Non-loading output driver circuit

Details Non-loading output driver circuit Non-loading output driver circuit

1989-03-31

1991-04-02

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307451, 307475, 3074821, 307585, 307542, H03K 19003, H03K 19094, H03K 1716, H03K 17687

Patent

active

050049364

ABSTRACT:
An output driver is provided for an IC (14, 16 and 18) to drive a data bus (12) connected thereto. The output driver may include a push-pull configuration comprising both a P and N channel transistor (78 and 80, respectively). A switching network of transistors (86, 88, 90, 92 and 94) is included to prevent loading of the output signal, V.sub.out when the power supply voltage, V.sub.cc is inactive. More particularly, the backgate of P channel transistor (78) is coupled to V.sub.out when V.sub.cc is inactive and coupled to V.sub.cc when V.sub.cc is active.

REFERENCES:
patent: 4628218 (1986-12-01), Nakaizumi
patent: 4785203 (1988-11-01), Nakamura
patent: 4855623 (1989-08-01), Flaherty
patent: 4868422 (1989-09-01), Daniele et al.
patent: 4877980 (1989-10-01), Kubinec
patent: 4880997 (1989-11-01), Steele
patent: 4883976 (1989-11-01), Deane
patent: 4894560 (1990-01-01), Chung

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