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. 25, 2012
Filed:
Mar. 16, 2009
Applicant:
Robert DE Gruijl, San Francisco, CA (US);
Inventor:
Robert de Gruijl, San Francisco, CA (US);
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 19/00 (2006.01); H03K 19/0175 (2006.01);
U.S. Cl.
CPC ...
Abstract
Input/Output (I/O) pin circuits, devices, methods and systems are implemented in various fashions. According to one such method, a valid signal level is provided for a pin of an integrated circuit (IC) die. Responsive to a reset signal, a first mode () is entered where one of a pull-up circuit or pull-down circuit is enabled () to set the pin to the valid signal level. A change in signal level of the pin that is a deviation from the valid signal level is detected (). Responsive to detecting the change, a second mode () is entered where the one of a pull-up circuit or pull-down circuit is disabled ().