Interfacing with 5V ratiometric sensors is so much nicer with a 5V =20 chip. And 5V parts with a 3.3V core (16F1xxx for example), suck up an =20 extra pin for the core regulator capacitor, which I really want back. Cheers, -Neil. Quoting Dwayne Reid : > At 08:56 AM 9/6/2011, V G wrote: > >> I'm not sure if that's the case or not, but I've grown to love 3.3V part= s. >> What's not to like? > > 3.3V parts don't work with TI's TPIC6*595 power shift registers > without level shifters. The TPIC parts are 5V only devices with > Schmitt Trigger control inputs and 3.3V is well below minimum logic > HI level. This is seriously unfortunate. > > There are many other 5V-only interface devices out there but this is > the one that affects me greatly. So: 5V PICs in those designs. > > dwayne > > -- > Dwayne Reid > Trinity Electronics Systems Ltd Edmonton, AB, CANADA > (780) 489-3199 voice (780) 487-6397 fax > www.trinity-electronics.com > Custom Electronics Design and Manufacturing > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .