LCD identification?

Discussion in 'General Electronics Chat' started by edwards.aus, Jul 23, 2010.

  1. edwards.aus

    Thread Starter New Member

    Jul 23, 2010
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    Hi all,

    I might be a bit pedantic to post this thread, but please bear with me. :confused:

    This came up when I was working with 16x2 Displaytech LCDs too.

    I have a 16x2 LCD (see attached image). Back plane of the PCB lists the pin-outs:

    1-Vss, 2-Vdd, 3-Vo, 4-Rs, 5-R/W, 6-E, 7...14-DB0...DB7, 15-BLA, 16-BLK.
    (which I read somewhere is the standard pinout)

    The back plane also mentions that the name of the lcd is CM162-4. (No text on the front plane of the PCB).

    When i google the name to find the exact datasheet, the only datasheet that pops up is MC 162-4(attached datasheet) which mentions different pin-outs.

    1-BLA, 2-BLK, 3-Vss, 4-Vdd, 5-Vo, 6-Rs, 7-R/W, 8-E, 9...16-DB0..DB7

    I am guessing MC162 has been misspelled as CM162.

    Can anyone explain the difference between the 2 sets of pin-outs??

    Thanks :)

    Edwards
     
  2. tom66

    Senior Member

    May 9, 2009
    2,613
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    This LCD apparently has a backlight. BAK and BLK are the connections for the LED(s).
     
  3. edwards.aus

    Thread Starter New Member

    Jul 23, 2010
    4
    0
    Yes. It does.

    But what I am wondering is should I follow the pin config on the LCD or the one in the datasheet in the wiring? They are both conflicting with each other. :O

    Thanks
     
  4. AlexR

    Well-Known Member

    Jan 16, 2008
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  5. edwards.aus

    Thread Starter New Member

    Jul 23, 2010
    4
    0
    Ahh... right. My mistake with the CM1624 datasheet.

    Thank you very much.
     
  6. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
    4,769
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