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:
May. 29, 2012
Filed:
Mar. 04, 2009
Kazuto Uehara, Sagamihara, JP;
Toshifumi Watanabe, Yokohama, JP;
Shigefumi Ishiguro, Chigasaki, JP;
Kazuyoshi Muraoka, Yokohama, JP;
Kazuto Uehara, Sagamihara, JP;
Toshifumi Watanabe, Yokohama, JP;
Shigefumi Ishiguro, Chigasaki, JP;
Kazuyoshi Muraoka, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor memory device configured to perform a clock synchronous burst read operation includes a plurality of buffer memories having different bank structures, and first and second data latch circuits storing read data read from the plurality of buffer memories. The semiconductor memory device further includes a control circuit that controls a timing of starting counting up addresses and a timing of storing read data in the first data latch circuit at the time of the clock synchronous burst read operation in accordance with the bank structure of the buffer memory as a read operation target.