W91312A Overview
The W91310 series are monolithic ICs that provide the necessary signals for either pulse or tone dialing.
W91312A Key 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