GENERAL DESCRIPTION

The W91460N series are Si-gate CMOS ICs that provide the necessary signals for either tone or pulse dialing. The W91460N series features save memory and 3 by 16-digit automatic dialing memory.

FEATURES

• DTMF/pulse switchable dialer

• Two by 32-digit redial and save memory

• Three by 16-digit one-touch direct memory

• Redial memory cascadable with normal dialing; dialing length is unlimited, but if length exceeds 32-digit the redial function is inhibited

• Pulse-to-tone (*/T) keypad for long distance call operation

• Uses 5 ´ 5 keyboard

• Easy operation with redial, flash, pause and */T keypads

• Flash, pause, P®T (pulse-to-tone) can be stored as a digit in memory

• Dialing rate (10, 20 ppS ) selected by bonding option

• On-hook debounce time: 150 msec.

• Minimum tone output duration: 93 msec.

• Minimum intertone pause: 93 msec.

• Flash break time (73, 100, 300, 600 msec.) selectable by keypad; pause time is 1.0 sec.

• On-chip power-on reset

• Uses 3.579545 MHz crystal or ceramic resonator

• Packaged in 18-pin plastic DIP

• The different dialers in the W91460N series are shown in the following table: