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Re: [midatlanticretro] Anyone have 4164-15 memory chips?

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  • David Gesswein
    ... If it is providing the refresh address but only 128 it might still be ok since you won t be using the cells it doesn t refresh. I think I stuck a 256k in
    Message 1 of 7 , Feb 26, 2006
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      > I looked at the data sheet attached to the parts that Jameco is
      > selling. It says 256-row refresh. The Z80 only counts through
      > 128 addresses. I think 128-row was std for the 4164 chips.
      > Just something to watch out for.
      >
      If it is providing the refresh address but only 128 it might still be ok
      since you won't be using the cells it doesn't refresh. I think I stuck
      a 256k in a machine to replace a failed 64k but that was long enough ago
      that I'm not positive.

      Checked my stock, only have -20's
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