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:
Aug. 21, 2012
Filed:
Dec. 02, 2010
Daichi Kaku, Yokohama, JP;
Daichi Kaku, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A memory cell array is configured as an arrangement of memory cells. A first voltage generating circuit is configured to, during a write operation on the memory cells, generate and supply to the memory cell array a first voltage from a constant voltage, and to, during a read operation on the memory cells, generate and supply to the memory cell array a second voltage from a power supply voltage. A second voltage generating circuit is configured to generate the constant voltage. A selector circuit is configured to, during the write operation, drive the second voltage generating circuit to supply to the first voltage generating circuit the constant voltage, and to, during the read operation, stop the second voltage generating circuit and supply to the first voltage generating circuit the power supply voltage.