GENERAL DESCRIPTION

The W91312N are monolithic ICs that provide the necessary signals for either pulse or tone dialing.

The W91312 N feature a redial memory.

FEATURES

·  DTMF/Pulse switchable dialer

·  32 digits for redial memory

·  Pulse-to-tone (P®T) keypad for long distance call operation

·  Break/Make ratio is selectable by pin option

·  Uses 4  ´4keyboard

·  Easy operation with redial, flash, pause, and P®T keypads

·  Pause, P®T (pulse-to-tone) can be stored as a digit in memory

·  Minimum tone output duration: 93 mS

·  Minimum intertone pause: 93 mS

·  On-chip power-on reset

·  Uses 3.579545 MHz crystal or ceramic resonator

·  Packaged in 18-pin plastic DIP