آی سی W91312

IC W91312

GENERAL DESCRIPTION

The W91310 series are monolithic ICs that provide the necessary signals for either pulse or tone

dialing. The W91310 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 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

· The different dialers in the W91310 series are shown in the following table