JP2004021916A - データバス - Google Patents

データバス Download PDF

Info

Publication number
JP2004021916A
JP2004021916A JP2002179969A JP2002179969A JP2004021916A JP 2004021916 A JP2004021916 A JP 2004021916A JP 2002179969 A JP2002179969 A JP 2002179969A JP 2002179969 A JP2002179969 A JP 2002179969A JP 2004021916 A JP2004021916 A JP 2004021916A
Authority
JP
Japan
Prior art keywords
data
impedance
terminating
signal
variable resistor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002179969A
Other languages
English (en)
Japanese (ja)
Other versions
JP2004021916A5 (enExample
Inventor
Narihito Yamagata
山形 整人
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renesas Technology Corp
Original Assignee
Renesas Technology Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renesas Technology Corp filed Critical Renesas Technology Corp
Priority to JP2002179969A priority Critical patent/JP2004021916A/ja
Priority to US10/299,712 priority patent/US6844754B2/en
Publication of JP2004021916A publication Critical patent/JP2004021916A/ja
Publication of JP2004021916A5 publication Critical patent/JP2004021916A5/ja
Pending legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C7/00Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/10Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers

Landscapes

  • Dram (AREA)
  • Logic Circuits (AREA)
  • Memory System (AREA)
JP2002179969A 2002-06-20 2002-06-20 データバス Pending JP2004021916A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2002179969A JP2004021916A (ja) 2002-06-20 2002-06-20 データバス
US10/299,712 US6844754B2 (en) 2002-06-20 2002-11-20 Data bus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002179969A JP2004021916A (ja) 2002-06-20 2002-06-20 データバス

Publications (2)

Publication Number Publication Date
JP2004021916A true JP2004021916A (ja) 2004-01-22
JP2004021916A5 JP2004021916A5 (enExample) 2005-10-20

Family

ID=29728235

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002179969A Pending JP2004021916A (ja) 2002-06-20 2002-06-20 データバス

Country Status (2)

Country Link
US (1) US6844754B2 (enExample)
JP (1) JP2004021916A (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100798739B1 (ko) 2006-09-27 2008-01-29 주식회사 하이닉스반도체 반도체메모리소자 및 그의 구동 방법
JP2009540633A (ja) * 2006-06-02 2009-11-19 ラムバス・インコーポレーテッド 段階的オンダイターミネーションを備えた集積回路
JP5752862B1 (ja) * 2014-06-18 2015-07-22 ゼンテルジャパン株式会社 半導体回路装置及び半導体メモリシステム
US9536604B1 (en) 2016-01-06 2017-01-03 International Business Machines Corporation Impedance matching system for DDR memory

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW521187B (en) * 2001-10-05 2003-02-21 Via Tech Inc Signal compensation circuit of bus
US7088170B2 (en) * 2003-06-30 2006-08-08 International Business Machines Corporation Multiplexer and demultiplexer
US20060132577A1 (en) * 2004-12-04 2006-06-22 Hon Hai Precision Industry Co., Ltd. Circuit topology for high-speed printed circuit board
CN1828478A (zh) * 2005-03-05 2006-09-06 鸿富锦精密工业(深圳)有限公司 主板双倍资料速率内存的电源电路
US8060774B2 (en) 2005-06-24 2011-11-15 Google Inc. Memory systems and memory modules
US8111566B1 (en) 2007-11-16 2012-02-07 Google, Inc. Optimal channel design for memory devices for providing a high-speed memory interface
US20080028136A1 (en) 2006-07-31 2008-01-31 Schakel Keith R Method and apparatus for refresh management of memory modules
US9542352B2 (en) * 2006-02-09 2017-01-10 Google Inc. System and method for reducing command scheduling constraints of memory circuits
US8081474B1 (en) 2007-12-18 2011-12-20 Google Inc. Embossed heat spreader
US8335894B1 (en) * 2008-07-25 2012-12-18 Google Inc. Configurable memory system with interface circuit
US8397013B1 (en) 2006-10-05 2013-03-12 Google Inc. Hybrid memory module
US20080126690A1 (en) * 2006-02-09 2008-05-29 Rajan Suresh N Memory module with memory stack
US8244971B2 (en) 2006-07-31 2012-08-14 Google Inc. Memory circuit system and method
US8077535B2 (en) 2006-07-31 2011-12-13 Google Inc. Memory refresh apparatus and method
US8041881B2 (en) 2006-07-31 2011-10-18 Google Inc. Memory device with emulated characteristics
US9507739B2 (en) 2005-06-24 2016-11-29 Google Inc. Configurable memory circuit system and method
US8055833B2 (en) 2006-10-05 2011-11-08 Google Inc. System and method for increasing capacity, performance, and flexibility of flash storage
US8327104B2 (en) 2006-07-31 2012-12-04 Google Inc. Adjusting the timing of signals associated with a memory system
US9171585B2 (en) 2005-06-24 2015-10-27 Google Inc. Configurable memory circuit system and method
US8359187B2 (en) 2005-06-24 2013-01-22 Google Inc. Simulating a different number of memory circuit devices
US8089795B2 (en) 2006-02-09 2012-01-03 Google Inc. Memory module with memory stack and interface with enhanced capabilities
US8386722B1 (en) 2008-06-23 2013-02-26 Google Inc. Stacked DIMM memory interface
US20080082763A1 (en) 2006-10-02 2008-04-03 Metaram, Inc. Apparatus and method for power management of memory circuits by a system or component thereof
US7386656B2 (en) 2006-07-31 2008-06-10 Metaram, Inc. Interface circuit system and method for performing power management operations in conjunction with only a portion of a memory circuit
US10013371B2 (en) 2005-06-24 2018-07-03 Google Llc Configurable memory circuit system and method
US8796830B1 (en) 2006-09-01 2014-08-05 Google Inc. Stackable low-profile lead frame package
US8090897B2 (en) 2006-07-31 2012-01-03 Google Inc. System and method for simulating an aspect of a memory circuit
US8130560B1 (en) 2006-11-13 2012-03-06 Google Inc. Multi-rank partial width memory modules
US8438328B2 (en) 2008-02-21 2013-05-07 Google Inc. Emulation of abstracted DIMMs using abstracted DRAMs
CN100518436C (zh) * 2005-08-05 2009-07-22 鸿富锦精密工业(深圳)有限公司 高速印刷电路板中传输线的布线架构
DE112006002300B4 (de) 2005-09-02 2013-12-19 Google, Inc. Vorrichtung zum Stapeln von DRAMs
US7372293B2 (en) * 2005-12-07 2008-05-13 Intel Corporation Polarity driven dynamic on-die termination
US9632929B2 (en) 2006-02-09 2017-04-25 Google Inc. Translating an address associated with a command communicated between a system and memory circuits
US20070205805A1 (en) * 2006-03-03 2007-09-06 Oliver Kiehl Electrical system including driver that provides a first drive strength and a second drive strength
US7479799B2 (en) * 2006-03-14 2009-01-20 Inphi Corporation Output buffer with switchable output impedance
KR100780949B1 (ko) * 2006-03-21 2007-12-03 삼성전자주식회사 데이터 독출 모드에서 odt 회로의 온/오프 상태를테스트할 수 있는 반도체 메모리 장치 및 odt 회로의상태 테스트 방법
US20070247185A1 (en) * 2006-03-30 2007-10-25 Hideo Oie Memory system with dynamic termination
US20080025136A1 (en) * 2006-07-31 2008-01-31 Metaram, Inc. System and method for storing at least a portion of information received in association with a first operation for use in performing a second operation
US7724589B2 (en) 2006-07-31 2010-05-25 Google Inc. System and method for delaying a signal communicated from a system to at least one of a plurality of memory circuits
US20080162801A1 (en) * 2006-12-29 2008-07-03 Ripan Das Series termination for a low power memory interface
US20080197877A1 (en) * 2007-02-16 2008-08-21 Intel Corporation Per byte lane dynamic on-die termination
US20090091963A1 (en) * 2007-10-04 2009-04-09 Advanced Micro Devices, Inc. Memory device
TW200921595A (en) * 2007-11-14 2009-05-16 Darfon Electronics Corp Multi-lamp backlight apparatus
JP5217520B2 (ja) * 2008-03-06 2013-06-19 株式会社リコー 電子機器
US8041865B2 (en) * 2008-08-04 2011-10-18 Qimonda Ag Bus termination system and method
US7915912B2 (en) * 2008-09-24 2011-03-29 Rambus Inc. Signal lines with internal and external termination
DE202010017690U1 (de) * 2009-06-09 2012-05-29 Google, Inc. Programmierung von Dimm-Abschlusswiderstandswerten
KR20110076481A (ko) * 2009-12-29 2011-07-06 삼성전자주식회사 메모리 모듈 및 이를 포함하는 메모리 시스템
US10380060B2 (en) * 2016-06-17 2019-08-13 Etron Technology, Inc. Low-pincount high-bandwidth memory and memory bus
US10340022B2 (en) * 2017-05-16 2019-07-02 Samsung Electronics Co., Ltd. Nonvolatile memory including on-die-termination circuit and storage device including the nonvolatile memory
KR102471160B1 (ko) * 2017-05-16 2022-11-25 삼성전자주식회사 온-다이-터미네이션 회로를 포함하는 비휘발성 메모리 및 상기 비휘발성 메모리를 포함하는 스토리지 장치
US10528515B2 (en) * 2017-06-27 2020-01-07 Intel Corporation Memory channel driver with echo cancellation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5467455A (en) * 1993-11-03 1995-11-14 Motorola, Inc. Data processing system and method for performing dynamic bus termination
JPH08194034A (ja) 1995-01-19 1996-07-30 Hitachi Ltd 半導体試験装置
EP1050824A3 (en) * 1999-04-22 2004-01-28 Matsushita Electric Industrial Co., Ltd. Bidirectional signal transmission circuit and bus system
JP2001177580A (ja) 1999-12-20 2001-06-29 Sony Corp インピーダンス適合システム
US6356106B1 (en) * 2000-09-12 2002-03-12 Micron Technology, Inc. Active termination in a multidrop memory system
US6690191B2 (en) * 2001-12-21 2004-02-10 Sun Microsystems, Inc. Bi-directional output buffer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009540633A (ja) * 2006-06-02 2009-11-19 ラムバス・インコーポレーテッド 段階的オンダイターミネーションを備えた集積回路
KR100798739B1 (ko) 2006-09-27 2008-01-29 주식회사 하이닉스반도체 반도체메모리소자 및 그의 구동 방법
US7710797B2 (en) 2006-09-27 2010-05-04 Hynix Semiconductors, Inc. Semiconductor memory device and method for driving the same
JP5752862B1 (ja) * 2014-06-18 2015-07-22 ゼンテルジャパン株式会社 半導体回路装置及び半導体メモリシステム
WO2015193992A1 (ja) * 2014-06-18 2015-12-23 ゼンテルジャパン株式会社 半導体回路装置及び半導体メモリシステム
US9536604B1 (en) 2016-01-06 2017-01-03 International Business Machines Corporation Impedance matching system for DDR memory

Also Published As

Publication number Publication date
US20030234664A1 (en) 2003-12-25
US6844754B2 (en) 2005-01-18

Similar Documents

Publication Publication Date Title
JP2004021916A (ja) データバス
US6795906B2 (en) Memory controller, interface device and method using a mode selection signal to support different types of memories
JP3799251B2 (ja) メモリデバイス及びメモリシステム
US6532525B1 (en) Method and apparatus for accessing memory
KR100437454B1 (ko) 소오스 싱크로너스 전송 방식을 이용한 비동기 메모리 및그것을 포함한 시스템
US20070126464A1 (en) Dynamic on-die termination launch latency reduction
KR20080018135A (ko) 메모리 클록 신호를 전송하는 방법 및 회로
CN111414324A (zh) 半导体系统
KR20170098718A (ko) 메모리 시스템의 종단 토폴로지와 관련 메모리 모듈 및 제어 방법
JP2009237678A (ja) メモリコントローラデバイス、メモリコントローラデバイスの制御方法およびデータ受信デバイス
US6502173B1 (en) System for accessing memory and method therefore
US8180990B2 (en) Integrated circuit including a plurality of master circuits transmitting access requests to an external device and integrated circuit system including first and second interated circuits each including a plurality of master circuits transmitting access requests
KR100499416B1 (ko) Ddr sdram 의 데이타 입력 장치
JP2006228194A (ja) 内部メモリデバイス間の直接的データ移動が可能な複合メモリチップおよびデータ移動方法
US7518935B2 (en) Synchronous RAM memory circuit
US7689763B2 (en) Method and system for reducing pin count in an integrated circuit when interfacing to a memory
US20040027870A1 (en) Ic card and ic card system
JP2004334879A (ja) メモリシステム及び方法
JP2003228511A (ja) データ書込方法及びメモリシステム
EP3819778A1 (en) Bus system and method for operating a bus system
JP3942074B2 (ja) データ入出力装置、メモリ・システム、データ入出力回路およびデータ入出力方法
US7583548B2 (en) Semiconductor memory apparatus for allocating different read/write operating time to every bank
JP2008251060A (ja) 半導体記憶装置
EP0926684B1 (en) Synchronisation device for synchronous dynamic random-access memory
US6766403B2 (en) CPU system with high-speed peripheral LSI circuit

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20050614

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050614

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20080304

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20080325

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080519

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20080519

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090414

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20090901