Tri-state output circuit for semiconductor device

Details Tri-state output circuit for semiconductor device Tri-state output circuit for semiconductor device

1997-01-28

1999-03-16

Tokar, Michael

Electronic digital logic circuitry

Tri-state

With field-effect transistor

326 83, H03K 1716

Patent

active

058835270

ABSTRACT:
An output circuit for a semiconductor device that offers improved reliability of data transfer over long distance as well as low consumption. In one embodiment, an output circuit according to the invention includes: an output circuit section having a pair of output terminals for outputting complementary output signals in response to an input signal received by the output circuit section, and a switch circuit connected between the pair of output terminals of the output circuit section. The output circuit section sets the pair of output terminals in a high-impedance state in response to a high-impedance setting signal received by the output circuit section. The switch circuit causes electric coupling between the pair of output terminals in response to the high-impedance setting signal.

REFERENCES:
patent: 4885480 (1989-12-01), Faris et al.
patent: 5051625 (1991-09-01), Ikeda et al.
patent: 5506522 (1996-04-01), Lee
patent: 5565796 (1996-10-01), Nakase
patent: 5773999 (1998-06-01), Park et al.

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