[Test-Equipment] Spec Sheet for HITACHI "HN29W256SAHO5" Compact Flash Controller

[Rainer Alpert]

I am booting a small data collection computer from a Compact Flash card in
True IDE mode.
Since it will be used in a classified environment, I need to disallow any
writes to the CF card.
My intention is to disable writes electrically INSIDE the CF card.
After opening two 256MB CF cards from different manufacturers, the
controller chip inside turned out to be in both cases a HITACHI
"HN29W256SAHO5".
I can't find the specs anywhere, not even on pure Japanese websites. For my
purposes, I'm primarily interested in the pinout.
 
Can anybody help?? 
 
 
Thanks,
Rainer Alpert (KC5VHO)


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