Word line voltage boosting circuit and method thereof

Details Word line voltage boosting circuit and method thereof Word line voltage boosting circuit and method thereof

1996-03-29

1997-09-30

Nelms, David C.

Static information storage and retrieval

Read/write circuit

Including level shift or pull-up circuit

365203, 36523006, 365226, G11C 700, G11C 800

Patent

active

056732252

ABSTRACT:
A word line voltage boosting circuit varies a word line output voltage according to variation of the number of the word lines to be activated. A boosting circuit boosts a word line voltage which has been precharged to a first level voltage to a second level voltage in response to an activation signal. A voltage adding circuit further boosts the word line voltage to a third voltage level by adding a predetermined voltage to the second level voltage if the number of the word lines to be activated increases. A driving circuit includes a bootstrap circuit for stably providing the boosted word line voltage to an output line.

REFERENCES:
patent: 4896297 (1990-01-01), Miyatake et al.
patent: 5184035 (1993-02-01), Sugibayashi
patent: 5246333 (1993-09-01), Maeda
patent: 5255224 (1993-10-01), Galbi et al.
patent: 5287325 (1994-02-01), Morita
patent: 5550775 (1996-08-01), Abe et al.

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