13 Memory Tone/Pulse Dialer with Handfree and Hold Function

The IN91350A is a silicon CMOS IC that provide necessary signal for either Pulse or Tone dialing. It features Handfree dialing, Hold, and 13 by 16 digits automatic dialing memory.

• DTMF/PULSE switchable dialer
• 32 digits for Redial memory
• Three by 16 digits for one touch direct repertory
• Ten by 16 digits for two touch indirect repertory
• Mix dialing is allowable, and the dialing length is unlimited
• Pulse to Tone (*/T) keypad for Long Distance Call operation
• Easy operation with Redial, Flash, Pause and */T keypads
• Pause, P- - >T (Pulse to Tone) can be stored as a digit in memory
• Flash time 600 mS
• 4 x 5 keyboard can be used
• Power on reset on chip
• Use 3.579545 MHz crystal or ceramic resonator
• Dial Pulse Rate: 10 pps