At 04:13 PM 8/13/97 -0400, Andy Kunz wrote:
>>I've got 8 chips exhibiting this behaviour, and I tried erasing for 20 min.
>>without success.  I'm using relatively old chips, I believe, but even with
>>the code protection, would 20 min. be reasonable?
>If they aren't "A" suffix parts, should be fine.  Try a longer exposure, or
>a new bulb.  How quickly do other chips erase for you?

They're 16C74A and no chips that I have work.  All I have available are
16C74A chips, all of which don't seem to work.  I called Microchip in
Toronto, but they were closed at the time... probably call them tomorrow
and ask what their opinion is.  I think the programmer's fried.

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