Eric Slight wrote: > if I buy a 16F84, I am stuck with only 1K of eeprom program memory, > is there a way to reroute the port for data/adress bus? No. If you want an external address/data bus, you'll need to use one of the PIC17 family. -Andy === Andrew Warren - fastfwd@ix.netcom.com === Fast Forward Engineering - Vista, California === http://www.geocities.com/SiliconValley/2499 (personal) === http://www.netcom.com/~fastfwd (business)