JPS58155025U - Random access memory storage content protection device - Google Patents

Random access memory storage content protection device

Info

Publication number
JPS58155025U
JPS58155025U JP5054282U JP5054282U JPS58155025U JP S58155025 U JPS58155025 U JP S58155025U JP 5054282 U JP5054282 U JP 5054282U JP 5054282 U JP5054282 U JP 5054282U JP S58155025 U JPS58155025 U JP S58155025U
Authority
JP
Japan
Prior art keywords
random access
access memory
protection device
content protection
storage content
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
JP5054282U
Other languages
Japanese (ja)
Inventor
浩 樋口
Original Assignee
大和製衡株式会社
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 大和製衡株式会社 filed Critical 大和製衡株式会社
Priority to JP5054282U priority Critical patent/JPS58155025U/en
Publication of JPS58155025U publication Critical patent/JPS58155025U/en
Pending legal-status Critical Current

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  • Power Sources (AREA)
  • Techniques For Improving Reliability Of Storages (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は従来のランダムアクセスメモリの記憶内容保護
装置の回路図、第２図はこの考案によるランダムアクセ
スメモリの保護装置の回路図である。 １０・・・・・・ランダムアクセスメモリ、１２．１２
・・・・・・給電端子、２６．２８・・・・・・電池、
３０．３２・・・・・・逆流阻止ダイオード。FIG. 1 is a circuit diagram of a conventional random access memory storage content protection device, and FIG. 2 is a circuit diagram of a random access memory protection device according to this invention. 10...Random access memory, 12.12
......Power supply terminal, 26.28...Battery,
30.32...Reverse current blocking diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 給電端子に接続されたランダムアクセスメモリと、この
メモリに並列に接続されておりそれぞれ電池および逆流
阻止ダイオードからなる複数の直列回路とを具備するラ
ンダムアクセスメモリの記憶内容保護装置。A storage content protection device for a random access memory, comprising a random access memory connected to a power supply terminal, and a plurality of series circuits each consisting of a battery and a reverse current blocking diode, each connected in parallel to the random access memory.
JP5054282U 1982-04-06 1982-04-06 Random access memory storage content protection device Pending JPS58155025U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5054282U JPS58155025U (en) 1982-04-06 1982-04-06 Random access memory storage content protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5054282U JPS58155025U (en) 1982-04-06 1982-04-06 Random access memory storage content protection device

Publications (1)

Publication Number Publication Date
JPS58155025U true JPS58155025U (en) 1983-10-17

Family

ID=30061334

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5054282U Pending JPS58155025U (en) 1982-04-06 1982-04-06 Random access memory storage content protection device

Country Status (1)

Country Link
JP (1) JPS58155025U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57203119A (en) * 1981-06-09 1982-12-13 Mitsubishi Electric Corp Storage hold device using battery for cmos memory

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57203119A (en) * 1981-06-09 1982-12-13 Mitsubishi Electric Corp Storage hold device using battery for cmos memory

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