JPS543439A - Chip selection control system - Google Patents

Chip selection control system

Info

Publication number
JPS543439A
JPS543439A JP6785377A JP6785377A JPS543439A JP S543439 A JPS543439 A JP S543439A JP 6785377 A JP6785377 A JP 6785377A JP 6785377 A JP6785377 A JP 6785377A JP S543439 A JPS543439 A JP S543439A
Authority
JP
Japan
Prior art keywords
selection control
control system
chip selection
chip
designation
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
JP6785377A
Other languages
Japanese (ja)
Inventor
Toru Yamamura
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP6785377A priority Critical patent/JPS543439A/en
Publication of JPS543439A publication Critical patent/JPS543439A/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
    • G11C17/08—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements

Landscapes

  • Static Random-Access Memory (AREA)
  • Read Only Memory (AREA)

Abstract

PURPOSE:To reduce the number of the processes for production of the mask as well as to secure a facilitated control, by performing the selection designation for the chip through designation of the ROM code and constituting the chip selection control circuit with the same circuit.
JP6785377A 1977-06-10 1977-06-10 Chip selection control system Pending JPS543439A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6785377A JPS543439A (en) 1977-06-10 1977-06-10 Chip selection control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6785377A JPS543439A (en) 1977-06-10 1977-06-10 Chip selection control system

Publications (1)

Publication Number Publication Date
JPS543439A true JPS543439A (en) 1979-01-11

Family

ID=13356917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6785377A Pending JPS543439A (en) 1977-06-10 1977-06-10 Chip selection control system

Country Status (1)

Country Link
JP (1) JPS543439A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63183684A (en) * 1987-01-26 1988-07-29 Nec Corp Semiconductor device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63183684A (en) * 1987-01-26 1988-07-29 Nec Corp Semiconductor device

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