I am about to embark on my first PIC design.

For the application, I estimate that I need 12 I/O lines, 128 bytes of RAM,
and 1K words of ROM.  There is no need for EEROM or A/D.  Lets say we are
targetting a run of 10,000 units.  Cost +/-$1 is not an issue.

It seems that the applicable PIC families are PIC16C558, PIC16C622 and
PIC16C715.

Have I missed any?

Any advice on which of these families to choose?

TIA

Mike