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:
Mar. 18, 2003
Filed:
Feb. 08, 2000
Applicant:
Inventor:
Takanori Ozawa, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 2/900 ;
U.S. Cl.
CPC ...
G11C 2/900 ;
Abstract
A nonvolatile semiconductor memory which includes a voltage supply terminal, a multiplicity of memory cells, a voltage selection circuit, and a voltage dropping circuit. The terminal receives a supply voltage from an external voltage source. The voltage selection circuit is coupled to the terminal for selectively outputting a first and a second voltage to be supplied to the memory cells. The voltage dropping circuit is coupled between the voltage selection circuit and the memory cells for dropping the second voltage output from the voltage selection circuit before it is input to the memory cells.