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:
Apr. 08, 1997
Filed:
Jun. 02, 1995
Yasuhiro Hotta, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A semiconductor memory device of the invention includes a memory cell array having a plurality of memory cells, row selector means for selecting a row of the memory cell array corresponding to a row address of an input address, and column selector for selecting a plurality of columns of a memory cell array corresponding to a column address of an input address, and also selecting a plurality of columns of a memory cell array corresponding to at least one column address other than a column address of an input address. The device also includes a sense amplifier for sensing data stored in memory cells. The sense amplifier has at least two sense amplifier groups, the sense amplifier groups sensing data read from a plurality of memory cells corresponding to an input address, and data read from a plurality of memory cells corresponding to the row address of an input address and at least one other column address. The device has a page mode for rapidly switching and outputting data from a plurality of memory cells which have been read in parallel to sense amplifier in accordance with an input address.