W91513DLN

Preliminary W91510DN SERIES TONE/PULSE DIALER WITH RTC AND LCD DISPLAY FUNCTIONS GENERAL DESCRIPTION The W91510DN series ICs are Si-gate CMOS IC that provide the signals needed for either pulse or tone dialing. They feature a 12/16-digit LCD driver for displaying telephone numbers and calling time. A real time clock is included to display the time of day. The W91510DN series is fabricated using CMOS technology and thus provide good performance in low voltage, low power applications. FEATURES One by 32 digits for redial Uses 5 × 6 keyboard Pause, pulse-to-tone (*/T) can be stored as a digit in memory Flash can be stored as a digit in memory when in store mode Minimum tone output duration: 87 mS Minimum intertone pause: 87 mS Tone/pulse mode pin selectable Make/break ratio pin selectable Dialing rate: 10 ppS Pause time: 3.6 Sec. Flash break time (73 mS, 100 mS, 300 mS or 600 mS) selectable by keypad Built-in 12 or 16-digit LCD driver (1/4 ...