JPS5313322A - Content-modification system of programmable read only memory unit - Google Patents

Content-modification system of programmable read only memory unit

Info

Publication number
JPS5313322A
JPS5313322A JP8655076A JP8655076A JPS5313322A JP S5313322 A JPS5313322 A JP S5313322A JP 8655076 A JP8655076 A JP 8655076A JP 8655076 A JP8655076 A JP 8655076A JP S5313322 A JPS5313322 A JP S5313322A
Authority
JP
Japan
Prior art keywords
content
memory unit
programmable read
modification system
modification
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
JP8655076A
Other languages
Japanese (ja)
Inventor
Tatsushige Bito
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP8655076A priority Critical patent/JPS5313322A/en
Publication of JPS5313322A publication Critical patent/JPS5313322A/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
    • G11C17/14—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

Landscapes

  • Read Only Memory (AREA)
  • For Increasing The Reliability Of Semiconductor Memories (AREA)

Abstract

PURPOSE:The programmable ROM is realized which is provided with a content-modification function (a small area for modification and an address conversion function) to modify memory contents within the range prescribed previously. so that the time and the cost at a change and modification time can be reduced.
JP8655076A 1976-07-22 1976-07-22 Content-modification system of programmable read only memory unit Pending JPS5313322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8655076A JPS5313322A (en) 1976-07-22 1976-07-22 Content-modification system of programmable read only memory unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8655076A JPS5313322A (en) 1976-07-22 1976-07-22 Content-modification system of programmable read only memory unit

Publications (1)

Publication Number Publication Date
JPS5313322A true JPS5313322A (en) 1978-02-06

Family

ID=13890103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8655076A Pending JPS5313322A (en) 1976-07-22 1976-07-22 Content-modification system of programmable read only memory unit

Country Status (1)

Country Link
JP (1) JPS5313322A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4326883A (en) * 1979-07-10 1982-04-27 Inland Steel Company Process for deoiling and agglomerating oil-bearing mill scale

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4326883A (en) * 1979-07-10 1982-04-27 Inland Steel Company Process for deoiling and agglomerating oil-bearing mill scale

Similar Documents

Publication Publication Date Title
AU512008B2 (en) Packing container with opening arrangement
AU511307B2 (en) Collapsible container
AU501387B2 (en) Electronic dentonator cap
AU504630B2 (en) Container for immunochemical and enzymatic assays
AU530887B2 (en) Memory with parallel refresh operations
IT1081545B (en) ADDRESSABLE MEMORY WITH CONTENTS ADAPTED TO THE BEST
JPS5331390A (en) Mouthhprotective cap for pharmaceuticals container
IT8026267A0 (en) CONTAINER WITH CLOSURE.
AU516961B2 (en) Ventilation of shipping containers
AU510502B2 (en) Container cover
AU502291B2 (en) Divided container
AU506445B2 (en) Container
AU508468B2 (en) Container closure
JPS5313322A (en) Content-modification system of programmable read only memory unit
JPS543441A (en) High-speed arithmetic system
SU587915A1 (en) Fish-rearing container
ZA773351B (en) Collapsible containers
CA1031727A (en) Container
JPS5335A (en) Contents rewriting method for fixed memory
AU501007B2 (en) Tamperproof container
AU512734B2 (en) Container closure
SU593043A1 (en) Vessel closure
SU595792A1 (en) Memory cell
JPS5283032A (en) Memory address system
IT1116731B (en) CONTAINER WITH LID