Hi, I was wondering if the 16c64 is fully compatible with the 16c74 (without the A/D & serial options). The fact is that I've designed a system on the 16c74 but I didn't use the A/D and the serial comunication interface at all, and now I want to reduce the costs as down as I can. So that I thought on using the 16c64 for final applications. I'll really appreciate any idea. Thank's in advancce Pablo Mochcovsky Buenos Aires, Argentina.