counter 74ls160

Discussion in 'General Electronics Chat' started by digital1234, Nov 9, 2012.

  1. digital1234

    Thread Starter New Member

    Nov 9, 2012
    7
    0
    im trying to connect a counter to a 7 segment however im getting problems and i couldnt understand how im going to connect the input pins to update by the clock cycle. i need to count from 0 to 9 here under is my design. i really appriciate that im a beginner. thanks
     
    Last edited: Nov 9, 2012
  2. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    I can not see any schematic.
    Can you post it to the AAC server?
    Here is how to do it:
    Attachments and Images

    Bertus
     
  3. digital1234

    Thread Starter New Member

    Nov 9, 2012
    7
    0
    i upload it now in jpeg format thanks :)
     
  4. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    Take a look at the clr and load signals:

    [​IMG]

    Also the RCO signal may NOT be connected to ground, but should be connected to the next counter, if there is one.

    Bertus
     
  5. digital1234

    Thread Starter New Member

    Nov 9, 2012
    7
    0
    but i have a problem to understand the inputs are connected to low how they are going to change so how they need to connected to update thereseleves
     
  6. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    In your schematic the clr line is kept low.
    That way the output will always be 0.

    Bertus
     
  7. digital1234

    Thread Starter New Member

    Nov 9, 2012
    7
    0
    i do not have another counter as i first need to understand to count from 0 to 9 i rearange the circuit however i dont know were i have to need to connect pin rco.
     
  8. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    If you do not have a second counter, the RCO pin should not be connected to anything.
    Bertus
     
  9. digital1234

    Thread Starter New Member

    Nov 9, 2012
    7
    0
    first of all thanks for your and please understand that im a beginner with lack of experience i rearrange the circuit and uploaded however i ahve some mistakes as the 7 segemnt is kept of
     
    • 2.jpg
      2.jpg
      File size:
      50 KB
      Views:
      34
  10. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    You have removed the ground signal.

    Bertus
     
  11. digital1234

    Thread Starter New Member

    Nov 9, 2012
    7
    0
    no, im using multi sim and i didnt copy it by a mistake so the gnd signal is connected in my actual design and it still not working thanks
     
  12. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    You also removed the power from the display.

    Bertus
     
  13. digital1234

    Thread Starter New Member

    Nov 9, 2012
    7
    0
    ythe power i think is the vcc 5v but i really dont know
     
  14. bertus

    Administrator

    Apr 5, 2008
    15,648
    2,348
    Hello,

    For TTL chips the power is 5 Volts, the Vcc is the plus of the power supply.
    The Vdd is ground.

    Bertus
     
Loading...