> TTL/HCMOS outputs can only be either 1) totem pole or 2)
> open-collector/open-drain respectively. If it ain't one, it's the other.

Actually totem-pole with tri-state capability could (should?) be counted as
a third kind of output.

Wouter van Ooijen
Van Ooijen Technische Informatica: http://www.voti.nl
Jal compiler for PIC uC's:  http://www.xs4all.nl/~wf/wouter/pic/jal

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