SNC688 查看數據表（PDF） - Sonix Technology Co., Ltd

零件编号

产品描述 (功能)

生产厂家

SNC688

4-Channel Speech Controller

Sonix Technology Co., Ltd 

3. Block Diagram

SNC688

4-Channel Speech Controller

ROM

Program/Speech/Melody/Instrument waveform

184K ×12 bits

Address Pointers/ STACK

Timing

Generator

OSC

SRAM (256 nibbles)

Sampling Rate Counter × 4

Timer

IO1

ALU

Voice

Synthesizer

Volume

Control

PWM

IO2

IO3

IO4

IO5

IO6

8bit D/A

4. PIN ASSIGNMENT

Symbol

P13 ~ P10

P23 ~ P20

P33 ~ P30

P43 ~ P40

P53 ~ P50

P63 ~ P60

VDD

GND

XIN

RST

XOUT/OSC

CKSEL

BUO1/VO1

BUO2/VO2

I/O Function Description

I/O Bit3 ~ Bit0 of I/O port 1

I/O Bit3 ~ Bit0 of I/O port 2

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

I/O Bit3 ~ Bit0 of I/O port 4

I/O Bit3 ~ Bit0 of I/O port 5

I/O Bit3 ~ Bit0 of I/O port 6

P Positive power supply

P Negative power supply

I Crystal In

I Chip Reset (Active high)

O Crystal Out / Rosc In

I Clock type select (Internal pull low)

‘L’ or floating → RC oscillator

‘H’ →Crystal

O Positive Output of PWM or DA1

O Negative Output of PWM or DA2

Ver: 1.3

4

June 8, 2005

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