SNC20AS 查看數據表（PDF） - Sonix Technology Co., Ltd

零件编号

产品描述 (功能)

生产厂家

SNC20AS

Direct Drive Speech Controller

Sonix Technology Co., Ltd 

3. Block Diagram

SNC20AS

Direct Drive Speech Controller

ROM

Program/Speech

256K×10 bits

Address Pointers/ STACK

Timing

Generator

OSC

SRAM (48 nibbles)

Sampling Rate Counter

Timer

ALU

Voice

Synthesizer

IO3 / IO2

PWM

D/A

4. PIN ASSIGNMENT

Symbol

I/O Function Description

P33 ~ P30

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

P21 ~ P20

I/O Bit1 ~ Bit0 of I/O port 2

VDD

P Positive power supply

GND

P Negative power supply

RST

I Reset pin (active high)

OSC

O Oscillator / Crystal Out

BUO1/VO

O Positive Output of PWM or DA output

BUO2

O Negative Output of PWM

Fuse

I For test mode

Ver: 0.3

3

Sept 20, 2007

Share Link: