Path: utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!usc!brutus.cs.uiuc.edu!uakari!xanth!ames!rex!hoang
From: hoang@rex.cs.tulane.edu (Dzung Hoang)
Newsgroups: sci.electronics
Subject: Re: 2764 UVEPROM.
Message-ID: <2295@rex.cs.tulane.edu>
Date: 25 Feb 90 05:32:38 GMT
References: <2446@loral.UUCP> <1990Feb24.151348.29738@mthvax.cs.miami.edu>
Reply-To: hoang@rex.UUCP (Dzung Hoang)
Organization: Computer Science Dept., Tulane Univ., New Orleans, LA
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In article <1990Feb24.151348.29738@mthvax.cs.miami.edu> dnelson@mthvax.cs.miami.edu (Dru Nelson) writes:
>In article <2446@loral.UUCP> miller@loral.UUCP (BIG DAVE) writes:
>>Does anyone know a way of protecting the data that's been stored in a 2764,
>>8KX8, EPROM ?. Is there a way of safegarding data stored in such devices
>
>  Is this a joke posting that I haven't been told about? (like the WOM chip)
>
>  If not, I think this is a great example of how the signal to noise ratio
>  on the internet is becoming :-).
>
>  Seriously though, if you want to protect your data, you should contact
>  Nintendo or Tengen.

    On the serious side, if by "protection," the original poster means
write/erase protection, then there are one-time programmable (OTP) versions
of certain 27XXX EPROMs.  I saw ones for the 27128 and up but not for the
2764.  Other ways to protect the EPROM is to put an piece of opaque tape
over the round window.

Dzung Hoang
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