The "9915" code refers to "Year 99", "Week 15" that is, near the end of April. I don't know about the "B3P" suffix. Regards, Andres Tarzia Technology Consultant, SMART S.A. e-mail: atarzia@smart.com.ar -----Original Message----- From: Russell McMahon [mailto:apptech@CLEAR.NET.NZ] Sent: Tuesday, May 18, 1999 04:39 To: PICLIST@MITVMA.MIT.EDU Subject: i - 16F877 samples ii - PIC 18xxx info [...content deleted...] Code on top is 9915B3P - how old is that (where'd I put that recent release re new date codes :-)) [...content deleted...] Russell McMahon