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