Driving a 3.5 digit LCD display

Discussion in 'General Electronics Chat' started by smokie, Apr 23, 2009.

  1. smokie

    Thread Starter Member

    Apr 15, 2009
    I want to build a three digit up/down counter. I was going to use LEDs but now that I see the 3.5 digit LCD display, I'd rather use that.

    Can I somehow interface the LCD display to three 4510 ICs?
  2. SgtWookie


    Jul 17, 2007
    Do you need the capability to count both up and down? If not, then why not look at the 4553 3-digit BCD up-counter instead?

    You haven't given us much to go on with the 3.5 digit LCD display. Do you have a link to a datasheet?
  3. AlexR

    Well-Known Member

    Jan 16, 2008
    To drive a bare bones LCD you need a LCD driver chip such as the MAX1492.
  4. smokie

    Thread Starter Member

    Apr 15, 2009
    Thanks for your help guys, yes, I do need both up and down count.
    The LCD displays I've seen have a circuit attached for measuring voltage.

    I guess I need to find a "bare bones" LCD display.

    The reference to the LCD driver chip is what I needed. I think I can take it from there.