> Are the code changes, going from a 16f84 to a 16F648A, the same as what
> Maarten said they would be going to a 16F628?

I have no personal experience with the 16F648A, but since the
datasheet is identical for 16F627A, 16F628A and 16F648A, I would say
yes. The only difference seems to be the memory size (1 KWord, for the
16F627A, 2 KWord for the 16F628A and 4 KWord for the 16F648A).

Note that previously I gave a list of differences between the 16F628
and the 16F628A: most of these differences are really obscure. If your
programmer can support it, using the 'A' part is the wiser choice.

Greetings,
Maarten Hofman.

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist