Difference between CD4511 and 74LS47

Discussion in 'Homework Help' started by Tanur, Feb 14, 2015.

  1. Tanur

    Thread Starter New Member

    Feb 14, 2015
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    what's the difference between CD4511 and 74LS47?
    thanks
     
  2. ScottWang

    Moderator

    Aug 23, 2012
    4,855
    767
    74LS47 just a 4 bits BCD to 7-seg decoder, but CD4511 not just a decoder and it has 4 bits latches.
     
  3. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,347
    Hello,

    Also the 7400 series and 4000 series have different properties.
    The 7400 series is TTL based and the 4000 series is CMOS based.
    Have a look at the links of the following pages of the EDUCYPEDIA:
    TTL technology
    CMOS technology

    Bertus
     
  4. Tanur

    Thread Starter New Member

    Feb 14, 2015
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    0
    sorry but i'm only 16 and english is not my native language.
    can you please tell me the difference between 4511 and 7447 in a few sentences?
     
  5. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,347
    Hello,

    As said the 4511 is CMOS technology that can be used between 5 and 15 Volts and has a latch (buffer) in the decoder chip available.

    [​IMG]

    The 7447 is TTL technology that only can be used on 5 Volts and has only a decoder inside.

    [​IMG]

    For more info look in the attached datasheets.

    Bertus
     
  6. Tanur

    Thread Starter New Member

    Feb 14, 2015
    3
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    thank you!!!!!
     
  7. absf

    Senior Member

    Dec 29, 2010
    1,493
    372
    As a beginner, you also need to know that 7447 uses a common-anode 7-segment LED while 4511 uses a common-cathode 7-segment LED for display.

    Allen

    7447&4511.PNG
     
    Last edited: Feb 14, 2015
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