Tristate output buffer with high-impedance state responsive to i

Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons

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Details

307363, 307443, 307566, H03K 3013, H03K 19088, H03K 19092

Patent

active

044980221

ABSTRACT:
An output buffer circuit capable of three-output states of high and low levels and a high impedance. The output buffer circuit includes a detector circuit for detecting that a power source voltage for the buffer circuit is particularly high and for turning the output of the buffer circuit to the high impedance state when the high voltage is detected.

REFERENCES:
patent: 4044330 (1977-08-01), Johnson et al.
patent: 4194132 (1980-03-01), Mrazek
patent: 4321489 (1982-03-01), Higuchi et al.
patent: 4339675 (1982-07-01), Ramsey
patent: 4380709 (1983-04-01), Au
patent: 4425517 (1984-01-01), Smith

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