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. 02, 2008
Filed:
Nov. 09, 2006
Hi-choon Lee, Gyeonggi-do, KR;
Wol-jin Lee, Seoul, KR;
Hi-Choon Lee, Gyeonggi-do, KR;
Wol-Jin Lee, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, Gyeonggi-do, KR;
Abstract
A semiconductor memory device includes first and second global data line pairs connected to a local data line pair, allowing a reduced pre-charge voltage that lowers current consumption and increases operating speed. Also included are a sense amplifier for amplifying data of the second global data line pair and outputting the amplified data to a data line, and a write driver for outputting data of the data line to the first global data line pair during a write operation. Switching circuits are connected between the first and second global data line pairs, and the local data line and the first global data line pairs. The memory device further includes a first global data line pre-charge circuit for pre-charging the first global data line pair to a first voltage level, and a second global data line pre-charge circuit for pre-charging the second global data line pair to a second voltage level.