SM8230A Datasheet | Nippon Precision Circuits Inc

NIPPON PRECISION CIRCUITS INC. Tone Dialer with Built-in Piezo Driver PINOUT OVERVIEW The SM8230A is a dual-tone signal generator LSI developed for DTMF (dual tone multi-frequency) dialing. It Features a built-in piezo-electric speaker driver for direct connection to a piezo-electric buzzer. The DTMF frequencies can be set to correspond to the DTMF standards of any country. The output level is also adjustable under software control. These Features , bined with its small package and low power dissipation, make the SM8230A a very use device to use. SD SCL OE VSS VDD BZH BZL 8230AS PACKAGE DIMENSIONS Features s s s s s s s 3-line serial interface to...