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:
Jul. 16, 1996
Filed:
Sep. 07, 1994
Applicant:
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36518902 ; 365201 ; 36523002 ;
Abstract
In a general read out operation, data read out from a memory cell array is amplified by a preamplifier group. The amplified data is provided to a selector unit. The selector unit responds to a bit organization select signal to select data according to a predetermined bit configuration. The selected data is provided to a data bus. In a test mode, the selector unit responds to a test mode signal to provide a test result to a data bus corresponding to a predetermined bit organization. Therefore, only the required data bus is used according to the bit organization and the test mode.