JPS5331926A - Writing alteration circuit - Google Patents

Writing alteration circuit

Info

Publication number
JPS5331926A
JPS5331926A JP10573376A JP10573376A JPS5331926A JP S5331926 A JPS5331926 A JP S5331926A JP 10573376 A JP10573376 A JP 10573376A JP 10573376 A JP10573376 A JP 10573376A JP S5331926 A JPS5331926 A JP S5331926A
Authority
JP
Japan
Prior art keywords
writing
circuit
alteration circuit
alteration
obtian
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
JP10573376A
Other languages
Japanese (ja)
Inventor
Koji Tanagawa
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry Co 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP10573376A priority Critical patent/JPS5331926A/en
Publication of JPS5331926A publication Critical patent/JPS5331926A/en
Pending legal-status Critical Current

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
    • G11C17/08—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements

Landscapes

  • Read Only Memory (AREA)

Abstract

PURPOSE:To shorten the writing time by adding an exclusive OR circuit and carrying out a writing of only the error bit, and to obtian a circuit which is capable of performing the writing, correction and alteration with an external circuit.
JP10573376A 1976-09-06 1976-09-06 Writing alteration circuit Pending JPS5331926A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10573376A JPS5331926A (en) 1976-09-06 1976-09-06 Writing alteration circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10573376A JPS5331926A (en) 1976-09-06 1976-09-06 Writing alteration circuit

Publications (1)

Publication Number Publication Date
JPS5331926A true JPS5331926A (en) 1978-03-25

Family

ID=14415478

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10573376A Pending JPS5331926A (en) 1976-09-06 1976-09-06 Writing alteration circuit

Country Status (1)

Country Link
JP (1) JPS5331926A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5671154A (en) * 1979-11-15 1981-06-13 Nec Corp Information processing device
JPS5886555U (en) * 1981-12-07 1983-06-11 横河電機株式会社 light irradiation densitometer
JPS61181703U (en) * 1985-05-07 1986-11-13
JPS6277904A (en) * 1985-10-01 1987-04-10 株式会社　河合工業所 Microwave irradiation bonding method of flash panel

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5671154A (en) * 1979-11-15 1981-06-13 Nec Corp Information processing device
JPH0146891B2 (en) * 1979-11-15 1989-10-11 Nippon Electric Co
JPS5886555U (en) * 1981-12-07 1983-06-11 横河電機株式会社 light irradiation densitometer
JPS61181703U (en) * 1985-05-07 1986-11-13
JPS6277904A (en) * 1985-10-01 1987-04-10 株式会社　河合工業所 Microwave irradiation bonding method of flash panel

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