SNC342

Direct Drive Voice/Dual Tone Melody Controller

1 INTRODUCTION

SNC342 is a 1-channel voice synthesizer and dual-tone melody IC with PWM direct

drive circuit. It built-in a 4-bit tiny controller with one 4-bit input port and two 4-bit I/O

ports. By programming through the tiny controller in SNC342, user’s varied

applications including voice section combination, dual-tone melody, key trigger

arrangement, output control, and other logic functions can be easily implemented.

2 FEATURES

Single power supply 2.4V – 5.5V

16 seconds voice capacity are provided (@6KHZ sample rate)

Built in a 4-bit tiny controller

One 4-bit input port and two 4-bit I/O ports are provided

128*4 bits RAM are provided

52K*10 ROM size are provided for voice data and program

Maximum 16k program ROM is provided

Readable ROM code data

IR carrier signal is provided

Built in a high quality speech synthesizer

Adaptive playing speed from 2.5k-20kHz is provided

One voice channel plus Dual-Tone Melody

Built in a PWM Direct Drive circuit and a fixed current D/A output

System clock: 2MHz

Low Power Reset

Ver: 1.2

December 26, 2002

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