DESCRIPTION
The SC91310 series are monolithic ICs that provide the necessary signals for either pulse or tone dialing. The SC91310 series 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 4x4 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:100ms
*minimum intertone pause: 100ms
*On-chip power-on reset
*Uses 3.579545 MHz crystal or ceramic resonator
*Packaged in 18-pin plastic DIP