公开(公告)号：US09940046B2

公开(公告)日：2018-04-10

申请号：US15278078

申请日：2016-09-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chankyung Kim ,  Mijo Kim ,  Yonggyu Chu ,  Seungbum Ko ,  Soo Hwan Kim

IPC: G06F3/06 ,  G11C11/16 ,  G11C11/4093 ,  G11C29/52 ,  G06F11/07

CPC classification number: G06F3/0619 ,  G06F3/0656 ,  G06F3/0659 ,  G06F3/0673 ,  G06F3/0679 ,  G06F11/0727 ,  G06F11/0751 ,  G06F11/079 ,  G06F11/0793 ,  G11C5/147 ,  G11C7/1063 ,  G11C7/1066 ,  G11C7/109 ,  G11C7/1093 ,  G11C7/16 ,  G11C7/20 ,  G11C7/222 ,  G11C11/161 ,  G11C11/1673 ,  G11C11/1693 ,  G11C11/4072 ,  G11C11/4074 ,  G11C11/4076 ,  G11C11/4093 ,  G11C29/52 ,  G11C2029/0409 ,  G11C2029/4402

Abstract: A semiconductor memory device which stores operation environment information such as use time data, operating temperature data, or operating voltage data includes an internal circuit configured to perform a function set in the semiconductor memory device, and an operation environment information storing circuit configured to sense information about an operation environment of the semiconductor memory device when the semiconductor memory device operates, store the operation environment information in non-volatile memory cells, and provide the operation environment information stored in the non-volatile memory cells to an outside based on a request of reading out information.