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SN66021

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SN66021 数据手册

SN66021

4-Channel Speech Controller

INTRODUCTION

SN66020 is a 20 seconds single chip 4-channel voice synthesizer IC which

contains I/O pins 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

20 seconds voice capacity are provided

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

provided

256*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)

Low Voltage Reset

March 8, 2001

12 3 4 5

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