
    understanding why the answer they got is right -- I don't care which.
    The key is that they've given it a decent shot, if not their best shot,
    before asking for help. Otherwise, it's not asking for help, it's
    asking for someone to do their work for them.

    Along with that perhaps should be a guide to the replies. I'm not
    always very good at it, but I'd prefer to limit my answer to things
    that guided the poster's thinking, rather than just giving the final
    answer. "Think about what the capacitor does when ..." instead of "You
    dummy, the output is a half-wave rectified sinewave."

    Finally, if the OP doesn't bother to acknowledge the help they got,
    I'll be less likely to reply the next time I see a question from them.

    Cheers,
    Tom
     
    Tom Bruhns, Oct 26, 2006
    #13
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