W91520N Overview
The W91520N series are Si-gate CMOS ICs that provide the necessary signals for tone or pulse dialing. The W91520N series provide one-key redial, handfree dialing, hold, save, and redial functions.
W91520N Key Features
- DTMF/pulse switchable dialer
- Two by 32-digit redial and save memory
- Pulse-to-tone (-/T) keypad for long distance call operation
- Uses 5 × 5 keyboard
- Easy operation with redial, flash, pause, and -/T keypads
- Pause, pulse-to-tone (-/T) can be stored as a digit in memory
- On-hook debounce time: 150 mS
- Dialing rate (10 ppS, or 20 ppS) selectable by bonding option
- Minimum tone output duration: 93 msec
- Minimum intertone pause: 93 msec