JPS5380931A - Semiconductor lead-only memory - Google Patents

Semiconductor lead-only memory

Info

Publication number
JPS5380931A
JPS5380931A JP15649376A JP15649376A JPS5380931A JP S5380931 A JPS5380931 A JP S5380931A JP 15649376 A JP15649376 A JP 15649376A JP 15649376 A JP15649376 A JP 15649376A JP S5380931 A JPS5380931 A JP S5380931A
Authority
JP
Japan
Prior art keywords
memory
semiconductor lead
plural groups
compounding
dividing
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
JP15649376A
Other languages
Japanese (ja)
Inventor
Hideo Hara
Haruo Keida
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 JP15649376A priority Critical patent/JPS5380931A/en
Publication of JPS5380931A publication Critical patent/JPS5380931A/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
    • 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:To obtain a semiconductor ROM which realizes a high-speed access time through a simple structure, by dividing the serial-connected MOSFET into plural groups and compounding the output signals sent from the plural groups later.
JP15649376A 1976-12-27 1976-12-27 Semiconductor lead-only memory Pending JPS5380931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15649376A JPS5380931A (en) 1976-12-27 1976-12-27 Semiconductor lead-only memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15649376A JPS5380931A (en) 1976-12-27 1976-12-27 Semiconductor lead-only memory

Related Child Applications (2)

Application Number Title Priority Date Filing Date
JP58213961A Division JPS6045509B2 (en) 1983-11-16 1983-11-16 Semiconductor read-only memory
JP59192504A Division JPS60101798A (en) 1984-09-17 1984-09-17 Semiconductor read-only memory

Publications (1)

Publication Number Publication Date
JPS5380931A true JPS5380931A (en) 1978-07-17

Family

ID=15628949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15649376A Pending JPS5380931A (en) 1976-12-27 1976-12-27 Semiconductor lead-only memory

Country Status (1)

Country Link
JP (1) JPS5380931A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5552593A (en) * 1978-10-11 1980-04-17 Nec Corp Memory unit
JPS5637434U (en) * 1979-08-31 1981-04-09
JPS5647996A (en) * 1979-09-20 1981-04-30 Chiyou Lsi Gijutsu Kenkyu Kumiai Semiconductor memory device
JPS5771589A (en) * 1980-10-20 1982-05-04 Sanyo Electric Co Ltd Memory exclusively used for read-out of semiconductor
JPS6172556A (en) * 1984-09-17 1986-04-14 Casio Comput Co Ltd pattern data processing device
JPS62106399U (en) * 1985-12-20 1987-07-07

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5552593A (en) * 1978-10-11 1980-04-17 Nec Corp Memory unit
JPS5637434U (en) * 1979-08-31 1981-04-09
JPS5647996A (en) * 1979-09-20 1981-04-30 Chiyou Lsi Gijutsu Kenkyu Kumiai Semiconductor memory device
JPS5771589A (en) * 1980-10-20 1982-05-04 Sanyo Electric Co Ltd Memory exclusively used for read-out of semiconductor
JPS6172556A (en) * 1984-09-17 1986-04-14 Casio Comput Co Ltd pattern data processing device
JPS62106399U (en) * 1985-12-20 1987-07-07

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