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