> Similarly, I would say that the idle condition being high on the logic
> side followed the conventions of the time, since that was a lower-power
> state for most of the earlier logic families.
> 
> Therefore, the 1488/1489 were designed to interface between these two
> worlds.

That would be my guess too, but I hope for someone to have solid facts. 
Maybe the piclist audience is too young...


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Wouter van Ooijen

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Van Ooijen Technische Informatica: www.voti.nl
consultancy, development, PICmicro products
docent Hogeschool van Utrecht: www.voti.nl/hvu

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