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NTE1691

Part Number	NTE1691
Manufacturer	NTE
Description	Integrated Circuit Telephone Pulse Dialer
Published	May 9, 2005
Detailed Description	NTE1691 & NTE1692 Integrated Circuit Telephone Pulse Dialer w/Redial Description: The NTE1691 and NTE1692 are monolithic...
Datasheet	NTE1691 PDF File

Overview

NTE1691 & NTE1692 Integrated Circuit Telephone Pulse Dialer w/Redial Description: The NTE1691 and NTE1692 are monolithic CMOS integrated circuits in an 18–Lead DIP type package that provide all the features required for implementing a pulse dialer with redial.
Functions: D Mute Output Logic “0” D Pulse Output Logic “0” D RC Oscillation for Reference Frequency D Designed to Operate Directly from the Telephone Line D Used CMOS Technology for Low Voltage, Low Power Operation D Power Up Clear Circuitry D NTE1691 Pin2: VREF D NTE1692 Pin2: Tone Out Features: D Uses Either a Standard 2 of 7 Matrix Keyboard with Negative True Common or the Inexpensive Form A–Type Keyboard D Make/Break Ratio Can Be ...

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