>
> Do any of the PIC range have a 16 bit data bus?
> I know one of them (which?) has a 16 bit bus made from 2 8 bit buses, but
> isn't that just for extended memory as an address bus?

You're referring to the 17C42. It's not a 16 bit part because all of its
registers are 8 bit. However it communicates to external memory via a
16 bit multiplexed address/data bus.

How's about describing what you need and then we can talk about the 17C42
fitting the applications.

BAJ