LU82551QM 860611 Intel, LU82551QM 860611 Datasheet - Page 20
LU82551QM 860611
Manufacturer Part Number
LU82551QM 860611
Description
Manufacturer
Intel
Datasheet
1.LU82551QM_860611.pdf
(120 pages)
Specifications of LU82551QM 860611
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (min)
3V
Operating Supply Voltage (max)
3.6V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
196
Lead Free Status / RoHS Status
Compliant
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82551QM — Networking Silicon
4.7
14
Table 9.
Table 10. Power and Ground Signals
PHY Signals
a. Based on some board designs, RBIAS100 and RBIAS10 values may need to be increased/decreased to com-
Power and Ground Signals
RBIAS100
RBIAS10
VREF
VCC
VCCR
VSSPL,
VSSPP,
VSSPT, VSS
NC
pensate for high/low MDI transmit amplitude. See the 82562EZ(EX)/82551QM & 82540EM Combined Foot-
print LOM Design Guide for more information.
Symbol
Symbol
B
B
B
DPS
APS
DPS
DPS
Type
Type
Reference Bias Resistor (100 Mbps). This pin should be connected
to a pull-down resistor.
Reference Bias Resistor (10 Mbps). This pin should be connected
to a pull-down resistor.
Voltage Reference. This pin is connected to a 1.25 V ± 1% external
voltage reference generator. To use the internal voltage reference
source, this pin should be left floating. Under normal circumstances,
the internal voltage reference should be used and this pin would be left
open.
Digital 3.3 V Power. The VCC pins should be connected to the main
digital power supply. This is 3.3 V
power supply and PCI power in systems without an auxiliary power
supply. The power source is configured through the FLA1/AUXPWR
pin.
Analog Power. These pins should be connected directly to VCC.
Digital Ground. These pins should be connected to the main digital
ground plane.
No Connect. These pins should not be connected to any circuit. Pull-
up or pull-down resistors should not be used.
a
a
Name and Function
Name and Function
AUX
in systems with an auxiliary
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