Mchip says 100 as minimum, 1000 as tipical. No maximum specified.
I hope this helps.

Imre

PS: Mchip has some article about EEPROM endurance. I think this applies
also for program memories.


On Mon, 13 Sep 1999, Ajay Nagarkar wrote:

> --- Mike Keitz <mkeitz@JUNO.COM> wrote:
> > On Mon, 13 Sep 1999 10:43:50 -0300 Edson Brusque
> > <brusque@FLYNET.COM.BR>
> > writes:
> >
> > >     I've heard that EEPROMs will wear out between
> > 100 and 1000
> > > updates.
> > > That's rights? Someone knows how many times I can
> > update the data
> > > and the
> > > program EEPROM?
> >
> > The two EEPROM spaces are different.  On a F84, the
> > data EEPROM includes
> > an error-control system so it will be millions of
> > writes before it is
> > very likely that data will not be stored correctly.
> > Check the chip data
> > sheet for the latest rating.  The program EEPROM
> > doesn't have this
> > feature so it will fail sooner.  Since the program
> > EEPROM can only be
> > changed in a chip programming setup, Microchip
> > doesn't expect it to be
> > written very many times.
> >
> >
> > ___________________________________________________________________
> > Get the Internet just the way you want it.
> > Free software, free e-mail, and free Internet access
> > for a month!
> > Try Juno Web: http://dl.www.juno.com/dynoget/tagj.
> >
>
> Do you mean to say that program memory cannot be overwritten 1000 times
> ? If not what is the max. for 16c84
> -Ajay
> __________________________________________________
> Do You Yahoo!?
> Bid and sell for free at http://auctions.yahoo.com
>
>