JPS5658209A - Ferrite memory core for direct driving of ttl-ic - Google Patents

Ferrite memory core for direct driving of ttl-ic

Info

Publication number
JPS5658209A
JPS5658209A JP13378979A JP13378979A JPS5658209A JP S5658209 A JPS5658209 A JP S5658209A JP 13378979 A JP13378979 A JP 13378979A JP 13378979 A JP13378979 A JP 13378979A JP S5658209 A JPS5658209 A JP S5658209A
Authority
JP
Japan
Prior art keywords
memory core
constituted
core
ferrite
ttl
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
JP13378979A
Other languages
Japanese (ja)
Other versions
JPS5854489B2 (en
Inventor
Fujio Yamakawa
Masanori Kurahashi
Hiroyuki Ozawa
Takaaki Miyashita
Seiichi Yoshikawa
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.)
Iwaki Electronics Co Ltd
Original Assignee
Iwaki Electronics 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 Iwaki Electronics Co Ltd filed Critical Iwaki Electronics Co Ltd
Priority to JP54133789A priority Critical patent/JPS5854489B2/en
Publication of JPS5658209A publication Critical patent/JPS5658209A/en
Publication of JPS5854489B2 publication Critical patent/JPS5854489B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
    • H01F1/342—Oxides
    • H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)
  • Magnetic Ceramics (AREA)

Abstract

PURPOSE:To enable a memory core to be constituted of monolithic IC's or of hybrid IC's and to contrive to produce in a small size at a low cost by a method wherein the memory core is constituted having a prescribed shape and structure containing CoO for the improvement of temperature rise and Nb2O5 for the prevention of squarish deterioration. CONSTITUTION:A ferrite memory core is consisted of MnO:20-40mol%, ZnO:17- 25mol%, LiO2:3-7mol%, Fe2O3:40-55mol%, Nb2O5:1.0-3.0mol%, CoO:0.5- 2mol%, the shape exhibits a toroidal form having the outside diameter of 30mil, and is constituted to enable the switching by the driving current If of 150mA or less. By this way, the whole peripheral circuits of a core memory matrix can be consituted of monolithic IC's or of hybrid IC's, the device can be made in small size and at a low cost, and a ferrite memory core having a superior characteristic can be obtained.
JP54133789A 1979-10-17 1979-10-17 Ferrite memory core for TTL-IC direct drive Expired JPS5854489B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54133789A JPS5854489B2 (en) 1979-10-17 1979-10-17 Ferrite memory core for TTL-IC direct drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54133789A JPS5854489B2 (en) 1979-10-17 1979-10-17 Ferrite memory core for TTL-IC direct drive

Publications (2)

Publication Number Publication Date
JPS5658209A true JPS5658209A (en) 1981-05-21
JPS5854489B2 JPS5854489B2 (en) 1983-12-05

Family

ID=15113040

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54133789A Expired JPS5854489B2 (en) 1979-10-17 1979-10-17 Ferrite memory core for TTL-IC direct drive

Country Status (1)

Country Link
JP (1) JPS5854489B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194406A (en) * 1983-04-18 1984-11-05 Matsushita Electric Ind Co Ltd High permeability magnetic material
EP0763507A1 (en) * 1995-09-15 1997-03-19 SIEMENS MATSUSHITA COMPONENTS GmbH & CO. KG Manganese-zinc-ferrite

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4986455A (en) * 1972-12-22 1974-08-19
JPS5365875U (en) * 1976-11-04 1978-06-02

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4986455A (en) * 1972-12-22 1974-08-19
JPS5365875U (en) * 1976-11-04 1978-06-02

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59194406A (en) * 1983-04-18 1984-11-05 Matsushita Electric Ind Co Ltd High permeability magnetic material
EP0763507A1 (en) * 1995-09-15 1997-03-19 SIEMENS MATSUSHITA COMPONENTS GmbH & CO. KG Manganese-zinc-ferrite

Also Published As

Publication number Publication date
JPS5854489B2 (en) 1983-12-05

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