W91412A Datasheet | Winbond

W91410 SERIES TONE/PULSE DIALER WITH SAVE FUNCTION GENERAL DESCRIPTION The W91410 series are monolithic ICs that provide the necessary signals for either pulse or tone dialing. The W91410 series feature a redial and save memory. Features - DTMF/Pulse switchable dialer - Two by 32 digits for redial and save 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 m S - Minimum intertone pause: 100 m S - On-chip power-on reset - Uses 3.579545 MHz crystal or ceramic resonator - Packaged in 18-pin plastic DIP - The different dialers in the W91410 series are shown in the following table: TYPE NO. PULSE (pp S) FLASH (m S) FLASH PAUSE (m S) W91412/A W91414/A W91416 10/20 10/20 10/20 600/300 73/100 600/300...