Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/18/84; site sdcrdcf.UUCP Path: utzoo!linus!decvax!tektronix!hplabs!sdcrdcf!doon From: doon@sdcrdcf.UUCP (Harry W. Reed) Newsgroups: net.micro Subject: Re: EPROM memory lifetime query Message-ID: <2257@sdcrdcf.UUCP> Date: Thu, 15-Aug-85 16:45:50 EDT Article-I.D.: sdcrdcf.2257 Posted: Thu Aug 15 16:45:50 1985 Date-Received: Mon, 19-Aug-85 22:32:41 EDT References: <-14000@wdl1.UUCP> <6200057@hp-pcd.UUCP> Reply-To: doon@sdcrdcf.UUCP (Harry W. Reed) Organization: System Development Corp. R+D, Santa Monica Lines: 22 Summary: In article <6200057@hp-pcd.UUCP> john@hp-pcd.UUCP (john) writes: ><<< >< >< How long do current EPROMS and EEPROMS hold their memory? >< > > The number that I hear most often is 10 years minumum. This means that >if you are using an Altair 8800 with 1702's then you might have to break >down and buy a new computer in the near future. Otherwise you should pull >out the Eproms, copy them into a programmer and reburn them for another >10 years. > > >John Eaton >!hplabs!hp-pcd!john EPROMS retain data indefinately, EEPROMS have the 5-10 Yr. minimum retention period. Harry Reed sdcrdcf!doon