公开(公告)号：US20140270785A1

公开(公告)日：2014-09-18

申请号：US14193728

申请日：2014-02-28

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jeong-kyoum KIM ,  Jung-hwan CHOI ,  In-dal SONG

IPC: H04B10/2575

CPC classification number: H04B10/2575 ,  H04B10/801

Abstract: An electro-photonic memory system includes a semiconductor memory device for storing data by receiving a first electrical signal, a memory controller for generating a second electrical signal to control the semiconductor memory device, an electrical-to-optical converter for receiving the second electrical signal from the memory controller and converting the second electrical signal into an optical signal, the electrical-to-optical converter separate from the memory controller, and an optical-to-electrical converter for receiving the optical signal from the electrical-to-optical converter and converting the optical signal into the first electrical signal.

Abstract translation: 电光存储器系统包括：通过接收第一电信号来存储数据的半导体存储器件;用于产生第二电信号以控制半导体存储器件的存储器控​​制器;用于接收第二电信号的电 - 光转换器 从存储器控制器并将第二电信号转换为光信号，电 - 光转换器与存储器控制器分离，以及光 - 电转换器，用于从电 - 光转换器接收光信号，以及 将光信号转换成第一电信号。

公开(公告)号：US20170162238A1

公开(公告)日：2017-06-08

申请号：US15295571

申请日：2016-10-17

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunui LEE ,  Won-joo YUN ,  Hye-seung YU ,  In-dal SONG

IPC: G11C7/12 ,  G06F3/06 ,  G11C29/12 ,  G11C7/22 ,  G11C8/14 ,  G11C8/08

CPC classification number: G11C7/12 ,  G06F3/0608 ,  G06F3/0652 ,  G06F3/0656 ,  G06F3/0673 ,  G06F13/4086 ,  G11C7/02 ,  G11C7/1057 ,  G11C7/1084 ,  G11C7/22 ,  G11C8/08 ,  G11C8/14 ,  G11C29/021 ,  G11C29/022 ,  G11C29/028 ,  G11C29/12 ,  G11C29/12005 ,  G11C29/1201 ,  G11C29/56012 ,  G11C2029/5602 ,  G11C2207/105

Abstract: Provided is a memory device configured to perform a calibration operation without having a ZQ pin. The memory device includes a calibration circuit configured to generate a pull-up calibration code and a pull-down calibration code which termination of a data input/output pad for impedance matching in the data input/output pad is controlled. The calibration circuit performs a first calibration operation for trimming first and second reference resistors based on an external resistor to be connected to a pad, and a second calibration operation for generating the pull-up calibration code and the pull-down calibration code based on the trimmed second reference resistor.