When the 'A' series PICs started to come through, then they along with the 18F series got a lot of bad press. So much so, that rather than risk wasting precious time with possible problems, I delayed their introduction. Since then, the Purchasing Department forced my hand because they argued that the 16F876A series (and others) were much cheaper than the original non-A. As stocks ran out of the older parts I switched across... and guess what?.... Nothing! Zippo. No rejects, no returns, no feedback... they go out the door and it's like they've fallen into a Black Hole and are never seen or heard from again.
The only major problems I've ever encounterd across the last four years were with a particular brand of op-amp in a voltage doubler circuit...
http://www.picbasic.co.uk/forum/showthread.php?t=245
After a lot of investigation, I discovered the failure was always with National Semiconductor as the manufacturer, and checking deeper discovered that the internal schematic of their part was flawed. Banned the use of Nat Semi and use TI or ST instead - no more problems.
Originally Posted by mister_e
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