ML2652/ML2653
PIN DESCRIPTION (Continued)
NAME FUNCTION
NAME FUNCTION
RxD
Receive data output. Digital output which
contains receive data sent to the controller.
CLS
Collision status output. Digital output which
indicates that collision condition has been
detected. Pin is an open drain output with resistor
pullup and is capable of driving an LED.
RxE
Receive data valid. Digital output to the controller
that indicates when the receive data (RxD) is
valid.
LTP
Link test pass output/input. This pin consists of an
open drain output transistor with a resistor pullup
that serves both as a link test pass output and a
link test disable input. When used as an output,
this pin is capable of driving an LED.
LTP = High, link test failed
LPBK Local loopback. Digital input from the controller
which forces the device to loopback transmit data
without sending it on the media.
FD
Full Duplex Enable. When enabled the 10BASE-T
MAU loopback and collision detect are disabled.
LPBK must be disabled when using this function.
LTP = Low, link test pass
LTP = GND, link test disabled
AUI/TP AUI/twisted pair interface select input.
AUI/TP = High, AUI selected
CS0
Controller selection input. Digital input which
selects one of four standard controller timing
interfaces. This pin has an internal pulldown
resistor to GND.
AUI/TP = Low, TP selected
RPOL This pin must be grounded at all times.
CS1
CS2
RSL
Controller select input. Digital input which selects
one of four standard controller timing interfaces.
This pin has an internal pulldown resistor to GND.
JAB
Jabber detect output. Digital output which
indicates that the jabber condition has been
detected. Pin is an open drain output with resister
pullup and is capable of driving a LED.
JAB = High, normal
Controller select input. Digital input which selects
one of four standard controller timing interfaces.
This pin has an internal pulldown resistor to GND.
JAB = Low, jabber detected
AUISEL AUI/TP port output status
AUISEL = High, TP port selected
AUISEL = Low, AUI port selected
Receive squelch level select input. Pin has
internal pullup resistor toVCC.
RSL = High Receive squelch level = 10Base-T
RSL = Low Receive squelch level = extended
distance
JABDIS Jabber disable input
JABDIS = High, jabber disabled
JABDIS = Low, normal operation
XMT
RCV
Transmit status output. Digital output which
indicates data transmission on Tx+ and Tx–.
Pin is open drain output with resistor pullup and is
capable of driving an LED. XMT pin and RCV pin
are the same pin for the ML2653.
NC
No connect. Leave this pin open circuit.
Receive status output. Digital output which
indicates unsquelched data reception on Rx+
and Rx–. Pin is an open drain output with resistor
pullup and is capable of driving an LED.
ABSOLUTE MAXIMUM RATINGS
Absolute maximum ratings are limits beyond which the
life of the integrated circuit may be impaired. All voltages
unless otherwise specified are measured with respect to
GND. (Note 1)
Storage temperature range ........................ –65°C to 150°C
Junction Temperature .............................................. 150°C
Lead temperature (soldering, 10 sec)....................... 260°C
Thermal Resistance (q )
JA
28-Lead PLCC................................................... 60°C/W
44-Lead PLCC................................................... 54°C/W
44-Lead TQFP................................................... 67°C/W
V
supply voltage .................................................. +6.5V
CC
All inputs and outputs....................... –0.3V to V + 0.3V
CC
Input current per pin............................................. ±25 mA
Power dissipation .............................................. 0.75 Watt
4
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
