SM8230A Datasheet Tone Dialer

Manufacturer: Nippon Precision Circuits Inc

SM8230A tone dialer by Nippon Precision Circuits Inc - Datasheet Preview

Datasheet Details

Part number	SM8230A
Manufacturer	Nippon Precision Circuits Inc
File Size	56.31 KB
Description	Tone Dialer
Datasheet	SM8230A Datasheet

General Description

Number 1 2 3 4 5 6 7 8 Name SD SCL OE VSS CLK BZL BZH VDD I/O I I I – I O O – Serial data input Serial data transfer clock input.

(For valid transfer, OE must stay LOW for 16 clock cycles.) DTMF output enable/serial data transfer select input.

Serial data transfer is selected when LOW.

Overview

SM8230A 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.

Key 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, combined with its small package and low power dissipation, make the SM8230A a very use device to use. SD SCL OE VSS 1 8 VDD BZH BZL 8230AS 4 5 CLK.

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