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. 30, 2014
Filed:
Oct. 21, 2011
Hiromasa Takeda, Tokyo, JP;
Hiroki Fujisawa, Tokyo, JP;
Hiromasa Takeda, Tokyo, JP;
Hiroki Fujisawa, Tokyo, JP;
PS4 Luxco S.A.R.L., Luxembourg, LU;
Abstract
A semiconductor chip includes: a data output buffer that outputs a data signal; a first power-supply pad that supplies a first power-supply potential to the data output buffer; a power-supply wiring that is connected to the first power-supply pad; a strobe output buffer that outputs a strobe signal; and a second power-supply pad that supplies a second power-supply potential to the strobe output buffer. The power-supply wiring and the second power-supply pad are electrically independent of each other. Therefore, the power-supply noise associated with the switching of the data output buffer does not spread to the strobe output buffer. Thus, it is possible to improve the quality of the strobe signal.