FR2289026A2 - Programmable fixed store using emitter coupled logic - has data stored in form of burned out resistors in transistor collector circuits - Google Patents

Programmable fixed store using emitter coupled logic - has data stored in form of burned out resistors in transistor collector circuits

Info

Publication number
FR2289026A2
FR2289026A2 FR7435842A FR7435842A FR2289026A2 FR 2289026 A2 FR2289026 A2 FR 2289026A2 FR 7435842 A FR7435842 A FR 7435842A FR 7435842 A FR7435842 A FR 7435842A FR 2289026 A2 FR2289026 A2 FR 2289026A2
Authority
FR
France
Prior art keywords
data stored
row
transistor
burned out
emitter coupled
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.)
Granted
Application number
FR7435842A
Other languages
French (fr)
Other versions
FR2289026B2 (en
Inventor
Michel Moussie
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.)
Radiotechnique Compelec RTC SA
Original Assignee
Radiotechnique Compelec RTC SA
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 Radiotechnique Compelec RTC SA filed Critical Radiotechnique Compelec RTC SA
Priority to FR7435842A priority Critical patent/FR2289026A2/en
Priority to DE2505186A priority patent/DE2505186C3/en
Priority to NL7501534A priority patent/NL7501534A/en
Priority to US05/549,065 priority patent/US3976983A/en
Priority to GB5954/75A priority patent/GB1498741A/en
Priority to CA219,934A priority patent/CA1044370A/en
Priority to IT20218/75A priority patent/IT1031700B/en
Priority to AU78197/75A priority patent/AU494303B2/en
Priority to JP1939975A priority patent/JPS50120225A/ja
Publication of FR2289026A2 publication Critical patent/FR2289026A2/en
Application granted granted Critical
Publication of FR2289026B2 publication Critical patent/FR2289026B2/fr
Granted 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

Landscapes

  • Read Only Memory (AREA)
  • Semiconductor Memories (AREA)

Abstract

The store consists of a number of matrices of npn transistors arranged in rows and columns, with a transistor at each "data point" in a matrix. A particular data point, or transistor is assessed by driving a current down the appropirate row and column conductors, the row conductors being attached to the emitters of a row of transistors, whilst the column conductors are attached to the bases of a column of transistors. The collector of each transistor is connected via a resistance to a suitable current and voltage supply. To write a "one" into a particular location the appropriate row and column are chosen and a current is driven through the collector resistance sufficient to melt and open circuit it.
FR7435842A 1974-02-15 1974-10-25 Programmable fixed store using emitter coupled logic - has data stored in form of burned out resistors in transistor collector circuits Granted FR2289026A2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FR7435842A FR2289026A2 (en) 1974-10-25 1974-10-25 Programmable fixed store using emitter coupled logic - has data stored in form of burned out resistors in transistor collector circuits
DE2505186A DE2505186C3 (en) 1974-02-15 1975-02-07 Programmable read-only memory
NL7501534A NL7501534A (en) 1974-02-15 1975-02-10 PROGRAMMABLE READ MEMORY.
US05/549,065 US3976983A (en) 1974-02-15 1975-02-11 Bipolar programmable read only memory with fusible links
GB5954/75A GB1498741A (en) 1974-02-15 1975-02-12 Programmable read-only memory
CA219,934A CA1044370A (en) 1974-02-15 1975-02-12 Programmable read only memory
IT20218/75A IT1031700B (en) 1974-02-15 1975-02-12 PROGRAMMABLE READ-ONLY NEMORY
AU78197/75A AU494303B2 (en) 1975-02-13 Programmable read only memory
JP1939975A JPS50120225A (en) 1974-02-15 1975-02-15

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7435842A FR2289026A2 (en) 1974-10-25 1974-10-25 Programmable fixed store using emitter coupled logic - has data stored in form of burned out resistors in transistor collector circuits

Publications (2)

Publication Number Publication Date
FR2289026A2 true FR2289026A2 (en) 1976-05-21
FR2289026B2 FR2289026B2 (en) 1977-03-18

Family

ID=9144444

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7435842A Granted FR2289026A2 (en) 1974-02-15 1974-10-25 Programmable fixed store using emitter coupled logic - has data stored in form of burned out resistors in transistor collector circuits

Country Status (1)

Country Link
FR (1) FR2289026A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1193330A (en) * 1967-12-11 1970-05-28 Int Computers Ltd Improvements in or relating to Permanent Memory System
GB1262865A (en) * 1968-05-27 1972-02-09 Plessey Co Ltd Improvements in or relating to storage arrangements
US3774171A (en) * 1971-11-08 1973-11-20 Honeywell Inf Systems Read only memory organization
US3798617A (en) * 1970-11-04 1974-03-19 Gen Instrument Corp Permanent storage memory and means for addressing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1193330A (en) * 1967-12-11 1970-05-28 Int Computers Ltd Improvements in or relating to Permanent Memory System
GB1262865A (en) * 1968-05-27 1972-02-09 Plessey Co Ltd Improvements in or relating to storage arrangements
US3798617A (en) * 1970-11-04 1974-03-19 Gen Instrument Corp Permanent storage memory and means for addressing
US3774171A (en) * 1971-11-08 1973-11-20 Honeywell Inf Systems Read only memory organization

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ARTICLE: "DESIGN CONSIDERATIONS FOR A HIGH-SPEED BIPOLAR READ-ONLY MEMORY", PAGES 196 - 202 BARRETT ET AUTRES *
PUBLICATION US: "PROCEEDINGS ON RELIABILITY PHYSICS" PUBLIE PAR L INSTITUT OF ELECTRICAL AND ELECTRONICS ENGINEERS", LAS VEGAS, 2 - 4 AVRIL 1974, ARTICLE: "RELIABILITY ASSESSMENT OF A SEMICONDUCTOR MEMORY BY DESIGN ANALYSIS", PAGES 74 - 81 BARNES ET THOMAS ) *
REVUE US : "IEEE JOURNAL OF SOLID-STATE CIRCUITS" VOLUME SC-5, NO. 5, OCTOBRE 1970 *

Also Published As

Publication number Publication date
FR2289026B2 (en) 1977-03-18

Similar Documents

Publication Publication Date Title
FR2369652A1 (en) Programmable transistor read only memory - has integrated matrix structure operating with low voltage pulses
GB1498741A (en) Programmable read-only memory
GB1399132A (en) Gas discharge devices
US3712772A (en) Control system for parison extruders
US2967952A (en) Semiconductor shift register
FR2289999A2 (en) Programmable fixed store using emitter coupled logic - has data stored in form of burned out resistors in transistor collector circuits
FR2261594A1 (en) Programmable fixed store using emitter coupled logic - has data stored in form of burned out resistors in transistor collector circuits
FR2289026A2 (en) Programmable fixed store using emitter coupled logic - has data stored in form of burned out resistors in transistor collector circuits
GB1174455A (en) Solid State Light Emitting Display with Memory.
WO1979000736A1 (en) Transistors
EP0059630B1 (en) Field programmable device
JPH0345478B2 (en)
EP0317323A3 (en) Programmable semiconductor memory
US3698012A (en) Multi-character electronic display
ES465450A1 (en) Display device having a matrix of gas discharge display elements
US3354435A (en) Transmission line control of transistor selection matrix
CA1001772A (en) Complementary bipolar transistors with iil type common base drivers
DE3888451D1 (en) Display device.
US3582911A (en) Core memory selection matrix
JPS52100239A (en) Multistylus electrodes recording
US3419887A (en) Character printer utilizing a rope memory
KR930017023A (en) Bipolar RAM Circuit
EP0317108A3 (en) Programmable active/passive cell structure
JPS54141532A (en) Mos transistor circuit
GB1327897A (en) Purification of gums

Legal Events

Date Code Title Description
CA Change of address
CD Change of name or company name