公开(公告)号：US20190080730A1

公开(公告)日：2019-03-14

申请号：US15962206

申请日：2018-04-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Chulseung LEE ,  ChoongEui LEE ,  Soon Suk HWANG ,  Kyuwook HAN

IPC: G11C7/10 ,  G11C7/22 ,  G11C8/18 ,  G11C29/02 ,  G06F13/16

Abstract: Disclosed is a storage device. The storage device includes a nonvolatile memory device that receives write data based on a data strobe signal and a data signal and outputs read data based on the data strobe signal and the data signal, and a controller that performs a training operation for training the nonvolatile memory device to align the data signal and the data strobe signal. The controller detects a left edge of a window of the data signal for the training operation. The controller determines a center of the window by using the detected left edge and unit interval length information of the data signal or determines a start point of a detection operation for detecting a right edge of the window by using the detected left edge and the unit interval length information.