At 01:35 PM 02/10/00 +0100, you wrote:
>I'm not sure exactly what the difference is either, but
>
>Why does the PIC 16F87x data sheet have fifferent endurance figures for the
>"flash" part of memory than for the "eeprom" part?
>
>the data sheet quotes on page 157::
>
>Ep typical 1000 (flash endurance)
>Ed typical 100 000 (eeprom endurance)
>
>looks to me like different technology.......
>
>regards, Kevin

Hi Kevin,

It is more expensive to make the higher endurance EEPROM. Microchip is
simply optimising the write cycle endurance of there EEPROMs cells
according to the likely write cycle requirements. Both the "Flash" and
"Data EEPROM" are EEPROM. Have a look at the programming specs for
the 16C84 and 16F84 and both the "Flash" and "Data EEPROM." Notice
any difference? There is none because it is ALL EEPROM.

-Jim

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Regards,

Jim Robertson
NEWFOUND ELECTRONICS
Email: newfound@pipeline.com.au
http://www.new-elect.com
MPLAB compatible PIC programmers.

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