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Re: [lpc2000] Re: Using flash memory instead of eeprom?

2005-02-01 by Robert Adsett

At 04:25 AM 2/1/05 +0000, embeddedjanitor wrote:
>AFAIK FRAM does not have unlimited life. It was around 10^6 cycles
>when I forst looked at it many years back and I believe it is now
>around 10^12 cycles, compared to around 10^5 cycles for EEPROM and
>flash.


They rate the low voltage devices as unlimited read/write cycles (I just 
re-checked).  As I recall, it is only within the last couple of years that 
devices rated for that have been available.  The high voltage (5V) devices 
range from 10^10 to 10^12 read/write cycles.  The write speed of FRAM 
compared to ee is certainly an advantage but I wouldn't want to put a 
millisecond clock in an older device.

Robert

" 'Freedom' has no meaning of itself.  There are always restrictions,
be they legal, genetic, or physical.  If you don't believe me, try to
chew a radio signal. "

                         Kelvin Throop, III

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