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. 24, 2007
Filed:
Feb. 01, 2006
Mariko Iizuka, Yokohama, JP;
Mariko Iizuka, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor memory device includes an interface unit connected to an external circuit, a data memory unit including a write data line, a read-out data line, a data control unit, and a memory block connected to the data control unit, and a read-out latch block connected between a read-out data line and the interface unit. The data control unit outputs data read out of the memory block to the read-out data line with a trailing edge of a clock being used as a trigger. The read-out latch block latches the data with a trailing edge of another clock, which is generated at least one cycle after the trailing edge of the aforementioned clock, being used as a trigger. The interface unit outputs the data to the external circuit with a leading edge of still another clock, which follows the aforementioned another clock, being used as a trigger.