NL7513516A - Electronic calculator or digital processing system. - Google Patents

Electronic calculator or digital processing system.

Info

Publication number
NL7513516A
NL7513516A NL7513516A NL7513516A NL7513516A NL 7513516 A NL7513516 A NL 7513516A NL 7513516 A NL7513516 A NL 7513516A NL 7513516 A NL7513516 A NL 7513516A NL 7513516 A NL7513516 A NL 7513516A
Authority
NL
Netherlands
Prior art keywords
digital processing
electronic calculator
calculator
electronic
digital
Prior art date
Application number
NL7513516A
Other languages
Dutch (nl)
Original Assignee
Texas Instruments Inc
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
Priority to US05/525,236 priority Critical patent/US3991305A/en
Priority to US52524674A priority
Priority to US05/525,238 priority patent/US4021781A/en
Priority to US05/525,250 priority patent/US3988604A/en
Priority to US05/525,247 priority patent/US4021656A/en
Priority to US05/525,237 priority patent/US3989939A/en
Priority to US05/525,245 priority patent/US3955181A/en
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of NL7513516A publication Critical patent/NL7513516A/en

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C11/00Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor
    • G11C11/21Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements
    • G11C11/34Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices
    • G11C11/40Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors
    • G11C11/401Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells
    • G11C11/402Digital stores characterised by the use of particular electric or magnetic storage elements; Storage elements therefor using electric elements using semiconductor devices using transistors forming cells needing refreshing or charge regeneration, i.e. dynamic cells with charge regeneration individual to each memory cell, i.e. internal refresh
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00Details not covered by groups G06F3/00 – G06F13/00 and G06F21/00
    • G06F1/04Generating or distributing clock signals or signals derived directly therefrom
    • G06F1/06Clock generators producing several clock signals
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F15/00Digital computers in general; Data processing equipment in general
    • G06F15/02Digital computers in general; Data processing equipment in general manually operated with input through keyboard and computation using a built-in program, e.g. pocket calculators
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11CSTATIC STORES
    • G11C17/00Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards
    • G11C17/08Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements
    • G11C17/10Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM
    • G11C17/12Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards using semiconductor devices, e.g. bipolar elements in which contents are determined during manufacturing by a predetermined arrangement of coupling elements, e.g. mask-programmable ROM using field-effect devices
NL7513516A 1974-11-19 1975-11-19 Electronic calculator or digital processing system. NL7513516A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US52524674A true 1974-11-19 1974-11-19
US05/525,238 US4021781A (en) 1974-11-19 1974-11-19 Virtual ground read-only-memory for electronic calculator or digital processor
US05/525,250 US3988604A (en) 1974-11-19 1974-11-19 Electronic calculator or digital processor chip having multiple function arithmetic unit output
US05/525,247 US4021656A (en) 1974-11-19 1974-11-19 Data input for electronic calculator or digital processor chip
US05/525,237 US3989939A (en) 1974-11-19 1974-11-19 Electronic calculator or digital processor chip with combined functions for constant, keyboard and control bit
US05/525,236 US3991305A (en) 1974-11-19 1974-11-19 Electronic calculator or digital processor chip with multiple code combinations of display and keyboard scan outputs
US05/525,245 US3955181A (en) 1974-11-19 1974-11-19 Self-refreshing random access memory cell

Publications (1)

Publication Number Publication Date
NL7513516A true NL7513516A (en) 1976-05-21

Family

ID=27569826

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7513516A NL7513516A (en) 1974-11-19 1975-11-19 Electronic calculator or digital processing system.

Country Status (4)

Country Link
JP (1) JPS5173856A (en)
DE (1) DE2551852C2 (en)
FR (1) FR2292286B1 (en)
NL (1) NL7513516A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2401459B1 (en) * 1977-08-26 1980-04-25 Cii Honeywell Bull
JPS54106128A (en) * 1978-02-08 1979-08-20 Nec Corp Time-division display unit
JPH0126511B2 (en) * 1981-12-29 1989-05-24 Fujitsu Ltd

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
UST843614I4 (en) * 1969-07-22
GB1401204A (en) * 1971-07-19 1975-07-16 Texas Instruments Inc Variable function programmed calculator
US3781852A (en) * 1972-11-21 1973-12-25 Bowmar Instrument Corp Calculator display circuit
DK664473A (en) * 1973-09-24 1975-05-12 Texas Instruments Inc

Also Published As

Publication number Publication date
JPS5173856A (en) 1976-06-26
FR2292286B1 (en) 1983-01-21
DE2551852C2 (en) 1991-06-20
DE2551852A1 (en) 1976-05-20
FR2292286A1 (en) 1976-06-18

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
A85 Still pending on 85-01-01
BV The patent application has lapsed