Wired logic circuit for use in gate array integrated circuit

Details Wired logic circuit for use in gate array integrated circuit Wired logic circuit for use in gate array integrated circuit

1990-11-28

1991-12-31

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307466, 307467, 307356, 307357, H03K 19177

Patent

active

050774930

ABSTRACT:
A gate array integrated circuit includes four internal logic circuits each composed of a current mode logic circuit and an emitter follower circuit having an input connected to an output of the current mode logic circuit. One wired logic circuit is formed by interconnecting output terminals of four emitter follower circuits. An one end of an interconnection wiring conductor for interconnecting the output terminals of the four emitter follower circuits is connected to an output terminal of a first emitter follower circuit, and the other end of the interconnection wiring conductor is connected to an output terminal of fourth emitter follower circuit of the N emitter follower circuits. The interconnection wiring conductor serially extends and traces all the output terminals of the four emitter follower circuits from the output terminal of the first emitter follower circuit to the output terminal of the fourth emitter follower circuit without branch, so that the output terminals of the second and third emitter follower circuits are connected to an intermediate portion of the interconnection wiring conductor in the order. A pair of resistors or constant current sources having the same value are connected to only the output terminals of the first and fourth emitter follower circuits, respectively.

REFERENCES:
patent: 3648061 (1972-03-01), Black et al.
patent: 4311926 (1982-01-01), Patel et al.
patent: 4999520 (1991-03-01), Usami et al.

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