SINGLE_CHIP_PULSE_TONE_DIALER

Published:2009/7/7 20:43:00 Author:May | From:SeekIC

The XR-75990 single-chip pulse/tone Dialer is a silicon gate CMOS circuit which performs both pulse and tone functions. It is designed to operate directly from the telephone line or on a separate small power supply. A 17-digit buffer is provided for redial feature.



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