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XRT4500 Datasheet(PDF) 91 Page - Exar Corporation

Part # XRT4500
Description  MULTIPROTOCOL SERIAL NETWORK INTERFACE IC
PDF  99 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT4500 Datasheet(HTML) 91 Page - Exar Corporation

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XRT4500
áç
áç
áç
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MULTIPROTOCOL SERIAL NETWORK INTERFACE IC
REV. 1.0.7
88
SCENARIO 17 & 18
COMMENTS: X:21 MODE OPERATION
INPUT PIN SETTINGS (1 CLOCK MODE)
NOTE: When M0=1, M2=1, M2=0 the XRT4500 is in the 1 clock (X.21) mode and the 2CK/3CK input pin is ignored.
DTE (#17)
DCE (#18)
PIN
#
NAME
STATE
DESCRIPTION
PIN
#
NAME
STATE
DESCRIPTION
31
DCE/DTE
0
DTE
31
DCE/DTE
1
DCE
34
EC
1
No Echo
34
EC
1
No Echo
50
2CK/3CK
X
Don’t care
50
2CK/3CK
XDon’t care
18
LP
1
No Loopback
18
LP
1
No Loopback
54
CKINV
1
No Invert
54
CKINV
1No Invert
55
DTINV
1
No Invert
55
DTINV
1No Invert
53
OSCEN
1
No Internal OSC
53
OSCEN
1
No Internal OSC
HDLC (R)
HDLC (L)
XRT4500
XRT4500
RX1
TX1
RX2
TX2
RX3
TX3
RX2
TX2
RX1
TX1
TXD
SCTE
TXC
RXC
RXD
TXD
SCTE
TXC
RXC
RXD
60
67
73
74
1
78
79
72
76
70
71
64
65
64
62
1
74
68
67
60
63
62
64
65
70
71
77
76
78
79
TXD
RXC
RXD
DTE (#17)
DCE (#18)



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