IT1173302B - Dispositivo di memoria a semiconduttori,in particolare memoria programmabile di sola lettura - Google Patents

Dispositivo di memoria a semiconduttori,in particolare memoria programmabile di sola lettura

Info

Publication number: IT1173302B
Authority: IT; Italy
Prior art keywords: read; memory device; particular programmable; semiconductor memory; programmable memory
Prior art date: 1983-02-21

Application number

IT19695/84A

Other languages

English (en)

Other versions

IT8419695A0 (it

IT8419695A1 (it

Inventor

Ohno Nobuhiko

Ogiue Katsumi

Mizue Katsuya

Okuda Moriyoshi

Original Assignee

Hitachi Ltd

Hitachi Microcumputer Eng

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.)

1983-02-21

Filing date

1984-02-17

Publication date

1987-06-24

1984-02-17 Application filed by Hitachi Ltd, Hitachi Microcumputer Eng filed Critical Hitachi Ltd

1984-02-17 Publication of IT8419695A0 publication Critical patent/IT8419695A0/it

1985-08-17 Publication of IT8419695A1 publication Critical patent/IT8419695A1/it

1987-06-24 Application granted granted Critical

1987-06-24 Publication of IT1173302B publication Critical patent/IT1173302B/it

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
- G11C17/14—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
- G11C17/18—Auxiliary circuits, e.g. for writing into memory

IT19695/84A 1983-02-21 1984-02-17 Dispositivo di memoria a semiconduttori,in particolare memoria programmabile di sola lettura IT1173302B (it)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP58026196A JPS59152594A (ja)	1983-02-21	1983-02-21	半導体記憶装置

Publications (3)

Publication Number	Publication Date
IT8419695A0 IT8419695A0 (it)	1984-02-17
IT8419695A1 IT8419695A1 (it)	1985-08-17
IT1173302B true IT1173302B (it)	1987-06-24

Family

ID=12186732

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
IT19695/84A IT1173302B (it)	1983-02-21	1984-02-17	Dispositivo di memoria a semiconduttori,in particolare memoria programmabile di sola lettura

Country Status (9)

Country	Link
US (1)	US4656606A (it)
JP (1)	JPS59152594A (it)
KR (1)	KR840008074A (it)
DE (1)	DE3406041A1 (it)
FR (1)	FR2541494A1 (it)
GB (1)	GB2135550B (it)
HK (1)	HK2088A (it)
IT (1)	IT1173302B (it)
SG (1)	SG87687G (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4672576A (en) *	1985-07-09	1987-06-09	Motorola, Inc.	Programmable read only memory output circuit
EP0229081A4 (en) *	1985-07-09	1990-03-22	Motorola Inc	ADAPTABLE LINE DRIVER CIRCUIT AND OUTPUT CIRCUIT FOR PROGRAMMABLE READ-ONLY MEMORY.
US4887241A (en) *	1986-07-31	1989-12-12	Advanced Micro Devices, Inc.	ECL PROM programming method and apparatus using ECL addressing means
US4931999A (en) *	1987-07-27	1990-06-05	Mitsubishi Denki Kabushiki Kaisha	Access circuit for a semiconductor memory
JPH0229998A (ja) *	1988-07-19	1990-01-31	Nec Corp	プログラマブル・リード・オンリー・メモリ
JPH02105395A (ja) *	1988-10-13	1990-04-17	Nec Corp	プログラマブル・リード・オンリー・メモリ

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3742592A (en) *	1970-07-13	1973-07-03	Intersil Inc	Electrically alterable integrated circuit read only memory unit and process of manufacturing
FR2334170A1 (fr) *	1975-12-05	1977-07-01	Honeywell Bull Soc Ind	Memoire morte integree
FR2405537A1 (fr) *	1977-10-05	1979-05-04	Cii Honeywell Bull	Dispositif de memoire programmable
JPS5828679B2 (ja) *	1979-04-25	1983-06-17	富士通株式会社	半導体記憶装置の書込み回路
US4385368A (en) *	1980-11-24	1983-05-24	Raytheon Company	Programmable read only memory

1983
- 1983-02-21 JP JP58026196A patent/JPS59152594A/ja active Pending
1984
- 1984-02-07 FR FR8401837A patent/FR2541494A1/fr active Pending
- 1984-02-13 GB GB08403713A patent/GB2135550B/en not_active Expired
- 1984-02-14 US US06/579,960 patent/US4656606A/en not_active Expired - Fee Related
- 1984-02-17 IT IT19695/84A patent/IT1173302B/it active
- 1984-02-17 KR KR1019840000768A patent/KR840008074A/ko not_active Withdrawn
- 1984-02-20 DE DE3406041A patent/DE3406041A1/de not_active Withdrawn
1987
- 1987-10-12 SG SG876/87A patent/SG87687G/en unknown
1988
- 1988-01-07 HK HK20/88A patent/HK2088A/xx unknown

Also Published As

Publication number	Publication date
SG87687G (en)	1988-05-20
JPS59152594A (ja)	1984-08-31
FR2541494A1 (fr)	1984-08-24
US4656606A (en)	1987-04-07
GB2135550B (en)	1986-12-03
GB8403713D0 (en)	1984-03-14
KR840008074A (ko)	1984-12-12
IT8419695A0 (it)	1984-02-17
HK2088A (en)	1988-01-15
DE3406041A1 (de)	1984-08-23
GB2135550A (en)	1984-08-30
IT8419695A1 (it)	1985-08-17

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