INTRODUCTION

SN66268 is a 268 seconds single chip 4-channel voice synthesizer IC which contains I/O ports and a tiny controller. By programming through the tiny controller, user’s applications including section combination, trigger modes, output status, high performance melody, multiple voices, and other logic functions can be implemented.

FEATURES

? Single power supply 2.4V – 5.1V

? Built in a tiny controller

? 268 seconds voice capacity are provided

? One 4-bit input port, two 4-bit I/O ports and one 4-bit output port are provided

? 128*4 bits RAM are provided

? Maximum 64k program ROM is provided

? Readable ROM code data

? Built in a high quality speech synthesizer

? Four independent voice channels

? Adaptive playing speed from 4k-40kHz is provided for all 4 channels individually

? Automatic repetition for every channel

? A 6-bit*8-bit Multiplier is embed to modulate the volume of synthesized voices

? Two digital mixers (with saturation control) are provided

? Two 8-bit current output DA converters (Channel 1 + Channel 2 → DA1, Channel 3 + Channel 4 → DA2 )

? System clock: 2M Hz ( R-type or Crystal Option)