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. 27, 2005
Filed:
Oct. 01, 2003
Edward V. Bautista, Jr., Sunnyvale, CA (US);
Ken Cheong Cheah, Penang, MY;
Chi-mun Ho, Seremban, MY;
Edward V. Bautista, Jr., Sunnyvale, CA (US);
Ken Cheong Cheah, Penang, MY;
Chi-Mun Ho, Seremban, MY;
Advanced Micro Devices, Inc., Sunnyvale, CA (US);
Abstract
A memory device and a method for compensating for a load current in the memory device. The memory device includes a plurality of I/O buffers where each I/O buffer includes an I/O write-buffer driver circuit. The I/O write-buffer driver circuit is coupled to a load current compensation circuit. Although each I/O buffer includes an I/O write-buffer circuit, a single load current compensation circuit may be coupled to several I/O write-buffer driver circuits. The load current compensation circuit generates a load compensation current for each I/O buffer circuit that is not being programmed. The load compensation current increases the load current so that a drain-side programming voltage (VPROG) drives a substantially constant load current, wherein the drain-side programming voltage is substantially independent of the number of bits being programmed.