SC91215

SC91214/91215 SERIES T/P SWITCHABLE DIALER WITH REDIAL HANDFREE FUNCTION DESCRIPTION The SC91214/15 Series is a single-chip, silicon gate, CMOS integrated circuit with an on-chip oscillator for a 3.58MHZ crystal or ceramic resonator. It provides a dialing pulse (DP) or dual tone multifrequency (DTMF) dialing. A standard 4 X4 matrix keyboard can be used to support either DP or DTMF modes. FEATURES * One touch redial operation * Tone/Pulse switchable * 32 digit capacity for redialing * Automatic mixed redialing (last number redial) of pulse to DTMF with multiple automatic access pauses * PABX auto-pause is 2.2 seconds ORDERING INFORMATION * DTMF Timing: Manual dialing: minimum duration for bursts and pauses Redialing: calibrated timing * Hands-Free control function * Wide operating voltage range: 2V to 5.5V * Key-in beep tone output Part SC91214/15A SC91214/15B SC91214/15C SC91214/15D Package DIP-16 Package DIP-18 Package DIP-18 Package DIP-20 Package * Digits dialed manuall...