KS8995XA(2008) View Datasheet(PDF) - Micrel
Part Name
Description
Manufacturer
KS8995XA Datasheet PDF : 51 Pages
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Micrel, Inc.
KS8995XA
Pin Description (by Number)
Pin Number
Pin Name
Type(1)
Port
Pin Function(2)
1
MDI-XDIS
Ipd
1-5
Disable auto MDI/MDI-X.
PD (default) = normal operation.
PU = disable auto MDI/MDI-X on all ports.
2
GNDA
Gnd
Analog ground.
3
VDDAR
P
1.8V analog VDD.
4
RXP1
I
1
Physical receive signal + (differential).
5
RXM1
I
1
Physical receive signal – (differential).
6
GNDA
Gnd
Analog ground.
7
TXP1
O
1
Physical transmit signal + (differential).
8
TXM1
O
1
Physical transmit signal – (differential).
9
VDDAT
P
2.5V or 3.3V analog VDD.
10
RXP2
I
2
Physical receive signal + (differential).
11
RXM2
I
2
Physical receive signal – (differential).
12
GNDA
Gnd
Analog ground.
13
TXP2
O
2
Physical transmit signal + (differential).
14
TXM2
O
2
Physical transmit signal – (differential).
15
VDDAR
P
1.8V analog VDD.
16
GNDA
Gnd
Analog ground.
17
ISET
18
VDDAT
P
Set physical transmit output current. Pull-down with a 3.01kΩ1%
resistor.
2.5V or 3.3V analog VDD.
19
RXP3
I
3
Physical receive signal + (differential).
20
RXM3
I
3
Physical receive signal - (differential).
21
GNDA
Gnd
Analog ground.
22
TXP3
O
3
Physical transmit signal + (differential).
23
TXM3
O
3
Physical transmit signal – (differential).
24
VDDAT
P
2.5V or 3.3V analog VDD.
25
RXP4
I
4
Physical receive signal + (differential).
26
RXM4
I
4
Physical receive signal - (differential).
27
GNDA
Gnd
Analog ground.
28
TXP4
O
4
Physical transmit signal + (differential).
29
TXM4
O
4
Physical transmit signal – (differential).
30
GNDA
Gnd
Analog ground.
Notes:
1. P = Power supply.
I = Input.
O = Output.
I/O = Bidirectional.
Gnd = Ground.
Ipu = Input w/internal pull-up.
Ipd = Input w/internal pull-down.
Ipd/O = Input w/internal pull-down during reset, output pin otherwise.
Ipu/O = Input w/internal pull-up during reset, output pin otherwise.
2. PU = Strap pin pull-up.
PD = Strap pull-down.
Otri = Output tristated.
September 2008
9
M9999-091508
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