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14602Re: [cosmacelf] IC Date Codes

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  • Lee Hart
    Dec 12, 2013
      joshbensadon@... wrote:
      > I'm sure it's come up in the past, but that's ok, after all, that's what
      > this message board is all about.
      > How to tell when a 3 digit date code is talking about 1970's or 1980's?
      > I'm going to hope by 1990 they were seeing value in writing 2 digit year
      > codes.
      > I have here a CD74HC373E from RCA, date code is 441. Is this 1974? or 1984?
      > If it was an LS device, I would safely guess 1974, but when did the HC
      > family come out?

      I don't think there were any HC parts in the 1970's, so I'd guess 1984.
      But I don't know for sure. You could ask the manufacturer.

      Anyone who has never made a mistake has never tried anything new.
      -- Albert Einstein
      Lee Hart -- See my Xmas projects at www.sunrise-ev.com/projects.htm
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