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SN6A297

LCD Controller with Voice/Dual Tone Melody

Sonix Technology Co., Ltd 

SN6A297

LCD Controller with Voice/Dual Tone Melody

„ INTRODUCTION

SN6A297 is a single chip voice/dual tone melody synthesizer IC with 8*40 direct

drive capability which contains two 4-bit I/O ports, one 4-bit output port and a

tiny controller. By programming through the tiny controller, user’s application

including LCD display, section combination, trigger modes, output status,

voice/melody playing and other logic functions and then be easily implemented.

„ FEATURES

Š Single power supply 2.4V – 5.1V

Š Built in a tiny controller

Š Two 4-bit I/O ports are provided, one 4-bit output ports are provided

Š 272*4 bits RAM for programming usage are provided (page0~15, m8~m15

of page18 and page21)

Š 80*4 bits RAM for LCD display usage are provided

Š Maximum 108k*10 program ROM is provided

Š Readable ROM code data

Š Built in direct 8*40 LCD driver

Š LCD 1/4 bias; 1/4 duty

Š Built in a high quality speech synthesizer

Š Adaptive playing speed from 2.5k-40kHz is provided

Š Built in a dual tone melody generator

Š Speech/Dual tone melody mixer is provided which SN6A297 can play

speech and dual tone melody simultaneously

Š Fixed current D/A output is provided to drive external connected transistor

for sound output

1

May 24, 2001

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