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:
Jan. 07, 2014
Filed:
Apr. 30, 2012
Koichi Fukuda, Yokohama, JP;
Koichi Fukuda, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A nonvolatile semiconductor memory includes a first power supply voltage pad to which a first power supply voltage required for a writing, reading or erasing operation of the memory cells is applied. The nonvolatile semiconductor memory includes a second power supply voltage pad to which a second power supply voltage that is lower than the first power supply voltage and to be supplied to the I/O circuit is applied. The nonvolatile semiconductor memory includes a first voltage down-converting circuit that converts the first power supply voltage down to a first down-converted voltage that is higher than the second power supply voltage. The nonvolatile semiconductor memory includes a second voltage down-converting circuit that converts the second power supply voltage down to a second down-converted voltage that is lower than the first down-converted voltage.