FW82546GB Intel, FW82546GB Datasheet - Page 18

• Manufacturer Part Number: FW82546GB
• Manufacturer: Intel

Specifications of FW82546GB

• Operating Supply Voltage (typ): 1.5/2.5/3.3V
• Operating Supply Voltage (min): 1.43/2.38/3V
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 364
• Lead Free Status / RoHS Status: Not Compliant

82546GB — Networking Silicon
3.2.7
3.2.8
3.3
12
Note: A pull-up resistor with a recommended value of 4.7 K should be placed along the SMB. A
Impedance Compensation Signals
SMB Signals
precise value may be calculated from the SMB specification.
EEPROM Interface Signals
ZN_COMP
ZP_COMP
SMBCLK
SMBDATA
SMBALRT
#
EE_DI
EE_DO
EE_CS
EE_SK
Symbol
Symbol
Symbol
I/O
I/O
I/O
I/O
O
O
I
O
O
Type
Type
Type
N Device Impedance Compensation. This signal should be connected to an external
precision resistor (to VDD) that is indicative of the PCI/PCI-X trace load. This cell is
used to dynamically determine the drive strength required on the N-channel transistors
in the PCI/PCI-X I/O cells.
The internal pull-up impedance is nominally 120 K with a minimum of 90 K and a
maximum of 190 K.
P Device Impedance Compensation. This signal should be connected to an external
precision resistor (to VSS) that is indicative of the PCI/PCI-X trace load. This cell is
used to dynamically determine the drive strength required on the P-channel transistors
in the PCI/PCI-X I/O cells.
The internal pull-up impedance is nominally 120 K with a minimum of 90 K and a
maximum of 190 K.
SMB Clock. The SMB Clock signal is an open drain signal for serial SMB interface.
SMB Data. The SMB Data signal is an open drain signal for serial SMB interface.
SMB Alert. The SMB Alert signal is open drain for serial SMB interface.
EEPROM Data Input. The EEPROM Data Input pin is used for output to the memory
device.
EEPROM Data Output. The EEPROM Data Output pin is used for input from the
memory device. The EE_DO includes an internal pull-up resistor.
EEPROM Chip Select. The EEPROM Chip Select signal is used to enable the device.
EEPROM Serial Clock. The EEPROM Shift Clock provides the clock rate for the
EEPROM interface, which is approximately 1 MHz.
Name and Function
Name and Function
Name and Function
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