I seem to remember something about some kind of a limited lifetime on
these (Maybe it's not limited writes, but limited READs?)  Maybe that's
from their web pages.

  Mark

James Newton wrote:
>
> By way of answering my own question (sort of) the
> http://www.ramtron.com/products/brochure/brochure.htm Serial FRAM from
> RAMTRON     is a non-volatile high speed (IIC at 200k or SPI at 2.1MHz w/ no
> write delay) memory with unlimited write endurance. As of today only
> available in 2k bytes or less but larger sizes are planned. Rep by
> http://www.englishsales.com/ distributed by http://www.future.ca approx.
> $2.95 each for the 2kB part and they say that have many thousands in-stock
> (offered sample etc...). Its not AT45d081 pin compatible but since its only
> a 8 pin DIP or SMT, finding room next to all the wasted space in 28 or 32
> pin space required for the Atmel serial FLASH shouldn't be hard.