JPS52149037A - Control circuit of memory containing plural kinds of memory element - Google Patents

Control circuit of memory containing plural kinds of memory element

Info

Publication number
JPS52149037A
JPS52149037A JP6450076A JP6450076A JPS52149037A JP S52149037 A JPS52149037 A JP S52149037A JP 6450076 A JP6450076 A JP 6450076A JP 6450076 A JP6450076 A JP 6450076A JP S52149037 A JPS52149037 A JP S52149037A
Authority
JP
Japan
Prior art keywords
memory
control circuit
plural kinds
containing plural
memory element
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
JP6450076A
Other languages
Japanese (ja)
Inventor
Nobuo Yamada
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 JP6450076A priority Critical patent/JPS52149037A/en
Publication of JPS52149037A publication Critical patent/JPS52149037A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
    • G11C7/22—Read-write [R-W] timing or clocking circuits; Read-write [R-W] control signal generators or management 

Abstract

PURPOSE:To secure an easy recognition of the operation timing for the memory card of more than two kinds of operation specifications by mounting the card to an optional mounting position, and thus to have an automatic selection for the operation timing in order to ensure an interchangeability for the design.
JP6450076A 1976-06-04 1976-06-04 Control circuit of memory containing plural kinds of memory element Pending JPS52149037A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6450076A JPS52149037A (en) 1976-06-04 1976-06-04 Control circuit of memory containing plural kinds of memory element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6450076A JPS52149037A (en) 1976-06-04 1976-06-04 Control circuit of memory containing plural kinds of memory element

Publications (1)

Publication Number Publication Date
JPS52149037A true JPS52149037A (en) 1977-12-10

Family

ID=13259972

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6450076A Pending JPS52149037A (en) 1976-06-04 1976-06-04 Control circuit of memory containing plural kinds of memory element

Country Status (1)

Country Link
JP (1) JPS52149037A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55140959A (en) * 1979-04-20 1980-11-04 Hitachi Ltd Memory control system
US5301278A (en) * 1988-04-29 1994-04-05 International Business Machines Corporation Flexible dynamic memory controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55140959A (en) * 1979-04-20 1980-11-04 Hitachi Ltd Memory control system
US5301278A (en) * 1988-04-29 1994-04-05 International Business Machines Corporation Flexible dynamic memory controller

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