Steve,

Originally posted by mister_e
. . . Also, you have an internal oscillator that can be use with the 4620.
yes,
the INTOSC is another feature of the 4620,
but I don't think it'll be of much use.
If your project really requires 64k of code space
it will most likely require clockspeeds higher than 8MHz.

once I have received the chips I'll do some testing
and I'll keep you posted.

regards

Ralph