ML4642
PIN DESCRIPTIONS
PIN NO.
1
NAME
RXLED/LPBK/SQE
FUNCTION
I/O
DESCRIPTION
Active low receive LED driver for MAU port. If tied to ground, this pin
enables internal loopback of the active TXIN pair to the RXOUT pairs
and enables SQE test. If tied to 0.6 volts internal loopback is enable but
SQE test is disabled. SQE and loopback are disabled when this pin is
pulled high.
Receive signal pair for MAU port.
Receive signal pair for MAU port.
Active low jabber LED driver for DTE port 1. If tied to ground, the
jabber function is disabled at TXIN1 and TXIN2.
Bias setting external resistor, 61.9K�½.
+5 volt power supply
Transmit signal pair for MAU port.
Transmit signal pair for MAU port.
Open collector, active low transmit LED driver for DTE AUI port 1.
Open collector, active low transmit LED driver for DTE AUI port 2.
Transmit signal pair for DTE port 2.
Transmit signal pair for DTE port 2.
Transmit signal pair for DTE port 1.
Transmit signal pair for DTE port 1.
+5 volt power supply
Collision signal pair for DTE port 2.
Collision signal pair for DTE port 2.
Open collector, active low collision LED driver.
Collision signal pair for MAU port.
Collision signal pair for MAU port.
Open collector, active low jabber LED driver for DTE port 2.
Collision signal pair for DTE port 1.
Collision signal pair for DTE port 1.
GND.
Receive signal pair for DTE port 2.
Receive signal pair for DTE port 2.
Receive signal pair for DTE port 1.
Receive signal pair for DTE port 1.
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
RXINP
RXINN
JAB1/JDIS
RRSET
V
CC
TXOUTP
TXOUTN
TXLED1
TXLED2
TXIN2P
TXIN2N
TXIN1P
TXIN1N
V
CC
CDOUT2N
CDOUT2P
CDLED
CDINN
CDINP
JAB2
CDOUT1P
CDOUT1N
GND
RXOUT2P
RXOUT2N
RXOUT1N
RXOUT1P
Input
Onput
I/O
Input
Power
Output
Output
Output
Output
Input
Input
Input
Input
Power
Output
Output
Output
Input
Input
Output
Output
Output
Ground
Output
Output
Output
Output
3
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
