. "open collector or open drain" . "Open_collector#POD" . "Open collector#MOSFET" . "open-drain outputs" . . "open-drain" . "Open-collector/drain output" . "Open-collector output" . . . "Open-drain output" . . . "open collector" . . "open-collector" . . "open drains" . "Open-Drain" . "Open drain" . "Open collector" . "Open collector" . "open drain" .