Pulse generating circuit and a semiconductor memory device provi

Details Pulse generating circuit and a semiconductor memory device provi Pulse generating circuit and a semiconductor memory device provi

1995-06-02

1997-11-25

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Rectangular or pulse waveform width control

327175, 327512, 327513, 327176, 327362, 365222, 331 57, H03L 102, G11C 1134

Patent

active

056916612

ABSTRACT:
A pulse signal generating circuit includes a ring oscillator and an internal voltage generating circuit. The internal voltage generating circuit generates an internal voltage depending on an operation temperature. The internal voltage is low at a normal temperature, and is high at a high temperature. Each inverter in the ring oscillator is driven by the internal voltage supplied from the internal voltage generating circuit. Thereby, a period of a pulse signal increases at a normal temperature, and decreases at a high temperature.

REFERENCES:
patent: 3725789 (1973-04-01), Mager
patent: 4804929 (1989-02-01), Kato et al.
patent: 4910421 (1990-03-01), Brahmbhatt et al.
patent: 5072197 (1991-12-01), Anderson
patent: 5180995 (1993-01-01), Hayashi et al.
patent: 5499214 (1996-03-01), Mori et al.

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