4893RE: [midatlanticretro] NCR MNMOS EAROM Memory Datasheet
- Feb 3, 2007Hi, Synton88. Thanks for delurking. Let me know (off-list) when you'll be
able to visit, and I will give you a tour of the InfoAge facility.
From: synton88 [mailto:microwavejoe@...]
Sent: Saturday, February 03, 2007 1:28 PM
Subject: [midatlanticretro] NCR MNMOS EAROM Memory Datasheet
Ok, I'm a lurker here, learned & joined MARCH when I made the trek up from
MD to the Trenton Fest a couple years ago. Hope to get to NJ area again to
see all the great things the group has done!
Sorry for the slightly off topic post, but this regards a company who was a
player in components for retro period machines....
I am looking for the data sheet of memory made by NCR (aka Nitron) in the
1980's time period:
NC7033 336 bit (21x16) Word Alterable, MNMOS EAROM "Word Alterable ROM"
NCR52801 N7700020FMNABA 14 Pin Dip of same apparent function as NC7033
It appears to be a serial RAM, made at a time when rewrite lifetime was a
significant issue, so data was often written identically in several
locations and a correct read verified by voting the identical location read
Anyone of MARCHs guru's have any old 80's data sheets?
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