JPS5897638U - Bus type data input circuit - Google Patents

Bus type data input circuit

Info

Publication number
JPS5897638U
JPS5897638U JP19106781U JP19106781U JPS5897638U JP S5897638 U JPS5897638 U JP S5897638U JP 19106781 U JP19106781 U JP 19106781U JP 19106781 U JP19106781 U JP 19106781U JP S5897638 U JPS5897638 U JP S5897638U
Authority
JP
Japan
Prior art keywords
input circuit
data input
type data
bus type
lines
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
JP19106781U
Other languages
Japanese (ja)
Inventor
敏文 山本
Original Assignee
株式会社日立製作所
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 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP19106781U priority Critical patent/JPS5897638U/en
Publication of JPS5897638U publication Critical patent/JPS5897638U/en
Pending legal-status Critical Current

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  • Input From Keyboards Or The Like (AREA)
  • Use Of Switch Circuits For Exchanges And Methods Of Control Of Multiplex Exchanges (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 drawings]

第１図は、従来方式のバス方式データ入力回路の構成図
、第２図は、本考案によるバス方式データ入力回路の構
成図、である。 Ａ１・・・アドレス選択スイッチ、Ｓｉｊ・・・入力ス
イッチ、Ｄｉｊ・・・回り込み防止用ダイオード。FIG. 1 is a block diagram of a conventional bus type data input circuit, and FIG. 2 is a block diagram of a bus type data input circuit according to the present invention. A1... Address selection switch, Sij... Input switch, Dij... Diode for loop prevention.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] アドレス選択線、データ線を、マトリックス状に配線し
、その交点に、入力スイッチと、ダイオードを配置した
バス方式データ入力回路において、゛　アドレス選択線
のうち、選択されたアドレス線を第一の電位に、さらに
、選択されていない他のアドレス線を第二の電位に固定
したことを特徴とするバス方式データ入力回路。In a bus-type data input circuit in which address selection lines and data lines are wired in a matrix, and input switches and diodes are placed at the intersections of the lines, a selected one of the address selection lines is connected to a first potential. The bus type data input circuit is further characterized in that other unselected address lines are fixed at a second potential.
JP19106781U 1981-12-23 1981-12-23 Bus type data input circuit Pending JPS5897638U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19106781U JPS5897638U (en) 1981-12-23 1981-12-23 Bus type data input circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19106781U JPS5897638U (en) 1981-12-23 1981-12-23 Bus type data input circuit

Publications (1)

Publication Number Publication Date
JPS5897638U true JPS5897638U (en) 1983-07-02

Family

ID=30104551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19106781U Pending JPS5897638U (en) 1981-12-23 1981-12-23 Bus type data input circuit

Country Status (1)

Country Link
JP (1) JPS5897638U (en)

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