W91331N Overview
The W91330N series are Si-gate CMOS ICs that provide the necessary signals for tone or pulse dialing.
W91331N Key Features
- DTMF/pulse switchable dialer
- 32-digit redial memory
- Pulse-to-tone (-/T) keypad for long distance call operation
- Uses 5 × 4 keyboard
- Easy operation with redial, flash, pause, and -/T keypads
- Pause, pulse-to-tone (-/T) can be stored as a digit in memory
- 0 or 9 dialing inhibition pin for PABX system or long distance dialing lock out
- Off-hook delay 300 mS in lock mode ( DP will keep low for 300 mS low while off hook)
- First key-in delay 300 mS output in lock mode
- Dialing rate (10, 20 ppS ) selected by bonding option