IT1148973B - Rivelatore di cancellatura per memorie a sola lettura programmabili cancellabili - Google Patents

Rivelatore di cancellatura per memorie a sola lettura programmabili cancellabili

Info

Publication number
IT1148973B
IT1148973B IT48708/82A IT4870882A IT1148973B IT 1148973 B IT1148973 B IT 1148973B IT 48708/82 A IT48708/82 A IT 48708/82A IT 4870882 A IT4870882 A IT 4870882A IT 1148973 B IT1148973 B IT 1148973B
Authority
IT
Italy
Prior art keywords
deletable
memories
cancellation detector
readable programmable
programmable
Prior art date
Application number
IT48708/82A
Other languages
English (en)
Other versions
IT8248708A0 (it
Inventor
Anil Cercekci
Original Assignee
Motorola 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
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of IT8248708A0 publication Critical patent/IT8248708A0/it
Application granted granted Critical
Publication of IT1148973B publication Critical patent/IT1148973B/it

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C16/00—Erasable programmable read-only memories
    • G11C16/02—Erasable programmable read-only memories electrically programmable
    • G11C16/06—Auxiliary circuits, e.g. for writing into memory
    • G11C16/22—Safety or protection circuits preventing unauthorised or accidental access to memory cells
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11C—STATIC STORES
    • G11C16/00—Erasable programmable read-only memories
    • G11C16/02—Erasable programmable read-only memories electrically programmable
    • G11C16/06—Auxiliary circuits, e.g. for writing into memory
    • G11C16/10—Programming or data input circuits
    • G11C16/14—Circuits for erasing electrically, e.g. erase voltage switching circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Storage Device Security (AREA)
  • Read Only Memory (AREA)
IT48708/82A 1981-07-10 1982-06-25 Rivelatore di cancellatura per memorie a sola lettura programmabili cancellabili IT1148973B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/282,196 US4394750A (en) 1981-07-10 1981-07-10 Prom erase detector

Publications (2)

Publication Number Publication Date
IT8248708A0 IT8248708A0 (it) 1982-06-25
IT1148973B true IT1148973B (it) 1986-12-03

Family

ID=23080473

Family Applications (1)

Application Number Title Priority Date Filing Date
IT48708/82A IT1148973B (it) 1981-07-10 1982-06-25 Rivelatore di cancellatura per memorie a sola lettura programmabili cancellabili

Country Status (9)

Country Link
US (1) US4394750A (it)
EP (1) EP0083626B1 (it)
JP (1) JPS58501098A (it)
BR (1) BR8207782A (it)
CA (1) CA1182217A (it)
DE (1) DE3279817D1 (it)
IT (1) IT1148973B (it)
SG (1) SG86391G (it)
WO (1) WO1983000254A1 (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4887239A (en) * 1985-03-04 1989-12-12 Lattice Semiconductor Corporation One-time programmable data security system for programmable logic device
FR2786911A1 (fr) * 1998-12-02 2000-06-09 St Microelectronics Sa Memoire eeprom securisee comportant des moyens de detection d'effacement par uv
US9263937B2 (en) * 2013-12-11 2016-02-16 Monolithic Power Systems, Inc. Short protection circuit for power switch and associated protection method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5193638A (it) * 1975-02-14 1976-08-17
FR2311360A1 (fr) * 1975-05-13 1976-12-10 Innovation Ste Int Systeme pour memoriser des donnees de maniere confidentielle au moyen d'objets portatifs electroniques comportant un circuit de memorisation des erreurs de code confidentiel
DE2828855C2 (de) * 1978-06-30 1982-11-18 Siemens AG, 1000 Berlin und 8000 München Wortweise elektrisch umprogrammierbarer, nichtflüchtiger Speicher sowie Verfahren zum Löschen bzw. Einschreiben eines bzw. in einen solchen Speicher(s)
JPS5693363A (en) * 1979-12-04 1981-07-28 Fujitsu Ltd Semiconductor memory

Also Published As

Publication number Publication date
JPS6364840B2 (it) 1988-12-13
DE3279817D1 (en) 1989-08-17
EP0083626B1 (en) 1989-07-12
SG86391G (en) 1991-11-22
EP0083626A4 (en) 1986-08-21
BR8207782A (pt) 1983-06-21
WO1983000254A1 (en) 1983-01-20
US4394750A (en) 1983-07-19
EP0083626A1 (en) 1983-07-20
CA1182217A (en) 1985-02-05
IT8248708A0 (it) 1982-06-25
JPS58501098A (ja) 1983-07-07

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Legal Events

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960607