IL91210EN Datasheet (ETC) - TONE/PULSEDIALER

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 on-chip RAM for reading.

In the DTMF mode, minimum tone duration and minimum intertone pause are provided for rapid dialing.

Maximum tone du