Bicmos TTL output driver circuit

Details Bicmos TTL output driver circuit Bicmos TTL output driver circuit

1989-10-30

1990-12-04

Callahan, Timothy P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307448, 307451, 307475, 307443, H03K 19017, H03K 1902

Patent

active

049756001

ABSTRACT:
An output driver circuit for reducing output terminal ringing in integrated circuits has a plurality of pull-down transistors each having first, second and third terminals. A plurality of voltage setting devices each are connected in series to the second terminal of one of the pull-down transistors. An input is connected to the common third terminals of the plurality of pull-down transistors, and an output pull-up circuit is connected between the output of the circuit and the first terminals of the plurality of pull-down transistors. Multiple output driver circuits, each having an input delayed with respect to the others, can be connected together with a common output.

REFERENCES:
patent: 4324991 (1982-04-01), Tamaki
patent: 4558234 (1985-10-01), Suzuki et al.
patent: 4730132 (1988-03-01), Watanabe et al.

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