W91212 Description
The W91210 series are Si-gate CMOS ICs that provide the necessary signals for either pulse or tone dialing.
W91212 Key Features
- DTMF/Pulse switchable dialer
- One by 32 digits for redial memory
- Pulse-to-tone (-/T) keypad for long distance call operation
- Uses 4 × 4 keyboard
- Easy operation with redial, flash, pause, and -/T keypads
- Pause, P→T (pulse-to-tone) can be stored as a digit in memory
- Minimum tone output duration: 87 mS
- Minimum intertone pause: 87 mS
- Flash time (100 mS, 300 mS or 600 mS) selectable by keypad
- Pause time 3.6 sec or 2.0 sec