-I don't advocate buying 16F84 new; I do advocate using 'em if you
-already have 'em and they serve your purpose. The very idea of
-abandoning a part *only* because something else has come along - a
-philosophy which we have encountered in this NG all too often - strikes
-me as wasteful and silly. This from someone who is typing it on a 1997
-vintage Slot 3 Pentium PC that he bought for $25 to replace the inop.
-Cyrix MII motherboard of a 1998 vintage PC which he rescued from trash
-pickup two years ago. :-)
I feel what you are saying to a point. But when it comes to PIC development, whaqt's on chip impact significantly what you can do with it, and how much time and trouble it'll take to make it happen. Like I said before, for simple tasks the part is fine. But most intermedate type projects that people tackle will have between 2 and 5 elements that the 16F84 lacks and the newer chips carry. And so you end up having to write software for the 16F84 to handle what chips like the 16F88 have in hardware.
Also Microchip will happily send most anyone free samples, so there really isn't a out of pocket expense to switch.