JPH0228147U - - Google Patents

Info

Publication number
JPH0228147U
JPH0228147U JP10714788U JP10714788U JPH0228147U JP H0228147 U JPH0228147 U JP H0228147U JP 10714788 U JP10714788 U JP 10714788U JP 10714788 U JP10714788 U JP 10714788U JP H0228147 U JPH0228147 U JP H0228147U
Authority
JP
Japan
Prior art keywords
microcomputer
signal
input
signal input
circuit
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
JP10714788U
Other languages
Japanese (ja)
Other versions
JPH0726753Y2 (en
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 JP1988107147U priority Critical patent/JPH0726753Y2/en
Publication of JPH0228147U publication Critical patent/JPH0228147U/ja
Application granted granted Critical
Publication of JPH0726753Y2 publication Critical patent/JPH0726753Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Power Sources (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Microcomputers (AREA)

Description

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

第１図は本考案一実施例の回路図、第２図は同
上の動作説明図である。 ＭＣはマイクロコンピユータ、Ｏ１は信号出力
端子、Ｋ１は信号入力端子、ＳＷは入力接点、Ｓ
Ｃはスイツチング回路である。 FIG. 1 is a circuit diagram of an embodiment of the present invention, and FIG. 2 is an explanatory diagram of the same operation. MC is a microcomputer, O1 is a signal output terminal, K1 is a signal input terminal, SW is an input contact, S
C is a switching circuit.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 電池駆動されるマイクロコンピユータの信号出
力端子から出力される読み取り用タイミング信号
に基づいて入力接点状態を検出して信号入力端子
に取り込むようにしたマイクロコンピユータの信
号入力回路において、読み取り用タイミング信号
をバイアス電圧として動作するスイツチング回路
の入力端に入力接点を接続し、上記スイツチング
回路出力をマイクロコンピユータの信号入力端子
に入力したことを特徴とするマイクロコンピユー
タの信号入力回路。 In the signal input circuit of a microcomputer that detects the input contact state based on the read timing signal output from the signal output terminal of a battery-powered microcomputer and inputs it to the signal input terminal, the read timing signal is biased. 1. A signal input circuit for a microcomputer, characterized in that an input contact is connected to an input end of a switching circuit that operates as a voltage, and the output of the switching circuit is inputted to a signal input terminal of the microcomputer.
JP1988107147U 1988-08-12 1988-08-12 Microcomputer signal input circuit Expired - Lifetime JPH0726753Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988107147U JPH0726753Y2 (en) 1988-08-12 1988-08-12 Microcomputer signal input circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988107147U JPH0726753Y2 (en) 1988-08-12 1988-08-12 Microcomputer signal input circuit

Publications (2)

Publication Number Publication Date
JPH0228147U true JPH0228147U (en) 1990-02-23
JPH0726753Y2 JPH0726753Y2 (en) 1995-06-14

Family

ID=31341299

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988107147U Expired - Lifetime JPH0726753Y2 (en) 1988-08-12 1988-08-12 Microcomputer signal input circuit

Country Status (1)

Country Link
JP (1) JPH0726753Y2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5463617A (en) * 1977-10-20 1979-05-22 Nec Corp Input circuit
JPS5884330A (en) * 1981-11-13 1983-05-20 Canon Inc Input circuit of microprocessor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5463617A (en) * 1977-10-20 1979-05-22 Nec Corp Input circuit
JPS5884330A (en) * 1981-11-13 1983-05-20 Canon Inc Input circuit of microprocessor

Also Published As

Publication number Publication date
JPH0726753Y2 (en) 1995-06-14

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