IL5851 Pulse Dialer with Redial

IK Semiconductor

Description

TECHNICAL DATA PULSE DIALER WITH REDIAL The IL5851 is a monolithic CMOS integrated circuit which uses an inexpensive RC oscillator for its frequency .
NAME VCC PIN 1 Positive supply pin.

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Datasheet Specifications

Part number: IL5851
Manufacturer: IK Semiconductor
File Size: 276.89 KB
Datasheet: IL5851_IKSemiconductor.pdf
Description: Pulse Dialer with Redial

Features

* required for implementing a pulse dialer with 32 digit redial.
* Wide operating voltage range (2.0~6.0V)
* Low power dissipation
* Use either a standard 2 of 7 matrix keyboard with negative true common or the inexpensive form A-type keyboard
* Make/Break ratio can be

Applications

* RC1-RC3 7,8,9 Oscillator The IL5851N contains on-chip inverters to provide oscillator which will operate with a minimum external components. Following figure shows the on-chip configuration with the necessary external components. Optimum stability occurs with the ration K=RS/R equal to 10 The oscil

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