> Greetings,
>
> I am new to this ... I hope I'm doing this right!
>
> I am developing a 16C84 PIC based product with and RS-232 interface and a
> Real-Time Clock.  Any hints, suggestions or recommendations?

Dan,
Tell us what you are up to and we will be able to give you some advice,
otherwise, look for the appropriate application notes.
-----------------------
Conny Andersson / LiTH