CN101867169B - 应用于快闪存储器的保护电路 - Google Patents
应用于快闪存储器的保护电路 Download PDFInfo
- Publication number
- CN101867169B CN101867169B CN200910205229.8A CN200910205229A CN101867169B CN 101867169 B CN101867169 B CN 101867169B CN 200910205229 A CN200910205229 A CN 200910205229A CN 101867169 B CN101867169 B CN 101867169B
- Authority
- CN
- China
- Prior art keywords
- flash memory
- pin
- switch element
- power
- reference voltage
- 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.)
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Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/30—Power supply circuits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C16/00—Erasable programmable read-only memories
- G11C16/02—Erasable programmable read-only memories electrically programmable
- G11C16/06—Auxiliary circuits, e.g. for writing into memory
- G11C16/22—Safety or protection circuits preventing unauthorised or accidental access to memory cells
- G11C16/225—Preventing erasure, programming or reading when power supply voltages are outside the required ranges
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C5/00—Details of stores covered by group G11C11/00
- G11C5/005—Circuit means for protection against loss of information of semiconductor storage devices
Abstract
Description
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17011609P | 2009-04-17 | 2009-04-17 | |
US61/170,116 | 2009-04-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101867169A CN101867169A (zh) | 2010-10-20 |
CN101867169B true CN101867169B (zh) | 2016-07-13 |
Family
ID=42958776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN200910205229.8A Active CN101867169B (zh) | 2009-04-17 | 2009-10-10 | 应用于快闪存储器的保护电路 |
Country Status (3)
Country | Link |
---|---|
US (1) | US8624434B2 (zh) |
CN (1) | CN101867169B (zh) |
TW (1) | TWI451424B (zh) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7899967B2 (en) * | 2008-11-24 | 2011-03-01 | Mediatek Inc. | Systems for accessing memory card and methods for accessing memory card by a control unit |
BR112013019308A2 (pt) * | 2011-02-01 | 2020-10-27 | 3M Innovative Propereties Company | interface passiva para um dispositivo eletrônico de memória |
US20120210151A1 (en) * | 2011-02-11 | 2012-08-16 | Mediatek Inc. | Communication systems |
ITMI20111201A1 (it) | 2011-06-29 | 2012-12-30 | St Microelectronics Srl | Sistema di controllo per dispositivo di memoria |
US8909852B1 (en) * | 2011-12-30 | 2014-12-09 | Google Inc. | Disabling write protection on a serial peripheral interface chip |
KR101933431B1 (ko) * | 2012-04-19 | 2018-12-31 | 삼성전자주식회사 | 휴대단말기의 외부메모리 전원제어 장치 및 방법 |
JP6185311B2 (ja) * | 2012-07-20 | 2017-08-23 | 株式会社半導体エネルギー研究所 | 電源制御回路、及び信号処理回路 |
US9466385B1 (en) * | 2012-10-17 | 2016-10-11 | Google Inc. | Methods and apparatus related to a write protect fastener |
KR20150054206A (ko) * | 2013-11-11 | 2015-05-20 | 삼성전자주식회사 | 플래시 메모리의 데이터 보호 방법 및 장치 |
CN105280149B (zh) * | 2015-11-11 | 2017-11-17 | 深圳市华星光电技术有限公司 | 一种Mura补偿数据写入装置及方法 |
CN107274920B (zh) * | 2016-04-08 | 2020-05-08 | 中芯国际集成电路制造(上海)有限公司 | 用于存储器的电压维持电路、存储器及电子设备 |
US11322187B2 (en) * | 2018-11-06 | 2022-05-03 | HKC Corporation Limited | Protection circuit for memory in display panel and display panel |
TWI682397B (zh) * | 2018-12-12 | 2020-01-11 | 新唐科技股份有限公司 | 資料處理系統與資料處理方法 |
CN110147333B (zh) * | 2019-04-19 | 2021-09-28 | 宜鼎国际股份有限公司 | 写入保护电路 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2157581Y (zh) * | 1993-01-08 | 1994-02-23 | 中国中医研究院基础理论研究所 | 高可靠随机存储器数据保护器 |
CN2251186Y (zh) * | 1996-05-16 | 1997-04-02 | 成修治 | 掉电保护存储器 |
US5650741A (en) * | 1993-05-27 | 1997-07-22 | Fujitsu Limited | Power line connection circuit and power line switch IC for the same |
CN2896387Y (zh) * | 2006-04-05 | 2007-05-02 | 浪潮齐鲁软件产业有限公司 | 税控收款机断电续打装置 |
CN2930064Y (zh) * | 2006-04-05 | 2007-08-01 | 浪潮齐鲁软件产业有限公司 | 税控收款机断电保护装置 |
CN101089991A (zh) * | 2007-06-18 | 2007-12-19 | 深圳市兆驰股份有限公司 | 带flash的电子产品及其软件升级方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3859638A (en) * | 1973-05-31 | 1975-01-07 | Intersil Inc | Non-volatile memory unit with automatic standby power supply |
JPS56122132U (zh) * | 1980-02-18 | 1981-09-17 | ||
US5384747A (en) * | 1994-01-07 | 1995-01-24 | Compaq Computer Corporation | Circuit for placing a memory device into low power mode |
US6735117B2 (en) * | 2002-07-01 | 2004-05-11 | Honeywell International Inc. | Hold-up power supply for flash memory |
US6856556B1 (en) * | 2003-04-03 | 2005-02-15 | Siliconsystems, Inc. | Storage subsystem with embedded circuit for protecting against anomalies in power signal from host |
TWI300940B (en) * | 2006-07-18 | 2008-09-11 | Qisda Corp | Write protect controller and control method thereof |
TW200836221A (en) * | 2007-02-26 | 2008-09-01 | Xtramus Technologies | Energy storage device of a transformer |
US8009499B2 (en) * | 2008-06-16 | 2011-08-30 | Hewlett-Packard Development Company, L.P. | Providing a capacitor-based power supply to enable backup copying of data from volatile storage to persistent storage |
-
2009
- 2009-10-06 TW TW98133821A patent/TWI451424B/zh active
- 2009-10-10 CN CN200910205229.8A patent/CN101867169B/zh active Active
-
2010
- 2010-04-06 US US12/754,760 patent/US8624434B2/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2157581Y (zh) * | 1993-01-08 | 1994-02-23 | 中国中医研究院基础理论研究所 | 高可靠随机存储器数据保护器 |
US5650741A (en) * | 1993-05-27 | 1997-07-22 | Fujitsu Limited | Power line connection circuit and power line switch IC for the same |
CN2251186Y (zh) * | 1996-05-16 | 1997-04-02 | 成修治 | 掉电保护存储器 |
CN2896387Y (zh) * | 2006-04-05 | 2007-05-02 | 浪潮齐鲁软件产业有限公司 | 税控收款机断电续打装置 |
CN2930064Y (zh) * | 2006-04-05 | 2007-08-01 | 浪潮齐鲁软件产业有限公司 | 税控收款机断电保护装置 |
CN101089991A (zh) * | 2007-06-18 | 2007-12-19 | 深圳市兆驰股份有限公司 | 带flash的电子产品及其软件升级方法 |
Also Published As
Publication number | Publication date |
---|---|
CN101867169A (zh) | 2010-10-20 |
US20100265785A1 (en) | 2010-10-21 |
US8624434B2 (en) | 2014-01-07 |
TWI451424B (zh) | 2014-09-01 |
TW201039352A (en) | 2010-11-01 |
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Legal Events
Date | Code | Title | Description |
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C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20201020 Address after: No. 1, Xingzhu Road, Hsinchu Science Park, Taiwan, China Patentee after: MEDIATEK Inc. Address before: 518057, Guangdong, Shenzhen hi tech Zone, South District, science and technology, South ten road, Shenzhen Institute of Aerospace Science and technology innovation, C block, building 4 Patentee before: Mstar Semiconductor,Inc. Patentee before: MEDIATEK Inc. Effective date of registration: 20201020 Address after: 4 / F, block C, Shenzhen Aerospace Science and Technology Innovation Research Institute, science and technology south 10th Road, South District, Shenzhen high tech Zone, Guangdong Province Patentee after: Mstar Semiconductor,Inc. Patentee after: MEDIATEK Inc. Address before: 518057, Guangdong, Shenzhen hi tech Zone, South District, science and technology, South ten road, Shenzhen Institute of Aerospace Science and technology innovation, C block, building 4 Patentee before: Mstar Semiconductor,Inc. Patentee before: MSTAR SEMICONDUCTOR Inc. |
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TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20210408 Address after: Han Guojingjidao Patentee after: Sk Hynix Inc. Address before: No. 1, Xingzhu Road, Hsinchu Science Park, Taiwan, China Patentee before: MEDIATEK Inc. |