Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1992-08-17
1994-03-15
Westin, Edward P.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307475, H03K 19003
Patent
active
052948455
ABSTRACT:
A data processor has at least one output terminal which a user of the data processor can vary the output impedance thereof depending upon the application environment of the data processor. A first output buffer of an output buffer stage has a predetermined output impedance and is coupled between an input of the stage and the output terminal. The first output buffer provides a first output terminal impedance. A second output buffer having a lower output impedance than the first output buffer may be selectively coupled in parallel to the first output buffer to reduce the output impedance of the output terminal. The coupling of the output buffers is controlled by a user of the data processor who provides a control input for selecting one of a plurality of predetermined output terminal impedance values.
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Gallup Michael G.
Gay James G.
Ledbetter, Jr. William B.
McMahan Steven C.
Scheuer Kenneth C.
Driscoll Benjamin D.
King Robert L.
Meyer Jonathan P.
Motorola Inc.
Westin Edward P.
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