EPROM Question

Date: Sat, 15 Sep 2007 02:03:12 +0100> From: julesrichardsonuk at yahoo.co.uk> To: > Subject: Re: EPROM Question> > Chuck Guzis wrote:> > On 14 Sep 2007 at 16:13, Chris M wrote:> > > >> Isn't the main issue when programming these things> >> the applied voltage?> > > > Not entirely--particularly in the 128Kbit and under categories, the > > programming algorithm could vary significantly from vendor to vendor. > > Hence the reason that the 'bigger' programmers use cartridges or other ways of > holding data on each manufacturer's part - which is OK until you find > something that the cartridges you have don't cover :-)> > I suppose there's a related question here - if an EPROM is programmed with the > wrong algorithm, but programming still works (and the data then held in the > EPROM is shown to be valid), is there a danger that the EPROM might go > 'forgetful' sooner than if the correct algorithm was used?> > Or is one algorithm as good as another in terms of longevity, and once a bit > is unset / set as necessary it'll stay that way regardless - and the only > thing affected by the algorithm is whether programming works at all?> > I'd rather not have a part go corrupt in a short space of time because the > wrong algorithm was used, but I don't *think* it works that way thankfully...>