Clocks Of Ic-74ls95

Discussion in 'Homework Help' started by bhuvanesh, Aug 29, 2014.

  1. bhuvanesh

    Thread Starter Member

    Aug 10, 2013
    268
    2
    Here two clocks are used CP2 for loading parallel data's and CP1 for loading data serially by shifting .Why two clocks are being used here.Thank you in advance.
     
  2. MrCarlos

    Active Member

    Jan 2, 2010
    400
    134
    Hello Bhuvanesh
    I guess because it is necessary for the architecture of the device.
    Or, how would you do with only one clock ?.
     
    bhuvanesh likes this.
  3. ScottWang

    Moderator

    Aug 23, 2012
    4,855
    767
    Your circuit has some errors, the correct circuit is here.
    Please check page 2 and using 1 and 0 to the inputs, maybe you will find something.
     
    bhuvanesh likes this.
  4. MrCarlos

    Active Member

    Jan 2, 2010
    400
    134
    Hello ScottWang

    I have rotated the bhuvanesh’s image.
    I only encounter an error.
    However, everything else seems the same; bhuvanesh image and the image in Motorola and Texas Instruments data sheets.

    The reason of why two clocks I do not know. Would have to ask the IC designer.
    It may work with only one input Clock. But would not be 74LS95.
    As shown in the picture: X 74LS95 Shift Register Single clock.png attached.
     
    bhuvanesh likes this.
  5. ericgibbs

    AAC Fanatic!

    Jan 29, 2010
    2,503
    380
    Hi,
    This clip from a data book explains the clocks in more detail.
     
    bhuvanesh likes this.
  6. bhuvanesh

    Thread Starter Member

    Aug 10, 2013
    268
    2
    thanks.i learned gating clock produce propagation delay,doesn't it?
     
  7. MrCarlos

    Active Member

    Jan 2, 2010
    400
    134
    Hello bhuvanesh

    You say:
    -I Learned clock gating occurs propagation delay, doesn't it ?-

    Yes, that's right, all the signals, once entering the IC’s, have a propagation delay time.
     
    bhuvanesh likes this.
  8. bhuvanesh

    Thread Starter Member

    Aug 10, 2013
    268
    2
    do u have circuit for the given explanation ?
     
  9. ericgibbs

    AAC Fanatic!

    Jan 29, 2010
    2,503
    380
Loading...