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RE: [AVR-Chat] Saving in EEPROM without corruption?

2004-09-21 by Larry Barello

Good thing most EEPROM now days has 100k cycles minimum and more like 1
million cycles - and that is at temperature and supply extremes.  Room temp,
normal operation is much, much better.

These issues apply to modern FLASH as well.  I was talking with a guy at
Cypress about their PsoC processor with ~30k cycles guaranteed on the FLASH.
He said at normal conditions the 10 year retention is well into many
millions of cycles.  It is only at the extremes (105C die temp, low Vcc)
that they get anywhere near the specified 30k cycles.




-----Original Message-----
From: Robert Adsett

At 05:11 PM 9/21/04 +1000, you wrote:
>This App Note looks interesting. Unfortunately I have had no luck locating
>it on national.com using variations of the search 'an-482 error detection
>correction.
>Could you send a link to the place we can get it from.

National split EE's off to Fairchild and it looks like Fairchild obsoleted
them and dumped the app notes.  I found someone with an archived copy.

http://manuales.elo.utfsm.cl/datasheet/national/pdf/nsc04320.pdf

It would probably be a goos idea to save a copy in case the archive
disappears.

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