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:
Jun. 30, 2020

Filed:

Nov. 07, 2018
Applicant:

Realtek Semiconductor Corporation, Hsinchu, TW;

Inventors:

Kuo-Wei Chi, Hsinchu, TW;

Chun-Chi Yu, Hsinchu County, TW;

Chih-Wei Chang, Hsinchu County, TW;

Gerchih Chou, San Jose, CA (US);

Shih-Chang Chen, Miaoli County, TW;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 13/16 (2006.01); G11C 7/22 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 13/1689 (2013.01); G06F 3/0604 (2013.01); G06F 3/0656 (2013.01); G06F 3/0659 (2013.01); G06F 3/0673 (2013.01); G11C 7/222 (2013.01); G11C 7/225 (2013.01);
Abstract

Disclosed is a DDR SDRAM physical layer interface circuit including: a multiphase clock generator generating a plurality of clocks including a reference clock, a first clock, a second clock and a third clock; a frequency dividing circuit generating a PHY clock according to the first clock; a clock output path outputting the reference clock to a storage circuit; a first output circuit outputting a first output signal to the storage circuit according to a first input signal of a memory controller, the first clock and the PHY clock; a second output circuit outputting a second output signal to the storage circuit according to a second input signal of the memory controller, the second clock and the PHY clock; and a third output circuit outputting a third output signal to the storage circuit according to a third input signal of the memory controller, the third clock and the PHY clock.


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