SN66168B データシートの表示（PDF） - Sonix Technology Co., Ltd

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SN66168B

4-Channel Speech Controller

Sonix Technology Co., Ltd 

3 Block Diagram

SN66168B

4-Channel Speech Controller

ROM

Program/Speech/Melody/Instrument waveform

512K×12 bits

Address Pointers/ STACK

Timing

Generator

OSC

SRAM (128 nibbles)

Sampling Rate Counter × 4

Timer

IO1

ALU

Voice

Synthesizer

DA8-bit

DA8-bit

IO2

IO3

IO4

4 PIN ASSIGNMENT

Symbol

I/O Function Description

P13, P12, P11, P10 I Bit3 ~ Bit0 of input port 1

P23, P22, P21, P20 I/O Bit3 ~ Bit0 of I/O port 2

P33, P32, P31, P30 I/O Bit3 ~ Bit0 of I/O port 3

P43, P42, P41, P40 O Bit3 ~ Bit0 of output port 4

VDD

I Positive power supply

GND

I Negative power supply

OSC/XIN

XOUT

CKSEL

VO1

VO2

I Oscillator / Crystal In

O Crystal Out

I Clock type select

‘L’ or floating → RC oscillator

‘H’ →Crystal

O D/A current output, for channel 1 and 2

O D/A current output, for channel 3 and 4

Ver: 1.1

2

December 6, 2004

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