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help identifying mystery gate array

Discussion in 'Electronic Design' started by Don Lancaster, May 2, 2013.

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  1. Got a bunch of these from an auction and they look valuable...

    http://www.tinaja.com/images/bargs/84pin1.jpg


    Shown is the bottom of the chip with the unprogrammed device number

    The chip is presumed to be a popular mil-spec gate array in a gull wing
    84 epoxy package.

    The top of the chip is identified as

    OTZy9-1420129
    Revision-
    Mfg Date- 9946
    U7-1

    Presumably these can be reprogrammed for a tiny fraction of original
    cost new.

    Believed to be full mil spec aerospace.

    Need to know the original chip manufacturer and data sheet.
    None of the obvious part number choices line up.


    ============

    BTW, insider secrets of getting this quality images are found at

    http://www.tinaja.com/whtnu13.shtml#d03.23.13
    --
    Many thanks,

    Don Lancaster voice phone: (928)428-4073
    Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
    rss: http://www.tinaja.com/whtnu.xml email:

    Please visit my GURU's LAIR web site at http://www.tinaja.com
     
  2. Hope they're not OTP (eg. antifuse) type, which are popular in such
    applications for rad-hardness etc. Plastic PLCC-84 package, though.
    Adobe Photoshop's "Perspective" crop function will allow you to get
    rid of that irritating angular misalignment and distortion in a snap.

    Drag the corner handles to line each of the four sides up with the
    package edges, which defines the perspective correction, then pull the
    center handles of each side out to define the area to be cropped.
     
  3. And where do I get a free copy of Adobe Photoshop?

    --
    Many thanks,

    Don Lancaster voice phone: (928)428-4073
    Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
    rss: http://www.tinaja.com/whtnu.xml email:

    Please visit my GURU's LAIR web site at http://www.tinaja.com
     
  4. The gimp does this too AFAIK.
     
  5. josephkk

    josephkk Guest

    Sure does. Moreover, so does IrfanView with a much friendlier user
    interface.

    ?-)
     
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