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:
Dec. 20, 2011
Filed:
Jan. 23, 2008
Takahiro Suzuki, Chigasaki, JP;
Shinya Fujisawa, Hachioji, JP;
Tokumasa Hara, Kawasaki, JP;
Masuji Nishiyama, Tokyo, JP;
Takahiro Suzuki, Chigasaki, JP;
Shinya Fujisawa, Hachioji, JP;
Tokumasa Hara, Kawasaki, JP;
Masuji Nishiyama, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor memory device includes a memory cell array, a power source circuit, a sense amplifier, a control circuit, and a processor. The memory cell array includes a nonvolatile memory cell. The power source circuit includes a first register and generates a voltage. The sense amplifier includes a second register, reads from the memory cell and amplifies the read data. The control circuit includes a third register and controls operations of the power source circuit and the sense amplifier. The processor controls the operations of the power source circuit, the sense amplifier and the control circuit by giving an instruction to the first to third registers. The control circuit decodes the instruction received at the third register so as to control the power source circuit and the sense amplifier directly based on a result of decoding.