CMOS output circuit

Details CMOS output circuit CMOS output circuit

1986-08-27

1988-03-22

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307264, 307243, 307585, H03K 501

Patent

active

047331054

ABSTRACT:
A CMOS output circuit including CMOS inverters, is formed on a semiconductor substrate and N MOS switching transistors are provided. The output circuit is responsive to an external control signal for switching a plurality of reference voltages and delivering them as multiple-level drive signals. The CMOS output circuit furthermore includes PMOS switching circuits connected in parallel with each of a plurality of CMOS transfer gates, CMOS inverters, and N MOS switching transistors for preventing a latch-up phenomenon of the CMOS inverters from being produced. The PMOS switching circuits are on-off controlled by a control signal obtained by converting an amplitude level of an external control signal.

REFERENCES:
patent: 3995177 (1976-11-01), Sirocka et al.
patent: 4324991 (1982-04-01), Tamaki

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