Hi all,
I am surprised at the insistence that individual e2prom locations
cannot be changed in the newer 16f84. I use a development programmer
designed by Steve Merchant that checks a location against the code
then programs or not accordingly. I have noticed no differences in
programming times between the c and f 84 parts. I can definitely tell
if there are many locations to be changed on re-programming a part as
the process can take more than  10 seconds whereas if just a few
locations are changed, then the programming is almost instantaneous. I
have *not* noticed any variance on this trait between the c84 and the
f84 parts.

Regards,

 Chris.