XOR CMOS logic gate

Details XOR CMOS logic gate XOR CMOS logic gate

1995-05-15

1996-11-19

Westin, Edward P.

Electronic digital logic circuitry

Exclusive function

With field-effect transistor

326 54, H03K 1921

Patent

active

055766374

ABSTRACT:
An exclusive OR circuit includes a first series circuit in which a source of a first pMIS transistor is connected to a positive-voltage power supply line. A drain of the first pMIS transistor is connected to a drain of a first nMIS transistor via a second nMIS transistor. The source of the first nMIS transistor is connected to a low-voltage power supply line via a fourth nMIS transistor. A second series circuit has a drain of a third nMIS transistor connected to a high-voltage power supply line via a second pMIS transistor. The source of the third nMIS transistor is connected to the source of a third pMIS transistor. The drain of the third pMIS transistor is connected to the low-voltage power supply line via a fourth pMIS transistor. The gates of the first and third nMIS transistors and the first and third pMIS transistors are connected to one another and provided with a first input. The gates of the second and fourth nMIS transistors and the second and fourth pMIS transistors are connected to one another and provided with a second input. The sources of the second and third nMIS transistors are connected to each other and provide the exclusive OR of the first and second inputs.

REFERENCES:
patent: 4424460 (1984-01-01), Best
patent: 4453096 (1984-06-01), Le Can et al.
patent: 4541067 (1985-09-01), Whitaker

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