IL91210EN - ETC

IL91210EN TONE/PULSEDIALER

IL91210EN TONE/PULSEDIALER The IL91210EN is a single-chip, silicon gate, CMOS integrated circuit with an on-chip oscillator for a 3.58 MHz crystal or ceramic resonator. It provides dialing pulse (DP) or dual tone multi-frequency (DTMF) dialing. A standard 4x4 matrix keyboard can be used to support either DP or DTMF modes. Up to 32 digits can be saved in the .

Features

ing are cascadable and stored as additional digits for the next redialing
• Automatic mixed redialing (last number redial) of pulse to DTMF with multiple automatic access pauses
• Four extra function keys: flash, pause, redial and DP or DTMF mixed dialing
• Four-by-four (or 2 of 8) keyboard can be used
• Low standby current
• Dial Pulse Rate: 10 pps DC ELECTRICAL CHARACTERISTICS(V CC =3.5 V,F OSC=3.579 MHz, TOP=+25° C) Symbol Parameter Test Conditions Guaranteed Limits Min VCC VMR VOC VOR IOL1 IOL2 IMR ICCP ICCT ISBP ISBT DC Supply Voltage Minimum Memory Retention Voltage 2.0 1.0 Column Row V.