JPS55132597A - Write-in unit for prom information - Google Patents

Write-in unit for prom information

Info

Publication number
JPS55132597A
JPS55132597A JP4066679A JP4066679A JPS55132597A JP S55132597 A JPS55132597 A JP S55132597A JP 4066679 A JP4066679 A JP 4066679A JP 4066679 A JP4066679 A JP 4066679A JP S55132597 A JPS55132597 A JP S55132597A
Authority
JP
Japan
Prior art keywords
write
information
memory
prom7
readout
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.)
Granted
Application number
JP4066679A
Other languages
Japanese (ja)
Other versions
JPS6138557B2 (en
Inventor
Kazuo Kuno
Akira Kato
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 JP4066679A priority Critical patent/JPS55132597A/en
Publication of JPS55132597A publication Critical patent/JPS55132597A/en
Publication of JPS6138557B2 publication Critical patent/JPS6138557B2/ja
Granted 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
    • G11C17/14—Read-only memories programmable only once; Semi-permanent stores, e.g. manually-replaceable information cards in which contents are determined by selectively establishing, breaking or modifying connecting links by permanently altering the state of coupling elements, e.g. PROM

Landscapes

  • Read Only Memory (AREA)

Abstract

PURPOSE:To increase the write-in rate to memory element of PROM and to reduce the write-in time and information confirming time after write-in, by providing the memory and information number register having the address information section in pair with the write-in information. CONSTITUTION:The output of the binary counter 1 is given to the memory 2' storing a plurality of pairs of information consisting of the address information and write-in information as the address input, and the address information readout from the memory 2' is fed to write-in PROM7. Further, the write-in information readout from the memory 2' is converted 3 into information write-in standard of PROM7 to detect 4 that the readout output of PROM7 after write-in is not in matching with the write-in information stored in the memory 2'. Further, the content of the register 6' storing the number of information pairs and the content of the counter 1 are in agreement, then stop signal is fed to the counter 1.
JP4066679A 1979-04-04 1979-04-04 Write-in unit for prom information Granted JPS55132597A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4066679A JPS55132597A (en) 1979-04-04 1979-04-04 Write-in unit for prom information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4066679A JPS55132597A (en) 1979-04-04 1979-04-04 Write-in unit for prom information

Publications (2)

Publication Number Publication Date
JPS55132597A true JPS55132597A (en) 1980-10-15
JPS6138557B2 JPS6138557B2 (en) 1986-08-29

Family

ID=12586847

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4066679A Granted JPS55132597A (en) 1979-04-04 1979-04-04 Write-in unit for prom information

Country Status (1)

Country Link
JP (1) JPS55132597A (en)

Also Published As

Publication number Publication date
JPS6138557B2 (en) 1986-08-29

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