NLXT905PE.C2 Cortina Systems Inc, NLXT905PE.C2 Datasheet - Page 7

• Manufacturer Part Number: NLXT905PE.C2
• Manufacturer: Cortina Systems Inc

Specifications of NLXT905PE.C2

• Number Of Receivers: 1
• Data Rate: 10Mbps
• Operating Supply Voltage (typ): 5V
• Package Type: PLCC
• Operating Temperature Classification: Industrial
• Operating Supply Voltage (max): 5.25V
• Mounting: Surface Mount
• Pin Count: 28
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Lead Free Status / Rohs Status: Not Compliant

LXT905 Transceiver
Datasheet
249271, Revision 5.1
5 November 2007
1.0
Figure 2
Table 1
Cortina Systems
1. Externally pull-up or pull-down each pin separately using a 10 k Ω, 1% termination resistor, or tie directly to V
2. Do not allow this pin to float. If unused, tie High.
Pin #
LQFP
LEDC/FDE
LEDT/PDN
13
20
27
28
29
30
31
11
12
21
32
1
2
3
4
5
LEDR
TCLK
COL
TEN
TXD
LBK
PLCC
Pin #
22
15
23
1
–
–
–
2
3
4
–
5
6
7
8
9
Pin Assignments and Signal Descriptions
LXT905 Pin Assignments
LXT905 Transceiver Signal Descriptions (Sheet 1 of 2)
®
1
2
3
4
5
6
7
8
LXT905 Universal 10BASE-T Transceiver with 3.3 V Support
Symbol
CLKO
GND1
GND2
GND3
GND4
VCC1
VCC2
VCC3
VCC4
VCC5
TCLK
CLKI
TEN
TXD
COL
LBK
LQFP
I/O
O
O
O
–
–
–
–
–
–
–
–
–
I
I
I
I
24
23
22
21
20
19
18
17
Power Inputs 1 thru 5. Power supply inputs of 3.3 V or 5 V.
Crystal Oscillator. Connect a 20 MHz crystal across these pins, or apply a 20
MHz clock at CLKI, with CLKO left open.
Ground.
Loopback. When High, forces internal loopback. Disables collision and the
transmission of both data and link pulses. Pulled Low internally.
Transmit Enable. Enables data transmission and starts the Watch-Dog Timer
(WDT). Synchronous to TCLK. Pulled Low internally.
Transmit Clock. A 10 MHz clock output. Connect this clock signal directly to the
transmit clock input of the controller.
Transmit Data. Input signal containing NRZ data to transmit on the network.
Connect TXD directly to the transmit data output of the controller. Pulled Low
internally.
Collision Signal. Output that drives the collision detect input of the controller.
MD1
MD0
TPON
GND3
VCC2
TPOP
DSQE
RBIAS
1
LEDC/FDE
LEDT/PDN
TCLK
COL
TEN
TXD
LBK
Description
5
6
7
8
9
10
11
1.0 Pin Assignments and Signal
PLCC
1
25
24
23
22
21
20
19
1
CC
Descriptions
or ground.
MD0
TPON
GND2
VCC2
TPOP
DSQE
RBIAS
Page 7