Pin won't turn off properly
Brian Aase email (remove spam text)
> I too have had timing problems with the Philips 74HC123 parts. The
> Philips part produced a significantly shorter pulse than Fairchild's
> part. We use the part for a long pulse (30 seconds or so) and by
> using much larger capacitors could still only get to about 26 seconds.
IIRC, several manufacturers include a cautionary statement in their
data sheets, to the effect that 74xx123 parts are not sutiable for
delays > 1 second.
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