Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!rutgers!ucsd!ucbvax!hplabs!hpda!hpcupt1!hpsal2!markw
From: markw@hpsal2.HP.COM (Mark Williams)
Newsgroups: sci.electronics
Subject: Re: I Can't copy an EPROM... Help!
Message-ID: <4420001@hpsal2.HP.COM>
Date: 19 Sep 88 17:05:41 GMT
References: <7023@aw.sei.cmu.edu>
Organization: HP System Architecture Lab, Cupertino
Lines: 6

The part number for the master EPROM (MBM27C512) is a Fujitsu P/N, not
Fairchild as the original poster stated.  Some Fujitsu EPROM's require
a different programming algorithm/voltages than the rest of the
industry parts; INTEL used to set a defacto standard, but Fujitsu
and others are evolving new cells.  Make sure you are using the right
part number/algorithm for reading the master EPROM.