W91472N

W91472N SERIES 6-MEMORY TONE/PULSE DIALER WITH SAVE AND HANDFREE FUNCTIONS GENERAL DESCRIPTION The W91472N series are tone/pulse switchable telephone dialers with five memories, save memory, and handfree dialing control. These chips are fabricated using Winbond's high-performance CMOS technology and thus offer good performance in low-voltage and low-power operations. FEATURES DTMF/pulse switchable dialer Two by 32 digit redial and save memory Five by 16 digit one-touch direct repertory memory Pulse-to-tone (*/T) keypad for long distance call operation Cascaded dialing Uses 5 × 6 keyboard Easy operation with redial, flash, pause, and */T keypads Pause, P→T (pulse-to-tone) can be stored as a digit in memory Dialing rate (10 ppS or 20 ppS) selectable by bonding option On-hook debounce time: 150 mS Minimum tone output duration: 93 mS Minimum intertone pause: 93 mS Pause time: 3.6 sec. Flash break time (73 mS, 100 mS, 300 mS, ...