KSZ8999 データシートの表示（PDF） - Micrel
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KSZ8999 Datasheet PDF : 53 Pages
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Micrel, Inc.
Pin Description
Pin Number Pin Name
1
VDD_RX
2
GND_RX
3
GND_RX
4
VDD_RX
5
RXP[3]
6
RXM[3]
7
AOUT2
8
DOUT2
9
TXP[3]
10
TXM[3]
11
QH[5]
12
QH[4]
13
QH[3]
14
QH[2]
15
GND_TX
16
VDD_TX
17
VDD_TX
18
GND-ISO
19
TXP[4]
20
TXM[4]
21
GND_TX
22
RXP[4]
23
RXM[4]
24
GND_RX
25
VDD_RX
26
ISET
27
GND-ISO
28
VDD_RX
29
GND_RX
30
RXP[5]
31
RXM[5]
32
GND_TX
33
TXP[5]
34
TXM[5]
35
GND-ISO
36
VDD_TX
37
VDD_TX
38
GND_TX
Type(1)
Pwr
GND
GND
Pwr
I
I
O
O
O
O
Opd
Opd
Opd
Opd
GND
Pwr
Pwr
GND
O
O
GND
I
I
GND
Pwr
GND
Pwr
GND
I
I
GND
O
O
GND
Pwr
Pwr
GND
Port
3
3
3
3
4
4
4
4
5
5
5
5
Pin Function
2.0V for equalizer
Ground for equalizer
Ground for equalizer
2.0V for equalizer
Physical receive signal + (differential)
Physical receive signal - (differential)
Factory test output
Factory test output
Physical transmit signal + (differential)
Physical transmit signal - (differential)
Factory test pin –leave open for normal operation
Factory test pin –leave open for normal operation
Factory test pin –leave open for normal operation
Factory test pin –leave open for normal operation
Ground for transmit circuitry
2.0V for transmit circuitry
2.0V for transmit circuitry
Analog ground
Physical transmit signal + (differential)
Physical transmit signal - (differential)
Ground for transmit circuitry
Physical receive signal + (differential)
Physical receive signal - (differential)
Ground for equalizer
2.0V for equalizer
Set physical transmit output current
Analog ground
2.0V for equalizer
Ground for equalizer
Physical receive signal + (differential)
Physical receive signal - (differential)
Ground for transmit circuitry
Physical transmit signal + (differential)
Physical transmit signal - (differential)
Analog ground
2.0V for transmit circuitry
2.0V for transmit circuitry
Ground for transmit circuitry
January 2005
8
KS8999
KS8999
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