KR20080039977A - 별개의 판독-기록 회로를 구비한 sram 셀 - Google Patents
별개의 판독-기록 회로를 구비한 sram 셀 Download PDFInfo
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- KR20080039977A KR20080039977A KR1020087005769A KR20087005769A KR20080039977A KR 20080039977 A KR20080039977 A KR 20080039977A KR 1020087005769 A KR1020087005769 A KR 1020087005769A KR 20087005769 A KR20087005769 A KR 20087005769A KR 20080039977 A KR20080039977 A KR 20080039977A
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- 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
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- 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
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- 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
- G11C11/412—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 using field-effect transistors only
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- 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
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1051—Data output circuits, e.g. read-out amplifiers, data output buffers, data output registers, data output level conversion circuits
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1051—Data output circuits, e.g. read-out amplifiers, data output buffers, data output registers, data output level conversion circuits
- G11C7/1069—I/O lines read out arrangements
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1078—Data input circuits, e.g. write amplifiers, data input buffers, data input registers, data input level conversion circuits
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1078—Data input circuits, e.g. write amplifiers, data input buffers, data input registers, data input level conversion circuits
- G11C7/1096—Write circuits, e.g. I/O line write drivers
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- Static Random-Access Memory (AREA)
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Abstract
Description
Claims (9)
- SRAM 셀 코어에 기록하고 그것으로부터 판독하기 위한 회로로서,전기적 특성을 갖는 적어도 하나의 기록 트랜지스터를 포함하고, 상기 SRAM 셀 코어와 결합된 기록 회로; 및상기 적어도 하나의 기록 트랜지스터의 상기 전기적 특성과 상이한 전기적 특성을 갖는 적어도 하나의 판독 트랜지스터를 포함하고, 상기 SRAM 셀 코어와 결합된 판독 회로를 포함하고,상기 적어도 하나의 기록 트랜지스터 및 상기 적어도 하나의 판독 트랜지스터는 공통 게이트 신호를 가지는 회로.
- 제1항에 있어서,상기 전기적 특성은 최대 구동 전류이고, 상기 적어도 하나의 판독 트랜지스터는 상기 적어도 하나의 기록 트랜지스터보다 큰 최대 구동 전류를 가지는 회로.
- 제1항에 있어서,상기 전기적 특성은 문턱 전압이고, 상기 적어도 하나의 판독 트랜지스터는 상기 적어도 하나의 기록 트랜지스터보다 낮은 문턱 전압을 가지는 회로.
- 제1항에 있어서,상기 SRAM 셀은제1 부하 트랜지스터 및 제1 구동 트랜지스터를 포함하고, 입력과 출력을 가지는 제1 반전기; 및상기 제1 반전기와 교차-결합되고, 제2 부하 트랜지스터 및 제2 구동 트랜지스터를 포함하며, 입력과 출력을 가지는 제2 반전기를 포함하는 회로.
- 제4항에 있어서,상기 판독 회로는 적어도 하나의 판독 구동 트랜지스터를 더 포함하고, 상기 판독 구동 트랜지스터의 게이트는 상기 제2 반전기의 출력과 결합되며, 상기 판독 구동 트랜지스터의 드레인은 상기 적어도 하나의 판독 트랜지스터의 소스와 결합되는 회로.
- 제4항에 있어서,상기 회로는 판독 트랜지스터 및 상보형 판독 트랜지스터를 포함하는 회로.
- 제6항에 있어서,판독 구동 트랜지스터, 및 상보형 판독 구동 트랜지스터를 더 포함하고,상기 판독 구동 트랜지스터의 게이트는 상기 제2 반전기의 출력과 결합되고, 상기 판독 구동 트랜지스터의 드레인은 상기 판독 트랜지스터의 소스와 결합되며,상기 상보형 판독 구동 트랜지스터의 게이트는 상기 제1 반전기의 출력과 결합되고, 상기 상보형 판독 구동 트랜지스터의 드레인은 상기 상보형 판독 트랜지스터의 소스와 결합되는 회로.
- SRAM 셀로서,한 쌍의 교차-결합 반전기;워드 라인에 의하여 게이트 제어되고, 상기 교차-결합 반전기 중의 하나의 출력과 기록 비트-라인 사이에 결합되는 기록 트랜지스터; 및상기 워드 라인에 의하여 게이트 제어되고, 판독 비트-라인 및 판독 구동 트랜지스터 사이에 결합되는 판독 트랜지스터를 포함하고,상기 판독 구동 트랜지스터는 상기 판독 트랜지스터 및 전압원 사이에 결합되고, 상기 교차-결합 반전기 중의 하나의 출력에 의하여 게이트 제어되는 SRAM 셀.
- SRAM 장치로서,행 및 열로 배치된 SRAM 셀의 어레이;적어도 하나의 행과 연관되며, 판독 및 기록 모두를 위해 상기 행의 셀에 대한 액세스를 제어하도록 동작하는 워드 라인;적어도 하나의 열과 연관되고, 기록을 위해 상기 열의 셀에 대한 입력을 제공하도록 동작하는 기록 비트-라인; 및상기 적어도 하나의 열과 연관되고, 상기 열의 셀로부터 출력을 수신하도록 동작하는 판독 비트-라인을 포함하는 SRAM 장치.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/202,141 US7483332B2 (en) | 2005-08-11 | 2005-08-11 | SRAM cell using separate read and write circuitry |
US11/202,141 | 2005-08-11 | ||
PCT/US2006/030840 WO2007021668A2 (en) | 2005-08-11 | 2006-08-09 | Sram cell with separate read-write circuitry |
Publications (2)
Publication Number | Publication Date |
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KR20080039977A true KR20080039977A (ko) | 2008-05-07 |
KR100932342B1 KR100932342B1 (ko) | 2009-12-16 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020087005769A KR100932342B1 (ko) | 2005-08-11 | 2006-08-09 | 별개의 판독-기록 회로를 구비한 sram 셀 |
Country Status (6)
Country | Link |
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US (2) | US7483332B2 (ko) |
EP (1) | EP1924998A4 (ko) |
JP (1) | JP2009505315A (ko) |
KR (1) | KR100932342B1 (ko) |
CN (1) | CN101243518A (ko) |
WO (1) | WO2007021668A2 (ko) |
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JP3920804B2 (ja) * | 2003-04-04 | 2007-05-30 | 松下電器産業株式会社 | 半導体記憶装置 |
JP2005302231A (ja) * | 2004-04-15 | 2005-10-27 | Toshiba Corp | スタティックランダムアクセスメモリ |
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2005
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- 2006-08-09 JP JP2008526122A patent/JP2009505315A/ja active Pending
- 2006-08-09 KR KR1020087005769A patent/KR100932342B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
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JP2009505315A (ja) | 2009-02-05 |
US20070035986A1 (en) | 2007-02-15 |
EP1924998A4 (en) | 2009-11-25 |
WO2007021668A2 (en) | 2007-02-22 |
EP1924998A2 (en) | 2008-05-28 |
KR100932342B1 (ko) | 2009-12-16 |
WO2007021668A3 (en) | 2007-05-31 |
US7710763B2 (en) | 2010-05-04 |
CN101243518A (zh) | 2008-08-13 |
US7483332B2 (en) | 2009-01-27 |
US20090103375A1 (en) | 2009-04-23 |
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