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. 30, 1999
Filed:
Jul. 10, 1997
Applicant:
Inventors:
Tsiu Chiu Chan, Carrollton, TX (US);
Lawrence P Eng, Dallas, TX (US);
Assignee:
STMicroelectronics, Inc., Carrollton, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365201 ; 365 63 ;
Abstract
A method and circuits for coupling a memory embedded in an integrated circuit to interconnect pads during a memory test mode is disclosed. The integrated circuit contains a processor, an embedded memory and a switching circuit for: (1) temporary coupling the interconnect pads of the integrated circuit, coupled to the processor during normal operation mode of the circuit, to the memory during a memory test mode; (2) and decoupling the external interconnect pads from the memory, after the memory is tested, and coupling them to the processor.