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W91210 SERIES
TONE/PULSE DIALER WITH REDIAL FUNCTION
GENERAL DESCRIPTION
The W91210 series are Si-gate CMOS ICs that provide the necessary signals for either pulse or tone dialing. The W91210 series features a redial function.
FEATURES
• DTMF/Pulse switchable dialer • One by 32 digits for redial memory • Pulse-to-tone (*/T) keypad for long distance call operation • Uses 4 × 4 keyboard • Easy operation with redial, flash, pause, and */T keypads • Pause, P→T (pulse-to-tone) can be stored as a digit in memory • Minimum tone output duration: 87 mS • Minimum intertone pause: 87 mS • Flash time (100 mS, 300 mS or 600 mS) selectable by keypad • Pause time 3.6 sec or 2.0 sec • On-chip power-on reset • Uses 3.
W91210 Datasheet
