WO2005004165B1 - 半導体記憶装置、および半導体記憶装置の読み出し方法 - Google Patents
半導体記憶装置、および半導体記憶装置の読み出し方法Info
- Publication number
- WO2005004165B1 WO2005004165B1 PCT/JP2004/009885 JP2004009885W WO2005004165B1 WO 2005004165 B1 WO2005004165 B1 WO 2005004165B1 JP 2004009885 W JP2004009885 W JP 2004009885W WO 2005004165 B1 WO2005004165 B1 WO 2005004165B1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- circuit
- data holding
- holding circuit
- data
- line
- Prior art date
Links
Classifications
-
- 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
- G11C11/41—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 static cells with positive feedback, i.e. cells not needing refreshing or charge regeneration, e.g. bistable multivibrator or Schmitt trigger
- G11C11/413—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing, timing or power reduction
- G11C11/414—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing, timing or power reduction for memory cells of the bipolar type
- G11C11/416—Read-write [R-W] circuits
-
- 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
- G11C11/41—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 static cells with positive feedback, i.e. cells not needing refreshing or charge regeneration, e.g. bistable multivibrator or Schmitt trigger
- G11C11/413—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing, timing or power reduction
- G11C11/417—Auxiliary circuits, e.g. for addressing, decoding, driving, writing, sensing, timing or power reduction for memory cells of the field-effect type
- G11C11/419—Read-write [R-W] circuits
Abstract
Claims
Statement
条約 Ί 9条に基づく説明書 請求の範囲第 1項は、 比較回路と駆動回路を備え、 比較回路で第 2データ保持 回路の出力レベルを検出し、 この検出結果と閾値とを比較してタイミング信号を 発生し、 タイミングに応じて駆動回路で制御ラインを不活性化し、 第 2データ保 持回路のバイァスを所定レベルにプリチャージすることを明確にした。
引用例は、 プリチャージ回路を開示しているが、 第 2データの保持回路のレべ ルを検出し、 タイミング信号を発生する比較回路とこの比較回路のタイミング信 号に応じて制御ラインと第 2データの保持回路を駆動する駆動回路を開示してい ない。
本発明は、 第 2のデータ保持回路のビット線のプリチャージ開始時間が、 第 1 データ保持回路のビット線のプリチヤ一ジ開始時間より早くすることができ、 読 み出しのサイクル時間を第 2のデータ保持回路のビット線プリチャージに依存す ることなく短縮できるという効果を得たものである。
請求の範囲第 5項は、 第 2比較回路と第 2駆動回路を備え、 第 2比較回路で第 2データ保持回路の出力レベルを検出し、 この検出結果と閾値とを比較してタイ ミング信号を発生し、 タイミングに応じて第 2駆動回路で制御ラインを不活性化 し、 第 2データ保持回路のバイアスを所定レベルにプリチャージすることを明確 にした。
引用例は、 プリチャージ回路を開示しているが、 第 2データの保持回路のレべ ルを検出し、 タイミング信号を発生する第 2比較回路とこの第 2比較回路のタィ ミング信号に応じて制御ラインと第 2データの保持回路を駆動する第 2駆動回路 を開示していない。
本発明は、 第 2のデータ保持回路のビット線のプリチャージ開始時間が、 第 1 データ保持回路のビット線のプリチャージ開始時間より早くすることができ、 読 み出しのサイクル時間を第 2のデータ保持回路のビット線プリチャージに依存す
33 ることなく短縮できる.という効果を得たものである
34
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020057025481A KR101054801B1 (ko) | 2003-07-04 | 2004-07-05 | 반도체기억장치 및 반도체기억장치의 독출방법 |
US10/561,965 US7376028B2 (en) | 2003-07-04 | 2004-07-05 | Semiconductor memory device and method for reading semiconductor memory device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003192396A JP2005025896A (ja) | 2003-07-04 | 2003-07-04 | 半導体記憶装置、および半導体記憶装置の読み出し方法 |
JP2003-192396 | 2003-07-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005004165A1 WO2005004165A1 (ja) | 2005-01-13 |
WO2005004165B1 true WO2005004165B1 (ja) | 2005-03-17 |
Family
ID=33562401
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/009885 WO2005004165A1 (ja) | 2003-07-04 | 2004-07-05 | 半導体記憶装置、および半導体記憶装置の読み出し方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7376028B2 (ja) |
JP (1) | JP2005025896A (ja) |
KR (1) | KR101054801B1 (ja) |
CN (1) | CN100585736C (ja) |
TW (1) | TWI248615B (ja) |
WO (1) | WO2005004165A1 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4832004B2 (ja) * | 2005-06-09 | 2011-12-07 | パナソニック株式会社 | 半導体記憶装置 |
JP4952137B2 (ja) | 2006-08-17 | 2012-06-13 | 富士通セミコンダクター株式会社 | 半導体メモリおよびシステム |
CN101617371B (zh) | 2007-02-16 | 2014-03-26 | 莫塞德技术公司 | 具有多个外部电源的非易失性半导体存储器 |
US8885392B1 (en) * | 2009-02-27 | 2014-11-11 | Altera Corporation | RAM/ROM memory circuit |
US9030884B2 (en) * | 2011-04-06 | 2015-05-12 | Micron Technology, Inc. | Method and apparatus for pre-charging data lines in a memory cell array |
US8934308B2 (en) | 2011-10-14 | 2015-01-13 | Taiwan Semiconductor Manufacturing Company, Ltd. | Tracking bit cell |
JP2017174484A (ja) * | 2016-03-25 | 2017-09-28 | ルネサスエレクトロニクス株式会社 | 半導体記憶装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2838425B2 (ja) * | 1990-01-08 | 1998-12-16 | 三菱電機株式会社 | 半導体記憶装置 |
JPH06349280A (ja) | 1993-06-11 | 1994-12-22 | Matsushita Electric Ind Co Ltd | 半導体記憶装置 |
JPH09128958A (ja) * | 1995-11-01 | 1997-05-16 | Sony Corp | 半導体メモリ装置 |
JP4039532B2 (ja) * | 1997-10-02 | 2008-01-30 | 株式会社ルネサステクノロジ | 半導体集積回路装置 |
US5999482A (en) | 1997-10-24 | 1999-12-07 | Artisan Components, Inc. | High speed memory self-timing circuitry and methods for implementing the same |
US6212117B1 (en) | 2000-06-07 | 2001-04-03 | Hitachi Ltd. | Duplicate bitline self-time technique for reliable memory operation |
US7242609B2 (en) * | 2005-09-01 | 2007-07-10 | Sony Computer Entertainment Inc. | Methods and apparatus for low power SRAM |
-
2003
- 2003-07-04 JP JP2003192396A patent/JP2005025896A/ja active Pending
-
2004
- 2004-07-02 TW TW093120085A patent/TWI248615B/zh not_active IP Right Cessation
- 2004-07-05 WO PCT/JP2004/009885 patent/WO2005004165A1/ja active Application Filing
- 2004-07-05 CN CN200480025383A patent/CN100585736C/zh not_active Expired - Fee Related
- 2004-07-05 KR KR1020057025481A patent/KR101054801B1/ko not_active IP Right Cessation
- 2004-07-05 US US10/561,965 patent/US7376028B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2005025896A (ja) | 2005-01-27 |
CN100585736C (zh) | 2010-01-27 |
WO2005004165A1 (ja) | 2005-01-13 |
KR101054801B1 (ko) | 2011-08-05 |
US7376028B2 (en) | 2008-05-20 |
KR20060028707A (ko) | 2006-03-31 |
TWI248615B (en) | 2006-02-01 |
US20070109895A1 (en) | 2007-05-17 |
CN1846277A (zh) | 2006-10-11 |
TW200525544A (en) | 2005-08-01 |
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