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, 2008
Filed:
Mar. 28, 2005
Junichi Suzuki, Kanagawa, JP;
Junichi Suzuki, Kanagawa, JP;
NEC Electronics Corporation, Kanagawa, JP;
Abstract
A nonvolatile semiconductor memory includes a memory cell array, a control circuit and an address control circuit. In the memory cell array, a plurality of memory cells are arranged in a matrix of rows and columns. The control circuit sets a write/erase mode in response to an erase instruction, and to count the erase instruction. The address control circuit generates a write address from an input address for a write operation based on a count value from the control circuit in the write/erase mode. A write order to the memory cells accessed based on a series of the write addresses in a current write operation is different from a write order to the memory cells accessed based on a series of write addresses in a previous write operation.