Tri-state bus driver to support reconfigurable fault tolerant lo

Details Tri-state bus driver to support reconfigurable fault tolerant lo Tri-state bus driver to support reconfigurable fault tolerant lo

1990-09-28

1992-10-27

Harvey, Jack B.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

371 221, G01R 3102

Patent

active

051592738

ABSTRACT:
A three-state driver circuit including a first gating circuit responsive to a first enable signal for selectively gating an input signal to provide a first gated signal at an internal node, a second gating means responsive to a second enable signal and connected to the internal node for selectively gating the first gated signal so as to provide the output of the three-state bus driver, and a testing circuit for detecting or controlling the state of the internal node, and for providing a test output indicative of the inoperability of the first or second gating circuit.

REFERENCES:
patent: 4638246 (1987-01-01), Blank et al.
patent: 4841232 (1989-06-01), Graham et al.

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