Static information storage and retrieval – Read/write circuit – Including signal clamping
Patent
1997-11-17
1999-07-27
Nelms, David
Static information storage and retrieval
Read/write circuit
Including signal clamping
365196, 36523002, G11C 1604
Patent
active
059301783
ABSTRACT:
A voltage control circuit for maintaining voltage levels on a pair of bitlines at a desirable above ground voltage is disclosed herein. In an exemplary embodiment, a semiconductor storage device includes a plurality of pairs of bitlines; a p-type field effect transistor multiplexer (PMUX) connecting each bitline of the pair to a sense amplifier; and a clamping circuit which prevents voltage levels on the bitlines from dwelling below a predetermined minimum voltage level. A method is also disclosed herein in which voltage levels on a pair of bitlines are maintained at a desirable above ground voltage level by connecting each bitline of a pair to a sense amplifier through a p-type field effect transistor multiplexer (PMUX); and clamping each bitline to prevent the voltage level thereon from dwelling below a predetermined minimum voltage level.
REFERENCES:
patent: 5053997 (1991-10-01), Miyamato et al.
patent: 5091889 (1992-02-01), Hamano et al.
patent: 5093808 (1992-03-01), Foss
patent: 5416371 (1995-05-01), Katayama et al.
patent: 5487044 (1996-01-01), Kawaguchi et al.
patent: 5537359 (1996-07-01), Toda
patent: 5640355 (1997-06-01), Muraoka et al.
patent: 5659512 (1997-08-01), Koyanagi et al.
patent: 5732033 (1998-03-01), Mullarkey et al.
M. Asakura et al., "An Experimental 256-Mb DRAM with Boosted Sense-Ground Scheme", IEEE Journal of Solid-State Circuits, vol. 29, No. 11, Nov. 1994.
T. Ooishi et al., "An Automatic Temperature Compensation of Internal Sense Ground . . . ", IEEE Journal of Solid-State Circuits, vol. 30, No. 4, Apr. 1995.
S. H. Dhong et al., "Low-Power Sensing Scheme with a Limited Bit-line Swing and Bit-Line Multiplexing", IBM Technical Disclosure Bulletin, vol. 34, No. 9, Feb. 1992, pp. 449-450.
Hsu Louis Lu-Chen
Mandelman Jack Allan
Wordeman Matthew Robert
International Business Machines - Corporation
Le Thong
Neff, Esq. Daryl K.
Nelms David
LandOfFree
Bitline voltage stabilization device and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bitline voltage stabilization device and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bitline voltage stabilization device and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-886945