Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!uwm.edu!csd4.csd.uwm.edu!wlee
From: wlee@csd4.csd.uwm.edu (Wan Ngai Wayne Lee)
Newsgroups: sci.electronics
Subject: Re: 1764 UVEPROM
Message-ID: <2575@uwm.edu>
Date: 25 Feb 90 00:24:05 GMT
Sender: news@uwm.edu
Reply-To: wlee@csd4.csd.uwm.edu (Wan Ngai Wayne Lee)
Organization: University of Wisconsin-Milwaukee
Lines: 14

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
>once one gives the device to someone else ?. I read the spec sheets and found
>no provisions for 'security bits', ala PALs, so I'm curious as to how one
>might get around to solving such a problem. I would greately appreciate any
>help in this matter.

I don't think there is any protection for EPROMs.
But I know both Motorola and Zilog produce MCUs with
protection for on chip EPROMs.

Wayne Lee
wlee@csd4.csd.uwm.edu