JPS5244123A - Fixed memory circuit - Google Patents

Fixed memory circuit

Info

Publication number
JPS5244123A
JPS5244123A JP11975475A JP11975475A JPS5244123A JP S5244123 A JPS5244123 A JP S5244123A JP 11975475 A JP11975475 A JP 11975475A JP 11975475 A JP11975475 A JP 11975475A JP S5244123 A JPS5244123 A JP S5244123A
Authority
JP
Japan
Prior art keywords
memory circuit
fixed memory
misreading
fet
accelerated
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
JP11975475A
Other languages
Japanese (ja)
Other versions
JPS5830678B2 (en
Inventor
Kenzo Masuda
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP50119754A priority Critical patent/JPS5830678B2/en
Publication of JPS5244123A publication Critical patent/JPS5244123A/en
Publication of JPS5830678B2 publication Critical patent/JPS5830678B2/en
Expired 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
    • G11C17/10—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM
    • G11C17/12—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM using field-effect devices
    • G11C17/123—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM using field-effect devices comprising cells having several storage transistors connected in series

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Read Only Memory (AREA)

Abstract

PURPOSE:The output line of the memory cell in which a number of FET's are connected in series is accelerated for its precharge time. As a result, the readout velocity is increased as well as misreading can be avoided.
JP50119754A 1975-10-06 1975-10-06 Fixed memory circuit Expired JPS5830678B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP50119754A JPS5830678B2 (en) 1975-10-06 1975-10-06 Fixed memory circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP50119754A JPS5830678B2 (en) 1975-10-06 1975-10-06 Fixed memory circuit

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP59040331A Division JPS59188894A (en) 1984-03-05 1984-03-05 Fixed memory circuit

Publications (2)

Publication Number Publication Date
JPS5244123A true JPS5244123A (en) 1977-04-06
JPS5830678B2 JPS5830678B2 (en) 1983-06-30

Family

ID=14769321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50119754A Expired JPS5830678B2 (en) 1975-10-06 1975-10-06 Fixed memory circuit

Country Status (1)

Country Link
JP (1) JPS5830678B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750390A (en) * 1980-09-10 1982-03-24 Seiko Epson Corp Read-only memory
JPS6218899U (en) * 1986-07-10 1987-02-04

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750390A (en) * 1980-09-10 1982-03-24 Seiko Epson Corp Read-only memory
JPS6218899U (en) * 1986-07-10 1987-02-04

Also Published As

Publication number Publication date
JPS5830678B2 (en) 1983-06-30

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