KS8995XA Micrel Inc, KS8995XA Datasheet - Page 9

• Manufacturer Part Number: KS8995XA
• Description: IC SWITCH 10/100 5PORT 128PQFP
• Manufacturer: Micrel Inc

Specifications of KS8995XA

• Applications: *
• Mounting Type: Surface Mount
• Package / Case: 128-MQFP, 128-PQFP
• Number Of Primary Switch Ports: 5
• Internal Memory Buffer Size: 64
• Operating Supply Voltage (typ): 1.8/2.5/3.3V
• Fiber Support: Yes
• Integrated Led Drivers: Yes
• Phy/transceiver Interface: MII/SNI
• Power Supply Type: Analog/Digital
• Package Type: PQFP
• Data Rate (typ): 10/100Mbps
• Vlan Support: Yes
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Pin Count: 128
• Mounting: Surface Mount
• Jtag Support: No
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-1604 - EVAL KIT EXPERIMENTAL KS8995XA
• Lead Free Status / RoHS Status: Not Compliant, Lead free / RoHS Compliant

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