Output circuit for use in a semiconductor integrated circuit

Details Output circuit for use in a semiconductor integrated circuit Output circuit for use in a semiconductor integrated circuit

1995-02-15

1997-08-26

Westin, Edward P.

Electronic digital logic circuitry

Interface

Supply voltage level shifting

326 27, 326 58, 326 86, H03K 190948

Patent

active

056614144

ABSTRACT:
An output circuit comprising an output stage and a control signal generator. The output stage is constituted by a first P-channel MOS transistor and an N-channel MOS transistor. The control signal generator generates a signal for driving the Gates of the MOS transistors, it comprises a NAND gate, a NOR gate NOR1 and an inverter INV1. The first P-channel MOS transistor of the output stage has a source and a back gate which are isolated in terms of potential. A second P-channel MOS transistor is provided, whose source-drain path is connected between the back gate and gate of the first P-channel MOS transistor incorporated in the output stage.

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Allmon et al., "System, Process, and Design Implications of a Reduced Supply Voltage Microprocessor", 1990 IEEE International Solid-State Circuits Conference, Digest of Technical Papers, Feb., 1990, pp. 48, 49, and 263.

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