INTRODUCTION

SNC205 is a single channel voice synthesizer IC with PWM direct drive circuit. It built-in a 4-bit tiny controller with one 4-bit I/O port. By programming through the tiny controller in SNC205, user’s varied applications including voice section combination, key trigger arrangement, output control, and other logic functions can be easily implemented.

FEATURES

? Single power supply 2.4V – 5.5V

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

? Built in a 4-bit tiny controller

Where P3.2, P3.3 can direct drive LED (8mA for driving, 16mA for sink)

? One 4-bit I/O port is provided

? 32*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

? Built in a high quality speech synthesizer

? Adaptive playing speed from 2.5k-20kHz is provided

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

? 8-level volume control for PWM Direct Drive output

? System clock: 2MHz

? Low Power Reset