W91321N Datasheet | Winbond

W91320N SERIES TONE/PULSE DIALER WITH HANDFREE LOCK AND HOLD FUNCTIONS GENERAL DESCRIPTION The W91320N series are Si-gate CMOS ICs that provide the necessary signals for tone or pulse dialing. The W91320N series provide one-key redial, handfree dialing, hold, redial, and lock functions. Features - DTMF/pulse switchable dialer - 32-digit redial 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 - 0 or 9 dialing inhibition pin for PABX system or long distance dialing lock out - Off-hook delay 300 m S in lock mode ( DP will keep low for 300 m S while off hook) - First key-in delay 300 m S output in lock mode - Dialing rate (10, 20 pp S ) selected by bonding option - Minimum tone output duration: 93 msec. - Minimum intertone pause: 93 msec. - Flash break time (73, 100, 300, 600 msec.) selectable by...