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:
Aug. 05, 2003
Filed:
May. 10, 2002
Applicant:
Inventor:
Katsuyoshi Mitsui, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract
An address generating circuit of a DRAM includes five fuses, a trimming switching circuit generating five signals in accordance with whether or not each fuse is blown, a voltage converting circuit generating a control voltage of a level corresponding to the five signals, a voltage control oscillation circuit generating a clock signal of a cycle according to the control voltage, and an address counter generating an address signal in synchronization with the clock signal. Thus, unlike a conventional example, a plurality of counting circuits and a detection circuit are eliminated, resulting in reduction of power consumption and circuit scale.