JP4394607B2 - 半導体メモリ装置のデータストローブ信号発生回路 - Google Patents
半導体メモリ装置のデータストローブ信号発生回路 Download PDFInfo
- Publication number
- JP4394607B2 JP4394607B2 JP2005134007A JP2005134007A JP4394607B2 JP 4394607 B2 JP4394607 B2 JP 4394607B2 JP 2005134007 A JP2005134007 A JP 2005134007A JP 2005134007 A JP2005134007 A JP 2005134007A JP 4394607 B2 JP4394607 B2 JP 4394607B2
- Authority
- JP
- Japan
- Prior art keywords
- internal clock
- data strobe
- cas latency
- strobe signal
- signal
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/22—Read-write [R-W] timing or clocking circuits; Read-write [R-W] control signal generators or management
- G11C7/222—Clock generating, synchronizing or distributing circuits within memory device
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C11/00—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
- G11C11/21—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
- G11C11/34—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
- G11C11/40—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
- G11C11/401—Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
- G11C11/4063—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing
- G11C11/407—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing or timing for memory cells of the field-effect type
- G11C11/4076—Timing circuits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/22—Read-write [R-W] timing or clocking circuits; Read-write [R-W] control signal generators or management
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C8/00—Arrangements for selecting an address in a digital store
- G11C8/18—Address timing or clocking circuits; Address control signal generation or management, e.g. for row address strobe [RAS] or column address strobe [CAS] signals
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Dram (AREA)
Description
101、201、301、701、801 遅延部
400、900 選択制御部
500、1000 パルス発生部
600 CASレイテンシ組合部
601 第1のCASレイテンシ組合部
602 第2のCASレイテンシ組合部
Claims (9)
- 複数個のCASレイテンシ信号のそれぞれにより制御され内部クロック信号を遅延する複数個の内部クロック遅延部と、
入力データをラッチするためのデータラッチ制御信号、及び前記複数個の内部クロック遅延部の出力の論理演算を行なう選択制御部と、
前記選択制御部の出力を用いて所定のパルスを有するデータストローブ信号を発生するパルス発生部と
を含むことを特徴とする半導体メモリ装置のデータストローブ信号発生回路。 - 前記複数個の内部クロック遅延部は、
前記複数個のCASレイテンシ信号に応じて遅延時間を別にし、各tCKに対応するtDQSS特性をそれぞれ調節することを特徴とする請求項1に記載の半導体メモリ装置のデータストローブ信号発生回路。 - 前記複数個の内部クロック遅延部は、
前記複数個のCASレイテンシ信号のうち一つと前記内部クロック信号の論理演算を行なう論理演算部と、
前記論理演算部の出力を遅延する遅延部と、
前記複数個のCASレイテンシ信号のうち一つにより制御され前記遅延部の出力信号を選択的に出力する転送ゲートと
を備えることを特徴とする請求項1に記載の半導体メモリ装置のデータストローブ信号発生回路。 - 前記選択制御部は、
前記データラッチ制御信号と前記複数個の内部クロック遅延部の出力のNAND演算を行なうNANDゲートを備えることを特徴とする請求項1に記載の半導体メモリ装置のデータストローブ信号発生回路。 - 複数個のCASレイテンシ組合信号によりそれぞれ制御され内部クロック信号を遅延する複数個の内部クロック遅延部と、
入力データをラッチするためのデータラッチ制御信号、及び前記複数個の内部クロック遅延部の出力の論理演算を行なう選択制御部と、
前記選択制御部の出力を用いて所定のパルスを有するデータストローブ信号を発生するパルス発生部と、
複数個のCASレイテンシ信号を組み合わせて前記複数個のCASレイテンシ組合信号を出力する複数個のCASレイテンシ組合部と
を含むことを特徴とする半導体メモリ装置のデータストローブ信号発生回路。 - 前記複数個の内部クロック遅延部は、
前記複数個のCASレイテンシ組合信号に応じて遅延時間を別にし、各tCKに対応するtDQSS特性をそれぞれ調節することを特徴とする請求項5に記載の半導体メモリ装置のデータストローブ信号発生回路。 - 前記複数個のCASレイテンシ組合部は、
前記複数個のCASレイテンシ信号の論理演算を行なう論理演算部を備えることを特徴とする請求項5に記載の半導体メモリ装置のデータストローブ信号発生回路。 - 前記複数個の内部クロック遅延部は、
前記複数個のCASレイテンシ組合信号のうち一つと前記内部クロック信号の論理演算を行なう論理演算部と、
前記論理演算部の出力を遅延する遅延部と、
前記複数個のCASレイテンシ組合信号のうち一つにより制御され前記遅延部の出力信号を選択的に出力する転送ゲートと
を備えることを特徴とする請求項5に記載の半導体メモリ装置のデータストローブ信号発生回路。 - 前記選択制御部は、
前記データラッチ制御信号と前記複数個の内部クロック遅延部の出力のNAND演算を行なうNANDゲートを備えることを特徴とする請求項5に記載の半導体メモリ装置のデータストローブ信号発生回路。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040114106A KR100636930B1 (ko) | 2004-12-28 | 2004-12-28 | 반도체 메모리 장치의 데이터 스트로브신호 발생회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006190433A JP2006190433A (ja) | 2006-07-20 |
JP4394607B2 true JP4394607B2 (ja) | 2010-01-06 |
Family
ID=36611316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005134007A Expired - Fee Related JP4394607B2 (ja) | 2004-12-28 | 2005-05-02 | 半導体メモリ装置のデータストローブ信号発生回路 |
Country Status (3)
Country | Link |
---|---|
US (2) | US7161856B2 (ja) |
JP (1) | JP4394607B2 (ja) |
KR (1) | KR100636930B1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7549092B2 (en) * | 2005-09-29 | 2009-06-16 | Hynix Semiconductor, Inc. | Output controller with test unit |
US7738307B2 (en) * | 2005-09-29 | 2010-06-15 | Hynix Semiconductor, Inc. | Data transmission device in semiconductor memory device |
KR100784905B1 (ko) | 2006-05-04 | 2007-12-11 | 주식회사 하이닉스반도체 | 반도체 메모리의 데이터 입력 장치 및 방법 |
US7948812B2 (en) * | 2006-11-20 | 2011-05-24 | Rambus Inc. | Memory systems and methods for dynamically phase adjusting a write strobe and data to account for receive-clock drift |
WO2008079910A2 (en) * | 2006-12-20 | 2008-07-03 | Rambus Inc. | Strobe acquisition and tracking |
KR100930401B1 (ko) * | 2007-10-09 | 2009-12-08 | 주식회사 하이닉스반도체 | 반도체 메모리 장치 |
KR101898176B1 (ko) * | 2012-05-25 | 2018-09-12 | 에스케이하이닉스 주식회사 | 반도체 메모리 장치의 버퍼 제어회로 |
US9230621B2 (en) | 2013-03-05 | 2016-01-05 | Samsung Electronics Co., Ltd. | Semiconductor memory device with signal reshaping and method of operating the same |
KR101989861B1 (ko) * | 2018-07-30 | 2019-06-17 | 에스케이하이닉스 주식회사 | 반도체 메모리 장치의 버퍼 제어회로 |
US11575385B2 (en) * | 2020-11-06 | 2023-02-07 | U-Blox Ag | Controlling synchronous I/O interface |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100304705B1 (ko) | 1999-03-03 | 2001-10-29 | 윤종용 | 포스티드 카스 레이턴시 기능을 가지는 동기식 반도체 메모리 장치 및 카스 레이턴시 제어 방법 |
US6275441B1 (en) * | 1999-06-11 | 2001-08-14 | G-Link Technology | Data input/output system for multiple data rate memory devices |
JP4113338B2 (ja) * | 2001-04-10 | 2008-07-09 | 富士通株式会社 | 半導体集積回路 |
KR100448702B1 (ko) | 2001-08-01 | 2004-09-16 | 삼성전자주식회사 | 반도체 메모리 장치 및 이 장치의 라이트 레이턴시 제어방법 |
JP2003059298A (ja) * | 2001-08-09 | 2003-02-28 | Mitsubishi Electric Corp | 半導体記憶装置 |
KR100403635B1 (ko) * | 2001-11-06 | 2003-10-30 | 삼성전자주식회사 | 동기식 반도체 메모리 장치의 데이터 입력 회로 및 데이터입력 방법 |
JP2003272382A (ja) * | 2002-03-20 | 2003-09-26 | Mitsubishi Electric Corp | 半導体記憶装置 |
US6909315B2 (en) | 2002-03-20 | 2005-06-21 | International Business Machines Corporation | Data strobe signals (DQS) for high speed dynamic random access memories (DRAMs) |
US6760261B2 (en) | 2002-09-25 | 2004-07-06 | Infineon Technologies Ag | DQS postamble noise suppression by forcing a minimum pulse length |
JP4181847B2 (ja) | 2002-10-25 | 2008-11-19 | エルピーダメモリ株式会社 | タイミング調整回路、半導体装置及びタイミング調整方法 |
KR100468776B1 (ko) | 2002-12-10 | 2005-01-29 | 삼성전자주식회사 | 클락 지터의 영향을 감소시킬 수 있는 동기식 반도체메모리장치 |
KR100522433B1 (ko) | 2003-04-29 | 2005-10-20 | 주식회사 하이닉스반도체 | 도메인 크로싱 회로 |
-
2004
- 2004-12-28 KR KR1020040114106A patent/KR100636930B1/ko active IP Right Grant
-
2005
- 2005-04-27 US US11/115,351 patent/US7161856B2/en active Active
- 2005-05-02 JP JP2005134007A patent/JP4394607B2/ja not_active Expired - Fee Related
-
2006
- 2006-12-01 US US11/606,928 patent/US7230864B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US20060140021A1 (en) | 2006-06-29 |
US20070076493A1 (en) | 2007-04-05 |
KR20060075332A (ko) | 2006-07-04 |
KR100636930B1 (ko) | 2006-10-19 |
US7230864B2 (en) | 2007-06-12 |
US7161856B2 (en) | 2007-01-09 |
JP2006190433A (ja) | 2006-07-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4394607B2 (ja) | 半導体メモリ装置のデータストローブ信号発生回路 | |
KR100702975B1 (ko) | 반도체 장치 | |
KR101040242B1 (ko) | 데이터 스트로브 신호 생성장치 및 이를 이용하는 반도체 메모리 장치 | |
JP2009093778A (ja) | 半導体記憶装置 | |
JP4953273B2 (ja) | 半導体メモリ素子 | |
KR20170098539A (ko) | 데이터 정렬 장치 | |
US7715252B2 (en) | Synchronous semiconductor memory device and method for driving the same | |
JP2005310345A (ja) | Ddrsdramのデータ入力装置及び方法 | |
GB2373905A (en) | Controlling buffers in a semiconductor memory device | |
US7791963B2 (en) | Semiconductor memory device and operation method thereof | |
KR100857443B1 (ko) | 동기식 지연 회로부를 구비한 반도체 메모리 장치 | |
KR100732761B1 (ko) | 반도체 장치 | |
US7492661B2 (en) | Command generating circuit and semiconductor memory device having the same | |
US6301189B1 (en) | Apparatus for generating write control signals applicable to double data rate SDRAM | |
KR20110130883A (ko) | 라이트 레벨라이제이션 스킴을 포함하는 메모리 장치 | |
KR100951657B1 (ko) | 데이터 스트로브 버퍼 회로 및 이를 이용한 데이터 입력버퍼 장치 | |
KR100536598B1 (ko) | 클럭활성화 시점을 선택하는 반도체메모리장치 | |
JP2000339957A (ja) | 半導体記憶装置 | |
US8248863B2 (en) | Data buffer control circuit and semiconductor memory apparatus including the same | |
US7952957B2 (en) | Circuit for generating read and signal and circuit for generating internal clock using the same | |
KR100818709B1 (ko) | 프리앰블 구간 제어회로 | |
KR20070063291A (ko) | 데이터 마스킹 회로 | |
KR20090047967A (ko) | 입출력 센스 앰프 스트로브 신호 생성 회로 | |
KR20100074822A (ko) | 반도체 메모리 장치의 데이터 출력 회로 | |
KR20090059687A (ko) | 반도체 메모리 장치의 컬럼 어드레스 인에이블 신호 생성회로 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20061211 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20090930 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20091006 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20091015 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121023 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20121023 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20131023 Year of fee payment: 4 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |