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:
May. 21, 1996
Filed:
Feb. 14, 1995
Applicant:
Inventor:
Hoang Nguyen, Fort Collins, CO (US);
Assignees:
AT&T Global Information Solutions Company, Dayton, OH (US);
Hyundai Electronics America, Milpitas, CA (US);
Symbios Logic Inc., Fort Collins, CO (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H01L / ;
U.S. Cl.
CPC ...
327565 ; 327566 ; 327408 ;
Abstract
An input cell for a semiconductor chip having an I/O region proximate the edge of the chip and a core region located inside the I/O region. The input cell is located in the I/O region and includes an input pad for receiving an input signal and a multiplexer. The multiplexer receives an input signal from the pad or a boundary scan signal from the core region and selectively provides one signal or the other to the core region.