This got me curious .... there are a number of differences Two of the PORTA pins can be redeployed as comparators The flash endurance spec is a lot better The EEPROM specifies a typical endurance, minimum is the same Slight voltage differences It's interesting that the EEPROM didn't change. On the 16F84A the flash was also improved dramatically over the 16F84, but at a great cost in the EEPROM endurance. Also interesting that they don't provide a commercial version of the 877A. I guess they figured the price of the industrial spec was low enough they didn't need it. It's about two bucks cheaper than the commercial 877 plain. 72/73 de WB8RCR http://www.qsl.net/wb8rcr didileydadidah QRP-L #1446 Code Warriors #35 ----- Original Message ----- From: "William Bross" To: Sent: Tuesday, February 10, 2004 10:18 AM Subject: Re: [PIC:] !6F877A - I/P versus PIC16F877-20/P > Yes, there is a difference. The F877A is the newer die shrink version > and it programs differently than the older 877 -20/P. Programming > algorithm is the major difference. Download the data sheets from > Microchip to see if there are other subtle differences. > > Bill > > -----Original Message----- > From: pic microcontroller discussion list > [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Vidal > Sent: Tuesday, February 10, 2004 10:06 AM > To: PICLIST@MITVMA.MIT.EDU > Subject: [PIC:] !6F877A - I/P versus PIC16F877-20/P > > > I have bought two 16F877 from two different sources. Is there > a difference between the two? > > Label 1reads - 16F877A - I/P the other PIC16F877-20/P. > > I was supposed to have 16F877A 20 Mhz. > > Regards > > Vidal > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu > > -- > http://www.piclist.com hint: To leave the PICList > mailto:piclist-unsubscribe-request@mitvma.mit.edu > -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu