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.

Date of Patent:
Jan. 10, 2017

Filed:

Mar. 03, 2014
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventor:

Hiroyuki Nagashima, Kanagawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 16/28 (2006.01); G11C 16/26 (2006.01); G06F 11/08 (2006.01); G11C 16/04 (2006.01); G11C 29/42 (2006.01); G11C 29/52 (2006.01); G11C 29/04 (2006.01);
U.S. Cl.
CPC ...
G11C 16/26 (2013.01); G06F 11/08 (2013.01); G11C 16/0483 (2013.01); G11C 29/42 (2013.01); G11C 29/52 (2013.01); G11C 16/28 (2013.01); G11C 2029/0411 (2013.01);
Abstract

A memory chip includes a memory cell array having a plurality of memory cells connected to word lines and bit lines, and a sense amplifier configured to detect data stored in a memory cell that is connected to a selected one of the word lines and a selected one of the bit lines, and a control circuit configured to read data from the memory cell in a first read mode when a first command is received and in a second read mode when a second command is received. A peak or an average value of an operation current that is flowing between power supply and ground terminals of the memory chip during a read operation in the first read mode is less than a peak or an average value of the operation current during a read operation in the second read mode.


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