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:
Oct. 05, 2004
Filed:
May. 28, 2003
Tomohito Kawano, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor memory device includes a data line array connected to a memory cell array, a read circuit configured to charge selected data lines to read data, and a non-selection-side charge circuit configured to charge non-selected data lines. In the data line array, a first group of lower order 8 bit data lines and a second group of higher order 8 bit data lines are alternately disposed one line by one line. The read circuit selects and charges all the 16 bit data lines in a word data read mode, while it selects and charges one of the first and second groups in a byte data read mode. The non-selection-side charge circuit selects and charges non-selected data lines, which belong to the other of the first and second groups not selected by the read circuit in the byte data read mode.