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. 04, 2010
Filed:
Mar. 31, 2008
Vijay Kumar Srinivasa Raghavan, Colorado Springs, CO (US);
Vijay Kumar Srinivasa Raghavan, Colorado Springs, CO (US);
Cypress Semiconductor Corporation, San Jose, CA (US);
Abstract
A circuit and method for testing address uniqueness of a memory array are disclosed. The circuit includes a plurality of current sinks associated with rows and columns of the memory array. A plurality of word lines of the memory array are coupled to the plurality of current sinks. A current mirror circuit is coupled to the plurality of current sinks and a circuit output node is coupled to the current mirror circuit. The circuit output node is configured to compare a total current from tested word lines of the memory array with a predetermined reference current, and to output a test pass or test fail indication in response to the comparison.