SN52020 Ver la hoja de datos (PDF) - Sonix Technology Co., Ltd

Número de pieza

componentes Descripción

Fabricante

SN52020

2-Channel Speech Controller

Sonix Technology Co., Ltd 

3. Block Diagram

SN52020

2-Channel Speech Controller

ROM

Program/Speech/Instrument waveform

Address Pointer

Timing

OSC

PC/Data Pointer/Stack/Speech Pointer Generator

SRAM

Sampling Rate

Timer

ALU

IO3

WDT

Voice

Synthesizer

Push Pull

4. PIN ASSIGNMENT

Symbol

P33, P32, P31, P30

VDD

GND

OSC/XIN

XOUT

CKSEL

BUO1

BUO2

RST

I/O Function Description

I/O Bit3 ~ Bit0 of I/O port 3

I Positive power supply

I Negative power supply

I Oscillator / Crystal In

O Crystal Out / 1Khz output

I Clock type select

‘L’ or floating → RC oscillator

‘H’ →Crystal

O Positive Output of Push Pull

O Negative Output of Push Pull

I RST=1 Reset Chip (Active H)

Ver: 1.0

4

March 2,2005

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