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Thread: HCF 4017 Equal Ic's with more Outputs

  1. #1
    Gayan Soyza Excellent Gayan Soyza Excellent Gayan Soyza Excellent Gayan Soyza Excellent Gayan Soyza Excellent Gayan Soyza Excellent
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    Arrow HCF 4017 Equal Ic's with more Outputs

    I need to drive around 15-20 led's in my 20x7 display project.Its having 20 columns.
    At the moment I Driving through 4017 its having only 10 outputs.so I added another 4017.Its difficult to place & solder two 4017's.

    Do u have any other driving IC same like 4017 having CLKIN & RESET options with more outputs.....

    Thankx.....


  2. #2
    pouchito Newbie
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    It is not that hard to connect 2 CD 4017 together , you have to use the carry out of the first to connect it to the second....
    I think there are binary counters and decade counters , I don't think there is a single IC that counts to 20 ....

  3. #3
    mvs sarma Excellent mvs sarma Excellent mvs sarma Excellent mvs sarma Excellent mvs sarma Excellent mvs sarma Excellent mvs sarma Excellent mvs sarma Excellent mvs sarma Excellent
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    Quote Originally Posted by Gayan Soyza
    I need to drive around 15-20 led's in my 20x7 display project.Its having 20 columns.
    At the moment I Driving through 4017 its having only 10 outputs.so I added another 4017.Its difficult to place & solder two 4017's.

    Do u have any other driving IC same like 4017 having CLKIN & RESET options with more outputs.....

    Thankx.....
    then try SMDs with small child card
    may be you get a binary with 0-15 outputs-- try
    Regards,
    Sarma.

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