ml4644 Microsemi Corporation, ml4644 Datasheet - Page 2

• Manufacturer Part Number: ml4644
• Description: Port Multiplexer
• Manufacturer: Microsemi Corporation

ML4644
PIN CONNECTIONS
PIN DESCRIPTION
PIN #
2
1
2
3
4
5
6
7
8
9
10
11
12
NAME
CDOUT2P
CDOUT2N
COLL
CDOUT3P
CDOUT3N
NC
TxIN2P
NC
NC
TxIN2N
TxIN3P
TxIN3N
FUNC.
Output
Output
Output
Output
Output
Input
Input
Input
Input
RESERVED
RxOUT1N
RxOUT2N
RxOUT1P
RxOUT2P
TxOUTN
TxOUTP
TxIN2N
TxIN3N
TxIN3P
RRSET
JAB2
VCC
VCC
REC
NC
NC
DESCRIPTION
Collision signal pair for
DTE port 2.
Collision signal pair for
DTE port 2.
Open collector LED
driver for collision.
Collision signal pair for
DTE port 3.
Collision signal pair for
DTE port 3.
No connection.
Transmit signal pair for
DTE port 2.
No connection.
No connection.
Transmit signal pair for
DTE port 2.
Transmit signal pair for
DTE port 3.
Transmit signal pair for
DTE port 3.
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27 28 29 30 31 32 33
9
8
7
6
5
4
3
ML4644
34
2
35
1
68
36
PIN #
13
14
15
16
17
18
19
20
21
22
37
67
38
66
65 64 63 62 61
39 40 41 42 43
NAME
NC
TxOUTN
TxOUTP
Reserved
RRSET
NC
JAB2
RxOUT1P Output
RxOUT1N Output
REC
FUNC.
Output
Output
Input
Output
Output
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
CDINN
CDOUT4N
CDOUT4P
NC
TxIN1P
TxIN1N
CDOUT1N
CDOUT1P
GND
Tx1
Tx2
Tx3
Tx4
TxIN4P
TxIN4N
JAB1
SQEN4
DESCRIPTION
No connection.
Transmit signal pair for
MAU port.
Transmit signal pair for
MAU port.
This pin should be tied
to VCC.
Bias setting external
resistor, 61.9ký,
connected to VCC
No connection.
Open collector jabber
LED driver for Jabber of
DTE port 2.
Receive signal pair for
DTE port 1.
Receive signal pair for
DTE port 1.
Open collector LED
driver for receive.
Grounding this pin
enables loopback.