Charles Laforge wrote:
>
> Hi Guys
>
> I've been away for a while and this question has probably been asked
> twelve thousand times but .... here goes one more.
>
> Is tthe PIC16F84 a direct replacement for the 16C84?  Can in be
> programed the same using the same programmers and such?
>
> Thanks for you help!
>
> Charles
>
> ______________________________________________________
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From the Data Sheet Appendix E

1) The polarity of the PWRTE configuration bit has been reversed. Ensure
that the programmer has the bit correctly set before programming. (Or if
it supports __Config, use that)

2) The PIC16F84 has larger RAM size

3) The MCLR pin now has an on-chip filter. The input signal on MCLR pin
will require a longer low pulse to generate an interrupt

4) Many electrical specs have improved.