JP6389925B1 - 低読み出し電力を備えたメモリシステム - Google Patents
低読み出し電力を備えたメモリシステム Download PDFInfo
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- JP6389925B1 JP6389925B1 JP2017109618A JP2017109618A JP6389925B1 JP 6389925 B1 JP6389925 B1 JP 6389925B1 JP 2017109618 A JP2017109618 A JP 2017109618A JP 2017109618 A JP2017109618 A JP 2017109618A JP 6389925 B1 JP6389925 B1 JP 6389925B1
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- 230000015654 memory Effects 0.000 title claims abstract description 235
- 238000001514 detection method Methods 0.000 claims abstract description 24
- 230000000295 complement effect Effects 0.000 claims description 11
- APCLRHPWFCQIMG-UHFFFAOYSA-N 4-(5,6-dimethoxy-1-benzothiophen-2-yl)-4-oxobutanoic acid Chemical compound C1=C(OC)C(OC)=CC2=C1SC(C(=O)CCC(O)=O)=C2 APCLRHPWFCQIMG-UHFFFAOYSA-N 0.000 description 3
- 101150092365 MSA2 gene Proteins 0.000 description 3
- 101150005623 MSB2 gene Proteins 0.000 description 3
- 108010057081 Merozoite Surface Protein 1 Proteins 0.000 description 3
- 101100024330 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) MSB1 gene Proteins 0.000 description 3
- 101100240989 Schizosaccharomyces pombe (strain 972 / ATCC 24843) nrd1 gene Proteins 0.000 description 3
- 208000020997 susceptibility to multiple system atrophy 1 Diseases 0.000 description 3
- 230000003071 parasitic effect Effects 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
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- G11C17/16—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM using electrically-fusible links
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- G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
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- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
- H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps
- H02M3/073—Charge pumps of the Schenkel-type
- H02M3/075—Charge pumps of the Schenkel-type including a plurality of stages and two sets of clock signals, one set for the odd and one set for the even numbered stages
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K2005/00013—Delay, i.e. output pulse is delayed after input pulse and pulse length of output pulse is dependent on pulse length of input pulse
- H03K2005/0015—Layout of the delay element
- H03K2005/00195—Layout of the delay element using FET's
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/159—Applications of delay lines not covered by the preceding subgroups
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
Description
Claims (15)
- N本の第1ビットラインを含む第1メモリバンク;
第1経路セレクタであって、
N本の前記第1ビットラインに結合されたN個の入力端子と、
第1出力端子と、
第2出力端子と、を含む第1経路セレクタ;
N本の第2ビットラインを含む第2メモリバンク;
第2経路セレクタであって、
N本の前記第2ビットラインに結合されたN個の入力端子と、
第1出力端子と、
第2出力端子と、を含む第2経路セレクタ;及び
検知装置であって、
前記第1経路セレクタの第1出力端子に結合された第1入力端子と、前記第2経路セレクタの第1出力端子に結合された第2入力端子と、出力端子とを有する第1バンクセレクタと、
前記第1経路セレクタの第2出力端子に結合された第1入力端子と、前記第2経路セレクタの前記第2出力端子に結合された第2入力端子と、出力端子とを有する第2バンクセレクタと、
前記第1バンクセレクタの出力端子に結合された第1入力端子と、前記第2バンクセレクタの出力端子に結合された第2入力端子とを有する差動センスアンプと、を含む検知装置
を含み、
選択された第1ビットラインの検証動作又はマージン読み出し動作中、
前記差動センスアンプの第1入力端子と選択された前記第1ビットラインとの間に、前記第1バンクセレクタ及び前記第1経路セレクタを介して第1電気的接続が確立され、
前記差動センスアンプの第2入力端子とN本の前記第2ビットラインのうちの1つとの間に前記第2バンクセレクタ及び前記第2経路セレクタを介して第2電気的接続が確立される、メモリシステム。 - 前記第1メモリバンクは、M×N個の第1メモリセルをさらに含み、N本の前記第1ビットラインの各々はM×N個の前記第1メモリセルのうちのM個の第1メモリセルに結合され、Mは正の整数であり、Nは1より大きい正の整数であり、
前記第2メモリバンクは、M×N個の第2メモリセルをさらに含み、N本の前記第2ビットラインの各々は、M×N個の前記第2メモリセルのうちのM個の第2メモリセルに結合される、請求項1に記載のメモリシステム。 - M×N個の前記第1メモリセルは、第1セットの第1メモリセル及び第2セットの第1メモリセルを含み、前記第1セットの第1メモリセルに保存されたデータは、前記第2セットの第1メモリセルに保存されたデータに相補的であり、
M×N個の前記第2メモリセルは、第1セットの第2メモリセル及び第2セットの第2メモリセルを含み、前記第1セットの第2メモリセルに保存されたデータは、前記第2セットの第2メモリセルに保存されたデータに相補的である、請求項2に記載のメモリシステム。 - 前記第1セットの第1メモリセルのうちの選択された第1メモリセルの読み出し動作中、
前記第1経路セレクタは、選択された前記第1メモリセルに結合された前記第1経路セレクタの入力端子と前記第1経路セレクタの第1出力端子との間に第1電気的接続を確立し、選択された前記第1メモリセルに相補的な、前記第2セットの第1メモリセルのうちの第1メモリセルに結合された、前記第1経路セレクタの入力端子と前記第1経路セレクタの第2出力端子との間に第2電気的接続を確立し、
前記第1バンクセレクタは、前記第1バンクセレクタの第1入力端子と前記第1バンクセレクタの出力端子との間に電気的接続を確立し、
前記第2バンクセレクタは、前記第2バンクセレクタの第1入力端子と前記第2バンクセレクタの出力端子との間に電気的接続を確立する、請求項3に記載のメモリシステム。 - 選択された前記第1メモリセルと、選択された前記第1メモリセルに相補的な前記第1メモリセルは、同一ワードラインに結合されている、請求項4に記載のメモリシステム。
- 前記差動センスアンプは、前記第1経路セレクタが前記第1電気的接続及び前記第2電気的接続を確立した後にプリチャージされ、
前記同一ワードラインは、前記差動センスアンプがプリチャージされた後に、選択された前記第1メモリセルと、選択された前記第1メモリセルに相補的な前記第2セットの第1メモリのうちの前記第1メモリと、をオンにする、請求項5に記載のメモリシステム。 - 前記検知装置は、
基準電流を生成するように構成された基準電流源と、
前記基準電流源及び前記差動センスアンプの第1入力端子に結合された第1検知セレクタと、
前記基準電流源及び前記差動センスアンプの第2入力端子に結合された第2検知セレクタと、をさらに含む、請求項2に記載のメモリシステム。 - M×N個の前記第1メモリセルのうちの選択された第1メモリセルの検証動作又はマージン読み出し動作中、
前記第1経路セレクタは、選択された前記第1メモリセルに結合された前記第1経路セレクタの入力端子と前記第1経路セレクタの第1出力端子との間に電気的接続を確立し、
前記第2経路セレクタは、前記第2経路セレクタの入力端子と前記第2経路セレクタの第2出力端子との間に電気的接続を確立し、
前記第1バンクセレクタは、前記第1バンクセレクタの第1入力端子と前記第1バンクセレクタの出力端子との間に電気的接続を確立し、
前記第2バンクセレクタは、前記第2バンクセレクタの第2入力端子と前記第2バンクセレクタの出力端子との間に電気的接続を確立し、
前記第2検知セレクタは、前記基準電流源と前記差動センスアンプの第2入力端子との間に電気的接続を確立する、請求項7に記載のメモリシステム。 - 前記差動センスアンプは、前記第1経路セレクタが前記電気的接続を確立した後にプリチャージされ、
ワードラインが、前記差動センスアンプがプリチャージされた後に、選択された前記第1メモリセルをオンにする、請求項8に記載のメモリシステム。 - 前記差動センスアンプはラッチ型の差動センスアンプであり、前記第1経路セレクタが前記電気的接続を確立した後にプリチャージされ、
ワードラインが、前記差動センスアンプがプリチャージされる前に、選択された前記第1メモリセルをオンにする、請求項8に記載のメモリシステム。 - 前記差動センスアンプから前記第1バンクセレクタ及び前記第1経路セレクタを介した前記第1経路セレクタの入力端子までの経路の実効容量は、前記差動センスアンプから前記第2バンクセレクタ及び前記第2経路セレクタを介した前記第2経路セレクタの入力端子までの経路の実効容量に実質的に等しい、請求項8に記載のメモリシステム。
- 前記第1メモリバンクは、M本のワードラインをさらに含み、各々が、M×N個の前記第1メモリセルのうちのN個の第1メモリセルに結合され、
前記第2メモリバンクは、M本のワードラインをさらに含み、各々が、M×N個の前記第2メモリセルのうちのN個の第2メモリセルに結合されている、請求項2に記載のメモリシステム。 - 第1メモリセルに結合された第1入力端子と、第2メモリセルに結合された第2入力端子と、出力端子とを有する第1バンクセレクタと、
第3メモリセルに結合された第1入力端子と、第4メモリセルに結合された第2入力端子と、出力端子とを有する第2バンクセレクタと、
前記第1バンクセレクタの出力端子に結合された第1入力端子と、前記第2バンクセレクタの出力端子に結合された第2入力端子とを有する差動センスアンプと、を含み、
基準電流を生成するように構成された基準電流源と、
前記基準電流源及び前記差動センスアンプの第1入力端子に結合された第1検知セレクタと、
前記基準電流源及び前記差動センスアンプの第2入力端子に結合された第2検知セレクタと、をさらに含む、検知装置。 - 前記第1メモリセルに保存されたデータは、前記第3メモリセルに保存されたデータに相補的であり、
前記第1メモリセルの読み出し動作中、
前記第1バンクセレクタは、前記第1バンクセレクタの第1入力端子と前記第1バンクセレクタの出力端子との間に電気的接続を確立し、
前記第2バンクセレクタは、前記第2バンクセレクタの第1入力端子と第2バンクセレクタの出力端子との間に電気的接続を確立する、請求項13に記載の検知装置。 - 検証動作又はマージン読み出し動作中、前記第1メモリセルは、
前記第1バンクセレクタは、前記第1バンクセレクタの第1入力端子と前記第1バンクセレクタの出力端子との間に電気的接続を確立し、
前記第2バンクセレクタは、前記第2バンクセレクタの第2入力端子と前記第2バンクセレクタの出力端子との間に電気的接続を確立し、
前記第2検知セレクタは、前記基準電流源と前記差動センスアンプの第2入力端子との間に電気的接続を確立する、請求項13に記載の検知装置。
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CN108964444A (zh) | 2018-12-07 |
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US9935113B2 (en) | 2018-04-03 |
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