Mostek MK4027N - test-drb@ccmp.vtda.org

7 Oct 1999

--- Lawrence LeMay &lt;lemay(a)cs.umn.edu&gt; wrote:
...
  Does anyone know how many memory bits are in a Mostek
MK4027N? Its 
 also labelled S7748A.

 I'm guessing its either 4K x 1, or 16K x 1, which would mean the 
 pdp8/a memory board I have is either the 32K or 128K model. 
AFAIK, it's 4Kx1.  The 128K board is hex-wide because it uses the fifth
edge for extra address bits (along with the KT8A for control).

-ethan

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