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