The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 01, 2003
Filed:
Feb. 20, 2002
Applicant:
Inventors:
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 1/604 ; G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 1/604 ; G11C 7/00 ;
Abstract
Memory cells of a storage device are addressed in n-bit word(s). Each of the n-bit word memory cells are partitioned into k (k≧2) groups of n/k bits. The memory cells are sequentially selected in n/k bits. Data of the selected n/k bit memory cells are read by n/k sense amplifiers and serially output from the storage device as readout data. The storage device requires much less chip area for n/k sense amplifiers and reduced peak currents in a read operation.