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:
Sep. 04, 2001
Filed:
Mar. 13, 2000
Colin S. Bill, Cupertino, CA (US);
Edward V. Bautista, Jr., Santa Clara, CA (US);
Santosh K. Yachareni, Santa Clara, CA (US);
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
The present invention discloses methods and systems of wordline voltage protection to supply voltage to a plurality of wordlines in a memory device only during a read mode and a write mode. In the preferred embodiment, at least one wordline voltage protection circuit controls at least one decoder circuit that is activated to transfer voltage from at least one wordline voltage supply circuit to at least one wordline. The wordline voltage protection circuit activates the decoder circuit to transfer voltage to the wordline when the voltage is within a predetermined range and the memory device is performing one of a plurality of functions that include the write mode. The wordline voltage protection circuit also activates the decoder circuit to transfer voltage to the wordline when the memory device is performing one of a plurality of functions that include the read mode.