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:
Mar. 17, 2015
Filed:
Aug. 18, 2014
Applicant:
Samsung Electronics Co., Ltd., Suwon-Si, Gyeonggi-Do, KR;
Inventor:
Eonguk Kim, Seoul, KR;
Assignee:
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/00 (2006.01); H03K 3/012 (2006.01); H03K 3/037 (2006.01);
U.S. Cl.
CPC ...
H03K 3/012 (2013.01); H03K 3/0375 (2013.01);
Abstract
An apparatus for controlling retention of data includes a logic circuit, a retention control cell circuit, and an I/O cell circuit. The logic circuit generates at least one retention enable signal before a chip enters a reduced power mode. The retention control cell circuit latches the retention enable signal and outputs a retention enable control signal based on a first power signal of the logic circuit and a detection result of a second power signal for input/output (I/O). And, the I/O cell circuit latches data based on the retention control signal.