7 segment display

Discussion in 'The Projects Forum' started by bwaley, Jun 30, 2008.

  1. bwaley

    Thread Starter Member

    Jun 1, 2008
    27
    0
    I have a segment dispaly and
    I would like to display 4 bit up/down counter's output whose outputs are four and the display has 7 inputs. how do I do the connections?
     
  2. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    You need a BCD to 7-Segment Display Driver IC, like a 4000-series CMOS CD4511B or CD4543B.
    If your counter is binary, things get more complicated. A Dallas/Maxim ICM7212 IC can take a 4-bit binary input and drive up to four 7-segment LED displays.
    http://datasheets.maxim-ic.com/en/ds/ICM7211-ICM7212.pdf
     
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