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LXT975B Datasheet(PDF) 18 Page - Intel Corporation

Part # LXT975B
Description  Fast Ethernet 10/100 Quad Transceivers
PDF  74 Pages
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Manufacturer  INTEL [Intel Corporation]
Direct Link  http://www.intel.com
Logo INTEL - Intel Corporation

LXT975B Datasheet(HTML) 18 Page - Intel Corporation

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LXT974/LXT975 — Fast Ethernet 10/100 Quad Transceivers
18
Datasheet
Table 11. LXT974 Power Supply Signal Descriptions
Pin#
Symbol
Type
Signal Description
22, 60, 96
VCC
-
Power Supply. +5V supply for all digital circuits.
40, 78
VCCMII
-
MII Supply. +3.3V or +5V supply for MII. A decoupling capacitor
to digital ground should be supplied for these pins.
7, 14, 39, 56, 59, 77, 95, 160
GND
-
Digital Ground. Ground return for digital supply.
21
GNDA
-
Analog Ground. Ground return for analog supply.
108
GNDH
-
Ground. Ground return for core analog circuitry.
107
VCCH
-
Supply. +5V supply for core analog circuitry.
128, 137, 147, 156
VCCT
-
Transmit Power Supply. +5V supply for transmit circuits.
127, 136, 146, 155
GNDT
-
Transmit Ground. Ground return for transmit supply.
125, 134, 144, 153,
VCCR
-
Receive Power Supply. +5V supply for all receive circuits.
121, 122, 131, 141, 150
GNDR
-
Receive Ground. Ground return for receive supply.
Table 12. LXT975 Power Supply Signal Descriptions
Pin#
Symbol
Type
Signal Description
22, 60, 96
VCC
-
Power Supply. +5V supply for all digital circuits.
40, 78
VCCMII
-
MII Supply. +3.3V or +5V supply for MII. A decoupling capacitor
to digital ground should be supplied for these pins.
7, 14, 39, 56, 59, 77, 95, 160
GND
-
Digital Ground. Ground return for digital supply.
21
GNDA
-
Analog Ground. Ground return for analog supply.
108
GNDH
-
Ground. Ground return for core analog circuitry.
107
VCCH
-
Supply. +5V supply for core analog circuitry.
128, 135, 147, 154
VCCT
-
Transmit Power Supply. +5V supply for transmit circuits.
127, 134, 146, 153
GNDT
-
Transmit Ground. Ground return for transmit supply.
125, 132, 144, 151,
VCCR
-
Receive Power Supply. +5V supply for all receive circuits.
121, 122, 131, 137, 141, 150, 156
GNDR
-
Receive Ground. Ground return for receive supply.



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