JP5972501B1 - センシング回路を使用して比較演算を実行するための装置及び方法 - Google Patents
センシング回路を使用して比較演算を実行するための装置及び方法 Download PDFInfo
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- 230000004044 response Effects 0.000 claims abstract description 10
- 230000000295 complement effect Effects 0.000 claims description 16
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- 239000013642 negative control Substances 0.000 description 1
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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
- G11C7/06—Sense amplifiers; Associated circuits, e.g. timing or triggering 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
- G11C7/06—Sense amplifiers; Associated circuits, e.g. timing or triggering circuits
- G11C7/065—Differential amplifiers of latching type
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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
- G11C11/401—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
- G11C11/409—Read-write [R-W] circuits
- G11C11/4091—Sense or sense/refresh amplifiers, or associated sense circuitry, e.g. for coupled bit-line precharging, equalising or isolating
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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
- G11C11/401—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
- G11C11/409—Read-write [R-W] circuits
- G11C11/4096—Input/output [I/O] data management or control circuits, e.g. reading or writing circuits, I/O drivers or bit-line switches
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C15/00—Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores
- G11C15/04—Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores using semiconductor elements
- G11C15/043—Digital stores in which information comprising one or more characteristic parts is written into the store and in which information is read-out by searching for one or more of these characteristic parts, i.e. associative or content-addressed stores using semiconductor elements using capacitive charge storage elements
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/06—Sense amplifiers; Associated circuits, e.g. timing or triggering circuits
- G11C7/062—Differential amplifiers of non-latching type, e.g. comparators, long-tailed pairs
-
- 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
-
- 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
- G11C7/1006—Data managing, e.g. manipulating data before writing or reading out, data bus switches or control circuits therefor
-
- 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
- G11C7/1048—Data bus control circuits, e.g. precharging, presetting, equalising
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/12—Bit line control circuits, e.g. drivers, boosters, pull-up circuits, pull-down circuits, precharging circuits, equalising circuits, for bit lines
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Abstract
Description
Claims (18)
- 一つの電圧へメモリ・アレイの入出力(IO)線を充電し、
前記メモリ・アレイの複数のアクセス線を活性化し、
前記複数のアクセス線へ結合された複数のメモリ・セルをセンシングし、
2次センス・アンプを介して、前記IO線の前記電圧が前記複数のメモリ・セルへ対応する選択されたデコード線の活性化に応じて変化するかどうかをセンシングする、
ことで前記メモリ・アレイに格納されたデータが比較値に一致するかどうかを判定する、
ことを備える、比較機能を実行する方法。 - IO線を充電することは、プリチャージ電圧へ前記メモリ・アレイのIO線をプリチャージすることを含む、請求項1の前記方法。
- 前記電圧へ前記IO線を充電することは、供給電圧へ前記IO線を充電することを含む、請求項1の前記方法。
- 一つの電圧へ前記IO線を充電することは、接地電圧へ前記IO線を充電することを含む、請求項1の前記方法。
- 選択されたデコード線を活性化することは、前記アレイの一つのサブセットの前記デコード線を活性化することを備える、請求項1の前記方法。
- 前記サブセットの一つのセットの基準に基づき前記サブセットのデコード線を判定することを含む、請求項5の前記方法。
- メモリ・セルのアレイ、
前記アレイへ結合され、
プリチャージ電圧へ前記アレイのローカル入出力(LIO)線のプリチャージ、及び
前記アレイのアクセス線及びデコード線の選択的活性化
を引き起こすように構成された制御回路、ならびに
前記アレイへ結合され、
活性化されたアクセス線へ結合された複数の選択されたメモリ・セルをセンシングし、
2次センス・アンプを使用して、前記LIO線の前記プリチャージ電圧が前記複数の選択されたメモリ・セルへ対応するデコード線の活性化に応じて変化するかどうかを判定する、
ように構成されたセンシング回路、
を備える、装置。 - 前記プリチャージ電圧は特定のデータ値へ対応し、前記LIO線の前記プリチャージ電圧で判定された変化は、活性化されたデコード線へ対応する選択されたメモリ・セルが前記特定のデータ値以外のデータ値を格納することを示す、請求項7の前記装置。
- 前記LIO線の前記プリチャージ電圧で判定された変化は、メモリ・セルのデータが比較値に一致することを示す、請求項7の前記装置。
- メモリ・セルのアレイ、
前記メモリ・アレイへ結合され、電圧へ前記メモリ・アレイの入出力(IO)線の充電を引き起こすように構成された制御回路、及び
前記メモリ・アレイへ結合され、
それぞれの組の相補センス線へ結合された複数の1次センス・アンプ、
前記複数の1次センス・アンプへ結合された複数のアキュムレータ、
前記IO線へ結合され、前記IO線の前記電圧が前記アレイの選択されたデコード線の活性化に応じて変化するかどうかをセンシングし、前記アレイに格納されたデータが比較値に一致するかどうかを判定するように構成された2次センス・アンプ、
を備える、センシング回路、
を備える、装置。 - 各前記アキュムレータは、
一組の相補センス線の第一センス線へ結合された第一ソース/ドレイン領域を有する第一パス・トランジスタ、
前記一組の相補センス線の第二センス線へ結合された第一ソース/ドレイン領域を有する第二パス・トランジスタ、ならびに
第一組のクロス・カップルされたトランジスタ及び第二組のクロス・カップルされた トランジスタ、
を備える、請求項10の前記装置。 - 前記装置は、前記一組の相補センス線の少なくとも一つに信号により表されたデータ値で累算演算を実行することを備える論理演算を実行するように構成される、請求項11の前記装置。
- 前記信号は、前記複数の1次センス・アンプの少なくとも一つを介して前記IO線へ提供される、請求項12の前記装置。
- 前記アキュムレータは反転信号を受信するように構成され、前記反転信号を活性化することは、前記アキュムレータに格納されたデータ値を反転し、前記一組の相補センス線の一つで前記反転されたデータ値へ対応する信号を駆動する、請求項12の前記装置。
- 前記一組の相補センス線は、前記複数の1次センス・アンプの少なくとも一つへ前記反転されたデータ値へ対応する前記信号を提供するように構成される、請求項14の前記装置。
- 前記複数の1次センス・アンプの前記少なくとも一つは前記IO_線へ前記反転されたデータ値を提供するように構成され、前記IO_線は前記2次センス・アンプへ前記反転されたデータ値を提供するように構成される、請求項15の前記装置。
- 前記IO_線は接地電圧へ充電され、前記2次センス・アンプは、前記反転されたデータ値へ対応する前記信号が接地電圧より大きい電圧である場合に前記電圧で変化を検出する、請求項16の前記装置。
- メモリ・セルのアレイ、
前記アレイへ結合され、比較演算の部分として、
プリチャージ電圧へ前記アレイのローカル入出力(LIO)線のプリチャージを引き起こし、
前記アレイのアクセス線の選択的活性化を引き起こし、
前記アレイのデコード線の選択的活性化を引き起こす、
ように構成された制御回路、ならびに、
前記アレイへ結合され、
複数の選択的に活性化されたアクセス線へ結合されたメモリ・セルをセンシングし、
2次センス・アンプを使用して、前記LIO線の前記プリチャージ電圧が前記メモリ・セルへ対応する複数の前記デコード線の選択的活性化に応じて変化するかどうかをセンシングする、
ように構成された、センシング回路、
を備え、
前記プリチャージ電圧が前記複数の列デコード線の前記選択的活性化に応じて変化する判定は、前記複数の選択的に活性化されたアクセス線へ結合された前記メモリ・セルの少なくとも一つが比較値に一致するデータ値を格納することを示す、
装置。
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US13/952,054 | 2013-07-26 | ||
US13/952,054 US8964496B2 (en) | 2013-07-26 | 2013-07-26 | Apparatuses and methods for performing compare operations using sensing circuitry |
PCT/US2014/046094 WO2015013043A1 (en) | 2013-07-26 | 2014-07-10 | Apparatuses and methods for performing compare operations using sensing circuitry |
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JP5972501B1 true JP5972501B1 (ja) | 2016-08-17 |
JP2016532920A JP2016532920A (ja) | 2016-10-20 |
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US (5) | US8964496B2 (ja) |
EP (1) | EP3025346B1 (ja) |
JP (1) | JP5972501B1 (ja) |
KR (3) | KR101970932B1 (ja) |
CN (2) | CN108288478B (ja) |
TW (2) | TWI603340B (ja) |
WO (1) | WO2015013043A1 (ja) |
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