IN5851 Datasheet - Integral

IN5851 PULSE DIALER WITH REDIAL

NAME VCC PIN 1 Positive supply pin. The voltage on this pin is measured relative to Pin 6 and is supplied from a 150µA current source. This voltage should be regulated to less than 6.0 volts using on external form or regulation. VREF 2 The VREF output provides reference voltage that tracks internal .

IN5851 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

IN5851 Datasheet (302.24 KB)