DP83953VUL National Semiconductor, DP83953VUL Datasheet - Page 5

• Manufacturer Part Number: DP83953VUL
• Description: IC CTRLR RIC REPEATER 160-PQFP
• Manufacturer: National Semiconductor

Specifications of DP83953VUL

• Controller Type: Ethernet Repeater Interface Controller
• Interface: IEEE 802.3
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 870mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 160-MQFP, 160-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: *DP83953VUL

2.0 Pin Descriptions
TP = Twisted Pair interface compatible, TT = TTL compatible, I = Input, O = Output, Analog = current dependent effect,
AL = AUI Level, AD = AUI Drive
Network Interface Pins
RXI2- to RXI13-
RXI2+ to RXI13+
TXO2- to TXO13-
TXO2+ to TXO13+
FILTTL
REQ
RTX
AUI Port
CD1+
CD1-
RX1+
RX1-
TX1+
TX1-
Pin Name
Pin No.
153
111
112
113
114
109
110
4
5
Analog
Analog
Driver
Type
AD
AD
TP
TP
TP
TP
TT
AL
AL
AL
AL
I/O
O
O
O
O
I
I
I
I
I
I
I
I
I
Twisted Pair Receive Input Negative
Twisted Pair Receive Input Positive
Twisted Pair Transmit Output Negative
Twisted Pair Transmit Output Positive
FILter/TTL: This pin can be utilized for the PCB diagnostic pur-
poses.
0: Normal repeater operation
1: Differential transmit signals change to TTL level +TX and de-
layed +TX.
Equalization Resistor: A resistor connected between this pin and
GND or
Manchester encoded transmit data. Care must be taken to ensure
system timing integrity when using cable lengths greater than
100m. The value here is dependent upon board layout.
Extended Cable Resistor: A resistor connected between this pin
and GND or
outputs. Care must be taken to ensure system timing integrity
when using cable lengths greater than 100m. The value here is
dependent upon board layout.
AUI Collision Detect Input Positive
AUI Collision Detect Input Negative
AUI Receive Input Positive
AUI Receive Input Negative
AUI Transmit Output Positive
AUI Transmit Output Negative
5
V
DD
adjusts the equalization step amplitude on the
V
DD
adjusts the amplitude of the differential transmit
Description
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