General Description

The HT9315 series tone/pulse dialers are CMOS LSIs for telecommunication systems. They are designed to meet various dialing specifications through resistor option matrix.

Features

 Universal specification

 Operating voltage: 2.0V~5.5V

 Low standby current

 Low memory retention current: 0.1A (Typ.)

 Tone/pulse switchable

 Interface with LCD driver

 32 digits for redialing

 32 digits for the SA memory dialing

 One-key redialing

 Pause and PT key for PBX

 45 keyboard matrix

 3.58MHz crystal or ceramic resonator

 Hand-free control