JPS6424432U - - Google Patents

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Publication number
JPS6424432U
JPS6424432U JP11942487U JP11942487U JPS6424432U JP S6424432 U JPS6424432 U JP S6424432U JP 11942487 U JP11942487 U JP 11942487U JP 11942487 U JP11942487 U JP 11942487U JP S6424432 U JPS6424432 U JP S6424432U
Authority
JP
Japan
Prior art keywords
oscillation
circuit
terminals
volatile memory
control signal
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
JP11942487U
Other languages
English (en)
Other versions
JPH054018Y2 (ja
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 filed Critical
Priority to JP1987119424U priority Critical patent/JPH054018Y2/ja
Publication of JPS6424432U publication Critical patent/JPS6424432U/ja
Application granted granted Critical
Publication of JPH054018Y2 publication Critical patent/JPH054018Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【図面の簡単な説明】
第1図は本考案の実施例を示す回路図、第2図
イ,ロは従来例を示す回路図である。 10…RC発振回路、17…セラミツク発振回
路、16,20…トランスミツシヨンゲート、2
2…EP―ROM、24…D―FF。

Claims (1)

    【実用新案登録請求の範囲】
  1. 発振素子が外部接続される2個の端子間に設け
    られた複数の異なつた形式の発振回路と、前記端
    子の一方と各々の発振回路の間に押入されたスイ
    ツチ回路と、該スイツチ回路のオン及びオフを制
    御する制御信号を出力する信号保持回路と、前記
    制御信号を発生するための情報が記憶された領域
    を有する不揮発性メモリ(EP―ROM)とを備
    え、前記不揮発性メモリの前記領域に記憶された
    情報に基いて、前記異なつた形式の発振回路のう
    ちの一つが選択されることを特徴とする発振形式
    切換回路。
JP1987119424U 1987-08-04 1987-08-04 Expired - Lifetime JPH054018Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987119424U JPH054018Y2 (ja) 1987-08-04 1987-08-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987119424U JPH054018Y2 (ja) 1987-08-04 1987-08-04

Publications (2)

Publication Number Publication Date
JPS6424432U true JPS6424432U (ja) 1989-02-09
JPH054018Y2 JPH054018Y2 (ja) 1993-02-01

Family

ID=31364641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987119424U Expired - Lifetime JPH054018Y2 (ja) 1987-08-04 1987-08-04

Country Status (1)

Country Link
JP (1) JPH054018Y2 (ja)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57127243U (ja) * 1981-01-07 1982-08-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57127243U (ja) * 1981-01-07 1982-08-07

Also Published As

Publication number Publication date
JPH054018Y2 (ja) 1993-02-01

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