公开(公告)号：US20170192721A1

公开(公告)日：2017-07-06

申请号：US15462347

申请日：2017-03-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hoi-ju CHUNG ,  Su-a KIM ,  Mu-jin SEO ,  Hak-soo YU ,  Jae-youn YOUN ,  Hyo-jin CHOI

IPC: G06F3/06 ,  G11C29/52 ,  G06F11/10

CPC classification number: G06F3/0659 ,  G06F3/0604 ,  G06F3/0679 ,  G06F11/073 ,  G06F11/076 ,  G06F11/079 ,  G06F11/0793 ,  G06F11/1008 ,  G06F11/1048 ,  G06F11/1068 ,  G06F11/1076 ,  G11C11/409 ,  G11C29/52 ,  G11C29/783

Abstract: A memory controller includes a controller input/output circuit configured to output a first command to read first data, and output a second command to read an error corrected portion of the first data. A memory device includes: an error detector, a data storage circuit and an error correction circuit. The error detector is configured to detect a number of error bits in data read from a memory cell in response to a first command. The data storage circuit is configured to store the read data if the detected number of error bits is greater than or equal to a first threshold value. The error correction circuit is configured to correct the stored data.