The W91310 series are monolithic ICs that provide the necessary signals for either pulse or tone dialing. The W91310 series features 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 × 4 keyboard
•Easy operation with redial, flash, pause, and P→T keypads
•Flash, pause, P→T (pulse-to-tone) can be stored as a digit in memory
•Minimum tone output duration: 100 mS
•Minimum intertone pause: 100 mS
•On-chip power-on reset
•Uses 3.579545 MHz crystal or ceramic resonator
•Packaged in 18-pin plastic DIP