Title:
SEMICONDUCTOR STORAGE DEVICE AND METHOD FOR CONTROLLING SEMICONDUCTOR STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/161798
Kind Code:
A1
Abstract:
Disclosed is a semiconductor storage device wherein reading and writing can be simultaneously performed using a bit cell having a small area. Also disclosed is a method for controlling the semiconductor storage device.
The semiconductor storage device has: a plurality of memory blocks respectively having memory cells that store data; a first decoder, which decodes a first address, and specifies a first memory cell included in a first memory block among the memory blocks; a second decoder, which decodes a second address, and specifies a second memory cell included in a second memory block among the memory blocks, said second memory block being different from the first memory block; and a read/write control unit which simultaneously performs reading of data stored in the first memory cell specified by the first decoder, and writing of data to the second memory cell specified by the second decoder.
Inventors:
MORI, Atsushi (1-1 Kamikodanaka 4-chome, Nakahara-ku, Kawasaki-sh, Kanagawa 88, 〒2118588, JP)
Application Number:
JP2010/060763
Publication Date:
December 29, 2011
Filing Date:
June 24, 2010
Export Citation:
Assignee:
FUJITSU LIMITED (1-1 Kamikodanaka 4-chome, Nakahara-ku Kawasaki-sh, Kanagawa 88, 〒2118588, JP)
富士通株式会社 (〒88 神奈川県川崎市中原区上小田中４丁目１番１号 Kanagawa, 〒2118588, JP)
富士通株式会社 (〒88 神奈川県川崎市中原区上小田中４丁目１番１号 Kanagawa, 〒2118588, JP)
International Classes:
G11C11/41; G11C11/413
Attorney, Agent or Firm:
ITOH, Tadahiko (32nd Floor, Yebisu Garden Place Tower 20-3, Ebisu 4-chome, Shibuya-k, Tokyo 32, 〒1506032, JP)
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Claims: