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> Hello Pic-Listers,
>
>   Just now something strange happened to me, or rather to both 16C74A Pic's
> I've got here.  Before today they worked fine.  Programmed & erased them
> some
> times (about 2-3 times a day for 3 months, nothing special I think).  But

I read somewhere (but I cannot remember where) that the UV erasable 74A's
were only guaranteed to work for around 100 erasures.  I may be mis-
remembering, but if I am not, that may be the problem as you are definitely
approaching that limit.

Jason

PS  In the same place, I remember reading that the electrically programmed
84's could be programmed like 10000 times.  Neat-o.