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open-collector device

A Dictionary of Computing | 2004 | 414 words | Copyright

open-collector device A particular implementation of an electronic logic device in which the output of the device is formed by the open-circuit collector termination of the output transistor (see diagram). The device's output is thus active-low and a pull-up resistor is required to establish the active-high state. These devices are used to drive loads with high supply voltages or to implement wired-logic buses.

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JOHN DAINTITH. "open-collector device." A Dictionary of Computing. 2004. Encyclopedia.com. 27 May. 2012 <http://www.encyclopedia.com>.

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