Semiconductor storage device

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United States of America Patent

PATENT NO 10628302
APP PUB NO 20190213121A1
SERIAL NO

16180013

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A semiconductor memory device preventing inconsistent busy states between a plurality of memory chips is provided. A semiconductor memory device includes a master chip and at least one slave chip. The master chip and the slave chip include a status register capable of storing protection information. When a write-protect (WP) commend for locking the protection information of the status register is input, the protection information and lock information are programmed in a memory array. At this time, programming is controlled in a manner that a programming time in a selected memory chip is longer than a programming time in an unselected memory chip.

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Patent Owner(s)

  • WINBOND ELECTRONICS CORP.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Yamauchi, Kazuki Kanagawa, JP 50 273

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