JPS56119992A - Dynamic type fixed memory device - Google Patents

Dynamic type fixed memory device

Info

Publication number
JPS56119992A
JPS56119992A JP2371180A JP2371180A JPS56119992A JP S56119992 A JPS56119992 A JP S56119992A JP 2371180 A JP2371180 A JP 2371180A JP 2371180 A JP2371180 A JP 2371180A JP S56119992 A JPS56119992 A JP S56119992A
Authority
JP
Japan
Prior art keywords
dynamic type
circuit
rom
memory device
type fixed
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
JP2371180A
Other languages
Japanese (ja)
Inventor
Seiichi Hirai
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP2371180A priority Critical patent/JPS56119992A/en
Publication of JPS56119992A publication Critical patent/JPS56119992A/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

Landscapes

  • Read Only Memory (AREA)

Abstract

PURPOSE:To obtain a dynamic type ROM of high versatility by providing a required circuit for generating timing signal within a memory chip. CONSTITUTION:A chip of a small size such as a dynamic type ROM part 13, an output latching part 14 and the like is provided on the other hand with a clock generating circuit 11, a timing signal generating circuit 12, etc., and when adress information is sent from a microcomputer, a start signal CE inverts to a low level, and assumes respective steps 151... of a shift register forming the circuit 12, whereby setting is released. The timing signals synchronized with the clocks from the circuit 11 are generated from the predetermined stages by the successive shifting of the respective stages 151 and the ROM part 13 and the latching part 14 are controlled so that the memory contents of the ROM part 13 are read out in correspondence to the address information. Hence, there is no need for making the timing signals differing schema with respect to ROMs on the microcomputer side, and the versatility of the dynamic type fixed memory device is improved.
JP2371180A 1980-02-27 1980-02-27 Dynamic type fixed memory device Pending JPS56119992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2371180A JPS56119992A (en) 1980-02-27 1980-02-27 Dynamic type fixed memory device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2371180A JPS56119992A (en) 1980-02-27 1980-02-27 Dynamic type fixed memory device

Publications (1)

Publication Number Publication Date
JPS56119992A true JPS56119992A (en) 1981-09-19

Family

ID=12117922

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2371180A Pending JPS56119992A (en) 1980-02-27 1980-02-27 Dynamic type fixed memory device

Country Status (1)

Country Link
JP (1) JPS56119992A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63244389A (en) * 1987-03-31 1988-10-11 Toshiba Corp Semiconductor integrated circuit device
JPH08279281A (en) * 1994-08-26 1996-10-22 Sgs Thomson Microelectron Ltd Timing circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63244389A (en) * 1987-03-31 1988-10-11 Toshiba Corp Semiconductor integrated circuit device
JPH08279281A (en) * 1994-08-26 1996-10-22 Sgs Thomson Microelectron Ltd Timing circuit

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