Yes. I've done it a lot both ways (627 -> 628 and 628 -> 627), as long as you're under 1K of program memory you're OK. Everything else is the same, even RAM. Dale --- We are Dyslexia of Borg. Fusistance is retile. Your ass will be laminated. On Wed, 14 Aug 2002, Josh Koffman wrote: > Ok, this should be easy, but if I have some precompiled code for a > 16f627, can I just go ahead and program a 16f628 with it with no > modifications? I've been working too long on this and my brain is > addled. I need a reality check :) -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu