I stands for Industrial, as in Industrial temperature range. Martin -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Rudy Rudy Sent: 03 December 2001 19:33 To: PICLIST@MITVMA.MIT.EDU Subject: [PIC]: Difference between 16F628-20/P-ND and 16F628-20I/P-ND??? Ooops! PIC should be all caps! Does anyone know the difference between 16F628-20/P-ND and 16F628-20I/P-ND? One with the 'I', the other one without it. I saw this in Digikey website. I am a little confused because the one with the 'I' is a little more expensive than the other, and I can't seem to find any difference whatsoever in the description of the 2 chips. I have checked microchip website and the spec sheet, and I can't find anything. In the spec sheet, it says that there are 2 types: 16F and 16LF (where the LF version is the one that'll work at lower supply voltage). But I don't think this is it though! Please enlighten me if anyone knows what the 'I' stands for. Thank you very much! Rudy -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics