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:
Feb. 20, 2018
Filed:
Jul. 29, 2016
Applicant:
Freescale Semiconductor, Inc., Austin, TX (US);
Inventor:
Jianan Yang, Austin, TX (US);
Assignee:
NXP USA, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/02 (2006.01); G11C 7/22 (2006.01); G11C 7/06 (2006.01); G11C 7/14 (2006.01); G11C 7/12 (2006.01); G11C 7/10 (2006.01);
U.S. Cl.
CPC ...
G11C 7/222 (2013.01); G11C 7/065 (2013.01); G11C 7/10 (2013.01); G11C 7/12 (2013.01); G11C 7/14 (2013.01);
Abstract
Apparatus and methods for operating a read-only memory (ROM) are disclosed. The method for operating the ROM includes sensing a dummy bit line with a dummy sense amplifier coupled to the dummy bit line to generate a keeper adjust signal. Based on the keeper adjust signal, a keeper strength of a keeper circuit coupled to a sense amplifier circuit is adjusted. The sense amplifier circuit is capable of sensing data stored in the ROM.