JPS5449036A - Power supplying method to memory - Google Patents

Power supplying method to memory

Info

Publication number
JPS5449036A
JPS5449036A JP11587977A JP11587977A JPS5449036A JP S5449036 A JPS5449036 A JP S5449036A JP 11587977 A JP11587977 A JP 11587977A JP 11587977 A JP11587977 A JP 11587977A JP S5449036 A JPS5449036 A JP S5449036A
Authority
JP
Japan
Prior art keywords
card
array
voltage
memory
terminal
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
JP11587977A
Other languages
Japanese (ja)
Inventor
Moriyuki Takamura
Shohei Ikehara
Tokuji Furuto
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 JP11587977A priority Critical patent/JPS5449036A/en
Publication of JPS5449036A publication Critical patent/JPS5449036A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C5/00—Details of stores covered by group G11C11/00
    • G11C5/14—Power supply arrangements, e.g. power down, chip selection or deselection, layout of wirings or power grids, or multiple supply levels
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
    • G11C29/50—Marginal testing, e.g. race, voltage or current testing
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
    • G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
    • G11C29/50—Marginal testing, e.g. race, voltage or current testing
    • G11C2029/5004—Voltage

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Power Sources (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

PURPOSE:To simplify tests of the voltage tolerance of an array card simplex, by supplying sub-straight voltage VBB to an IC memory and by varying voltage VBB. CONSTITUTION:The output of DCV2 is led to card terminal 43 without supplying the output of DC-DC converter DCV2 for array card 3 directly to MOSIC memory array 1, and a sub-straight voltage is led from other terminal 44 to array 1. When card 3 is inserted into back board 5, terminals 43 and 44 are connected to backboard pins 63 and 64 and the short between pins 63 and 64 is caused by printed- circuit pattern 7. Inserting card 3 into board 5 leads the output of DCV to array 1, and for the purpose of tests of the array card simplex, the variable power supply supplies voltage VBB suitable for the test from terminal 44, so that the test and confirmation of the VBB-to-VDD voltage tolerance of card 3 will be made possible.
JP11587977A 1977-09-27 1977-09-27 Power supplying method to memory Pending JPS5449036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11587977A JPS5449036A (en) 1977-09-27 1977-09-27 Power supplying method to memory

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11587977A JPS5449036A (en) 1977-09-27 1977-09-27 Power supplying method to memory

Publications (1)

Publication Number Publication Date
JPS5449036A true JPS5449036A (en) 1979-04-18

Family

ID=14673425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11587977A Pending JPS5449036A (en) 1977-09-27 1977-09-27 Power supplying method to memory

Country Status (1)

Country Link
JP (1) JPS5449036A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57127536U (en) * 1981-01-30 1982-08-09
JPS58135098U (en) * 1982-03-02 1983-09-10 日本電気株式会社 Semiconductor memory card storage device
US4755902A (en) * 1983-01-31 1988-07-05 Canon Kabushiki Kaisha Electronic apparatus with detachable member arranged to detect erroneous mounting of the detachable member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57127536U (en) * 1981-01-30 1982-08-09
JPS58135098U (en) * 1982-03-02 1983-09-10 日本電気株式会社 Semiconductor memory card storage device
US4755902A (en) * 1983-01-31 1988-07-05 Canon Kabushiki Kaisha Electronic apparatus with detachable member arranged to detect erroneous mounting of the detachable member

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