Jinx wrote:
>>chips.  If I have burned out the analog pins on the 876, then I've
>>hoarked a ~$9 chip
>
>
> It would be worth testing to see if any widespread damage has
> been done. Perhaps it's only the one analogue pin that's NBG and
> the rest of the chip could be quite OK. Just mark it as "abused"

Been there, done that, got fried.

Installed the micro (16C77/JW) backwards in the socket, powered it up.
First thought was, "That's funny, they aren't supposed to glow like a
flashlight" as I reached to shut off power (glowing bond wire).  Tested
chip, it was fine.  Wrote "flashlighted" on the bottom.  Two weeks
later, started getting flakey results on some of the I/O pins.  Spent a
couple days looking for the "bugs" in my code.  Then it hit me.
"Flashlighted" hit the can and I've sworn off of ever trying to save a
couple of dollars on a questionable chip.

Regards,

Dave

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