[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

JPS5427327A - Test circuit for memory - Google Patents

Test circuit for memory

Info

Publication number
JPS5427327A
JPS5427327A JP9137277A JP9137277A JPS5427327A JP S5427327 A JPS5427327 A JP S5427327A JP 9137277 A JP9137277 A JP 9137277A JP 9137277 A JP9137277 A JP 9137277A JP S5427327 A JPS5427327 A JP S5427327A
Authority
JP
Japan
Prior art keywords
memory
test circuit
read out
data read
series
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
JP9137277A
Other languages
Japanese (ja)
Other versions
JPS578559B2 (en
Inventor
Takeo Uchiyama
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 JP9137277A priority Critical patent/JPS5427327A/en
Publication of JPS5427327A publication Critical patent/JPS5427327A/en
Publication of JPS578559B2 publication Critical patent/JPS578559B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • For Increasing The Reliability Of Semiconductor Memories (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Test And Diagnosis Of Digital Computers (AREA)

Abstract

PURPOSE: To secure an easy detection even for the bit which is easily affected by the noise, by changing the address signals to be applied to the memory to be tested into the plural series and comparing the data read out based on the address signal of one series with the data read out normally.
COPYRIGHT: (C)1979,JPO&Japio
JP9137277A 1977-08-01 1977-08-01 Test circuit for memory Granted JPS5427327A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9137277A JPS5427327A (en) 1977-08-01 1977-08-01 Test circuit for memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9137277A JPS5427327A (en) 1977-08-01 1977-08-01 Test circuit for memory

Publications (2)

Publication Number Publication Date
JPS5427327A true JPS5427327A (en) 1979-03-01
JPS578559B2 JPS578559B2 (en) 1982-02-17

Family

ID=14024536

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9137277A Granted JPS5427327A (en) 1977-08-01 1977-08-01 Test circuit for memory

Country Status (1)

Country Link
JP (1) JPS5427327A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04135658U (en) * 1991-06-06 1992-12-17 株式会社イナツクス Ceiling panel mounting structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04135658U (en) * 1991-06-06 1992-12-17 株式会社イナツクス Ceiling panel mounting structure

Also Published As

Publication number Publication date
JPS578559B2 (en) 1982-02-17

Similar Documents

Publication Publication Date Title
JPS52142936A (en) Semiconductor memory circuit
JPS5333542A (en) Signal detection circuit
JPS5427327A (en) Test circuit for memory
JPS55154415A (en) Incidental phenomenon recorder
JPS5429936A (en) Pre-amplifier
JPS55163697A (en) Memory device
JPS5247752A (en) Device for reading the maximum and minimum values of peak values of an alog signals
JPS5629879A (en) Recording and reproduction method
JPS53132244A (en) Test and control unit for extendable microprogram
JPS55108996A (en) Memory test system
JPS5495141A (en) Fault detector
JPS5390724A (en) Recording system for information recording substance
JPS5211967A (en) Micro-signal detecting circuit
JPS53145431A (en) Test method for memory
JPS5363830A (en) Error detection correcting system
JPS5376710A (en) Card detection device
JPS5287009A (en) Signal detection system of magnetic memory unit
JPS5387714A (en) Trouble detecting system
JPS5677748A (en) Signal processor for fourier conversion nuclear magnetism resonator
JPS53135536A (en) Test method for data processor
JPS5442940A (en) Start signal regenerating circuit for memory device
JPS53115482A (en) Trouble detecting device for electronic instruments for process control
JPS54612A (en) Testing system of magnetic recording medium
JPS5231625A (en) Memory test method
JPS53137632A (en) Binarizing system for read-in signal