KR900006157B1 - Read - only memory - Google Patents

Read - only memory

Info

Publication number
KR900006157B1
KR900006157B1 KR8705093A KR870005093A KR900006157B1 KR 900006157 B1 KR900006157 B1 KR 900006157B1 KR 8705093 A KR8705093 A KR 8705093A KR 870005093 A KR870005093 A KR 870005093A KR 900006157 B1 KR900006157 B1 KR 900006157B1
Authority
KR
South Korea
Prior art keywords
address
address signal
rom
circuit
signal
Prior art date
Application number
KR8705093A
Other languages
English (en)
Other versions
KR870011622A (ko
Inventor
Yasushi Kasa
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
Publication of KR870011622A publication Critical patent/KR870011622A/ko
Application granted granted Critical
Publication of KR900006157B1 publication Critical patent/KR900006157B1/ko

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C17/00—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
    • G11C17/08—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F12/00—Accessing, addressing or allocating within memory systems or architectures
    • G06F12/02—Addressing or allocation; Relocation
    • G06F12/06—Addressing a physical block of locations, e.g. base addressing, module addressing, memory dedication
    • G06F12/0638—Combination of memories, e.g. ROM and RAM such as to permit replacement or supplementing of words in one module by words in another module
    • 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
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Read Only Memory (AREA)
  • Memory System (AREA)
KR8705093A 1986-05-28 1987-05-22 Read - only memory KR900006157B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP61122862A JPS62279598A (ja) 1986-05-28 1986-05-28 読出し専用メモリ
JP122862 1998-04-16

Publications (2)

Publication Number Publication Date
KR870011622A KR870011622A (ko) 1987-12-24
KR900006157B1 true KR900006157B1 (en) 1990-08-24

Family

ID=14846474

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8705093A KR900006157B1 (en) 1986-05-28 1987-05-22 Read - only memory

Country Status (5)

Country Link
US (1) US5034927A (ko)
EP (1) EP0254602B1 (ko)
JP (1) JPS62279598A (ko)
KR (1) KR900006157B1 (ko)
DE (1) DE3782108T2 (ko)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2547451B2 (ja) * 1989-09-18 1996-10-23 富士通株式会社 半導体記憶装置
KR960010736B1 (ko) * 1991-02-19 1996-08-07 미쓰비시뎅끼 가부시끼가이샤 마스크 rom 및 그 제조방법
KR100274099B1 (ko) * 1991-08-02 2001-01-15 비센트 비.인그라시아 점진적으로 프로그램가능한 비휘발성 메모리 및 이를 구비한 집적 회로와 비휘발성 메모리 프로그래밍 방법
US5829012A (en) * 1996-04-19 1998-10-27 Unisys Corporation System for programmably providing modified read signals within a ROM-based memory
US5880999A (en) * 1997-06-27 1999-03-09 Cypress Semiconductor Corporation Read only/random access memory architecture and methods for operating same
DE102018213210A1 (de) 2018-08-07 2020-02-13 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Verfahren zur Reinigung mineralischer Feststoffe und Holzmaterialien, Vorrichtung für dieses Verfahren und deren Verwendung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5847793B2 (ja) * 1979-11-12 1983-10-25 富士通株式会社 半導体記憶装置
US4322823A (en) * 1980-03-03 1982-03-30 International Business Machines Corp. Storage system having bilateral field effect transistor personalization
JPS6010334B2 (ja) * 1980-06-30 1985-03-16 株式会社日立製作所 複数系列メモリの優先選択装置
US4520464A (en) * 1982-06-01 1985-05-28 Ncr Corporation Transparent instruction word bus memory system
JPS5927349A (ja) * 1982-08-03 1984-02-13 Sharp Corp 電子機器
US4566082A (en) * 1983-03-23 1986-01-21 Tektronix, Inc. Memory pack addressing system
JPS59216263A (ja) * 1983-05-24 1984-12-06 Matsushita Electric Ind Co Ltd マイコンの外部ｒｏｍ拡張制御回路

Also Published As

Publication number Publication date
DE3782108D1 (de) 1992-11-12
EP0254602A2 (en) 1988-01-27
US5034927A (en) 1991-07-23
JPS62279598A (ja) 1987-12-04
EP0254602A3 (en) 1990-05-02
KR870011622A (ko) 1987-12-24
DE3782108T2 (de) 1993-02-18
EP0254602B1 (en) 1992-10-07

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Legal Events

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E902 Notification of reason for refusal
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