SN66021 datasheet(2/5 Pages) SONIX

部件名	SN66021

功能描述	4-Channel Speech Controller

PDF	5 Pages

Scroll/Zoom	100%

制造商	SONIX [SONiX Technology Company]

网页	http://www.sonix.com.tw

标志

2 / 5 page

SN66021

4-Channel Speech Controller

March 8, 2001

PIN ASSIGNMENT

Symbol

I/O Function Description

P10

Bit0 of input port 1

P11

Bit1 of input port 1

P12

Bit2 of input port 1

P13

Bit3 of input port 1

P20

I/O Bit0 of I/O port 2

P21

I/O Bit1 of I/O port 2

P22

I/O Bit2 of I/O port 2

P23

I/O Bit3 of I/O port 2

P30

I/O Bit0 of I/O port 3

P31

I/O Bit1 of I/O port 3

P32

I/O Bit2 of I/O port 3

P33

I/O Bit3 of I/O port 3

P40

Bit0 of output port 4

P41

Bit1 of output port 4

P42

Bit2 of output port 4

P43

Bit3 of output port 4

VDD

Positive power supply

GND

Negative power supply

OSC/XIN

Oscillator / Crystal In

XOUT

Crystal Out

CKSEL

Clock type select

‘L’

→ RC oscillator

‘H’

→Crystal

(Internal pull low)

VO1

D/A current output, for channel 1 and 2

VO2

D/A current output, for channel 3 and 4

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