Ok, my goal.
I need a uP and some logic, but I would like to do it with one part.
208 pins just won't fit into my package.
Have you looked at any of the FPGA lines yet? If package is a big deal,
you need to pull up some data sheets and check out the packages.
The parts I have used or will be using are the XP from Lattice in the
100 pin QFP and the iCE40 also from Lattice in several useful packages.
The iCE40 data sheet shows a 32 pin QFN, an 84 pin QFN and 100 and 144
pin QFP. Everything else is some fine pitch BGA which I prefer not to
use because of the small drills and fine pitch required of the PCBs.
Xilinx and Altera may have some parts in non-BGA packages too, I'm not
so familiar with those lines. Both of the Lattice families I mention
have on chip Flash or one time programmable memory. That saves a chip
or two for programming.