JPS5384633A - Memory system having redundancy memory cell - Google Patents

Memory system having redundancy memory cell

Info

Publication number
JPS5384633A
JPS5384633A JP15920876A JP15920876A JPS5384633A JP S5384633 A JPS5384633 A JP S5384633A JP 15920876 A JP15920876 A JP 15920876A JP 15920876 A JP15920876 A JP 15920876A JP S5384633 A JPS5384633 A JP S5384633A
Authority
JP
Japan
Prior art keywords
redundancy
memory
cell
memory cell
memory system
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
JP15920876A
Other languages
Japanese (ja)
Other versions
JPS5712240B2 (en
Inventor
Masaki Ogawa
Tadayasu Sugita
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP15920876A priority Critical patent/JPS5384633A/en
Publication of JPS5384633A publication Critical patent/JPS5384633A/en
Publication of JPS5712240B2 publication Critical patent/JPS5712240B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: By switching the system to a test mode and performing the test pervious to its operation or upon occasion, a troubled cell is switched to a perfect cell, thereby improving its availability.
COPYRIGHT: (C)1978,JPO&Japio
JP15920876A 1976-12-30 1976-12-30 Memory system having redundancy memory cell Granted JPS5384633A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15920876A JPS5384633A (en) 1976-12-30 1976-12-30 Memory system having redundancy memory cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15920876A JPS5384633A (en) 1976-12-30 1976-12-30 Memory system having redundancy memory cell

Publications (2)

Publication Number Publication Date
JPS5384633A true JPS5384633A (en) 1978-07-26
JPS5712240B2 JPS5712240B2 (en) 1982-03-09

Family

ID=15688673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15920876A Granted JPS5384633A (en) 1976-12-30 1976-12-30 Memory system having redundancy memory cell

Country Status (1)

Country Link
JP (1) JPS5384633A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6238599A (en) * 1985-08-13 1987-02-19 Mitsubishi Electric Corp Semiconductor memory device
JPH01109599A (en) * 1987-10-22 1989-04-26 Nec Corp Writable and erasable semiconductor memory device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6053382U (en) * 1983-09-21 1985-04-15 中部自動機株式会社 Device for sorting and removing garbage contained in paddy, brown rice, or polished rice supplied to the elevator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6238599A (en) * 1985-08-13 1987-02-19 Mitsubishi Electric Corp Semiconductor memory device
JPH01109599A (en) * 1987-10-22 1989-04-26 Nec Corp Writable and erasable semiconductor memory device

Also Published As

Publication number Publication date
JPS5712240B2 (en) 1982-03-09

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