Cant find datasheet for 7604

Discussion in 'General Electronics Chat' started by Robin Mitchell, Apr 7, 2011.

  1. Robin Mitchell

    Thread Starter Well-Known Member

    Oct 25, 2009
    734
    200
    Hi everyone

    I need heko finding datasheet + infor for these chips:

    7604
    7628
    7606
    7610
    7602

    They also have 14473532 printed on too

    They come from an old mainframe memory computer from 60's or 70's (not sure) there for im sure they are RAM but really want data sheets :)

    Thanks,
    Robin
     
  2. matty204359

    Member

    Apr 6, 2011
    105
    3
    maybe try searching Ebay for the vintage ICS... perhaps the numbers you have listed are date codes.
    7604 4th week of 1976
    7628 week 28 of 1976.... Et cetera.
     
  3. Papabravo

    Expert

    Feb 24, 2006
    10,148
    1,791
    I think they are date codes also. Have you got pictures? You think they are RAM but those numbers do not correspond to any series of RAM chips from that era that I am familiar with. If they are RAM then it is likely they are x1 types so they would be arranged in rows of 8 or 16 chips. There were no RAM chips of any size prior to about 1970.
     
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