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. 31, 2012
Filed:
May. 20, 2010
Noriaki Mochida, Chuo-ku, JP;
Noriaki Mochida, Chuo-ku, JP;
Elpida Memory, Inc., Tokyo, JP;
Abstract
A semiconductor device includes a plural number of sense amplifiers that sense at least two data in parallel and that operate under a first frequency, and a multiplexer that operates under a second frequency higher than the first frequency and that sequentially serially outputs the data sensed in parallel. The semiconductor device also includes a driver circuit having a latch circuit connected to an output of the multiplexer, and an output driver circuit connected to the latch circuit and operating under the second frequency. The voltage of a power supply of the sense amplifiers is the same as the voltage of a power supply of the output driver circuit. The power supply of the sense amplifiers and the power supply of the output driver circuit are connected to respective different power supply lines.