JPH05165738A - 半導体メモリ装置 - Google Patents

半導体メモリ装置

Info

Publication number
JPH05165738A
JPH05165738A JP3331868A JP33186891A JPH05165738A JP H05165738 A JPH05165738 A JP H05165738A JP 3331868 A JP3331868 A JP 3331868A JP 33186891 A JP33186891 A JP 33186891A JP H05165738 A JPH05165738 A JP H05165738A
Authority
JP
Japan
Prior art keywords
power supply
power
semiconductor memory
battery
unit
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.)
Pending
Application number
JP3331868A
Other languages
English (en)
Japanese (ja)
Inventor
Soichiro Nagasawa
聡一郎 長沢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP3331868A priority Critical patent/JPH05165738A/ja
Priority to DE69230850T priority patent/DE69230850T2/de
Priority to EP92311414A priority patent/EP0547862B1/en
Priority to US07/990,837 priority patent/US5424994A/en
Publication of JPH05165738A publication Critical patent/JPH05165738A/ja
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/30—Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Power Sources (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
JP3331868A 1991-12-16 1991-12-16 半導体メモリ装置 Pending JPH05165738A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP3331868A JPH05165738A (ja) 1991-12-16 1991-12-16 半導体メモリ装置
DE69230850T DE69230850T2 (de) 1991-12-16 1992-12-15 Als externer Speicher verwendbare Halbleiterspeichereinheit
EP92311414A EP0547862B1 (en) 1991-12-16 1992-12-15 Semiconductor memory unit used as external storage
US07/990,837 US5424994A (en) 1991-12-16 1992-12-16 Semiconductor memory unit used as external storage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3331868A JPH05165738A (ja) 1991-12-16 1991-12-16 半導体メモリ装置

Publications (1)

Publication Number Publication Date
JPH05165738A true JPH05165738A (ja) 1993-07-02

Family

ID=18248546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3331868A Pending JPH05165738A (ja) 1991-12-16 1991-12-16 半導体メモリ装置

Country Status (4)

Country Link
US (1) US5424994A (cg-RX-API-DMAC7.html)
EP (1) EP0547862B1 (cg-RX-API-DMAC7.html)
JP (1) JPH05165738A (cg-RX-API-DMAC7.html)
DE (1) DE69230850T2 (cg-RX-API-DMAC7.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100544181B1 (ko) * 2002-12-02 2006-01-23 삼성전자주식회사 휴대용 정보 단말기의 전원 제어 장치
JP2011150482A (ja) * 2010-01-20 2011-08-04 Sanyo Electric Co Ltd 電源回路
JP2013198280A (ja) * 2012-03-19 2013-09-30 Fujitsu Ltd バックアップ電源装置、電源システム、コンピュータシステム、コンピュータシステムの電源制御方法および電源制御プログラム

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3236105B2 (ja) * 1993-03-17 2001-12-10 富士通株式会社 不揮発性半導体記憶装置及びその動作試験方法
JP3186938B2 (ja) * 1994-12-12 2001-07-11 富士通株式会社 外部電源オン／オフ制御システム
JP3543879B2 (ja) * 1995-10-11 2004-07-21 住友ゴム工業株式会社 タイヤ空気圧異常警報装置
US5790873A (en) * 1996-07-23 1998-08-04 Standard Microsystems Corporation Method and apparatus for power supply switching with logic integrity protection
US5872984A (en) * 1997-04-01 1999-02-16 International Business Machines Corporation Uninterruptible power supply providing continuous power mainstore function for a computer system
US7836339B2 (en) * 2003-03-31 2010-11-16 Intel Corporation Computer memory power backup
TWI220174B (en) * 2003-07-08 2004-08-11 Winbond Electronics Corp Power source detector and detecting method thereof
US7907003B2 (en) 2009-01-14 2011-03-15 Standard Microsystems Corporation Method for improving power-supply rejection
US9817728B2 (en) * 2013-02-01 2017-11-14 Symbolic Io Corporation Fast system state cloning

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61160124A (ja) * 1984-12-29 1986-07-19 Hitachi Ltd メモリ給電方式

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980935A (en) * 1974-12-16 1976-09-14 Worst Bernard I Volatile memory support system
JPH0219912A (ja) * 1988-07-08 1990-01-23 Nec Eng Ltd 半導体デイスク装置
JPH0219911A (ja) * 1988-07-08 1990-01-23 Nec Eng Ltd 半導体デイスク装置
JPH0358111A (ja) * 1989-07-27 1991-03-13 Nec Eng Ltd 半導体デイスク装置
US5204963A (en) * 1990-12-07 1993-04-20 Digital Equipment Corporation Method and apparatus for a backup power controller for volatile random access memory

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61160124A (ja) * 1984-12-29 1986-07-19 Hitachi Ltd メモリ給電方式

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100544181B1 (ko) * 2002-12-02 2006-01-23 삼성전자주식회사 휴대용 정보 단말기의 전원 제어 장치
JP2011150482A (ja) * 2010-01-20 2011-08-04 Sanyo Electric Co Ltd 電源回路
JP2013198280A (ja) * 2012-03-19 2013-09-30 Fujitsu Ltd バックアップ電源装置、電源システム、コンピュータシステム、コンピュータシステムの電源制御方法および電源制御プログラム
US9317093B2 (en) 2012-03-19 2016-04-19 Fujitsu Limited Computer system selectively directing power to a battery from either a backup power supply or a normal power supply based on a reduction of voltage measured from one or more detection circuits

Also Published As

Publication number Publication date
EP0547862A3 (cg-RX-API-DMAC7.html) 1994-04-20
EP0547862B1 (en) 2000-03-29
DE69230850T2 (de) 2000-12-21
EP0547862A2 (en) 1993-06-23
US5424994A (en) 1995-06-13
DE69230850D1 (de) 2000-05-04

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Legal Events

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A02 Decision of refusal

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Effective date: 19970304