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XRT4500 Datasheet(PDF) 2 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) 2 Page - Exar Corporation

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XRT4500
MULTIPROTOCOL SERIAL NETWORK INTERFACE IC
REV. 1.0.7
2
BLOCK DIAGRAM
Digital MUX 1
47µF
Low ESR
-6V
26
-6V
Switching Regulator
41
56
52
42
43
+12V
Charge Pump
21
22
2.2
µF
V
SS
Vsense V
SS _T123
SR_OUT
Isense
GND_REG
CPP
CPM
1N5819
47
µH
0.5
Ω
-
+
16
Decoder
Latch
4
5
6
44
XRT4500
MODE & CONFIGURATION
CONTROL LOGIC
32 - 64 KHz
SLEW RATE
CONTROL
45
39
R
slew
M0
M1
M2
CLKFS
SLEW_CNTL
Mode Select
Echo Clock
34
2 or 3 Clock Select
50
Invert Clock
54
Register
24
Invert Data
55
Loopback
Register Mode
Clock Input
Mode Control
49
REG_CLK
REG
2CK/3CK
LP
CLK INV
DT INV
EC
DEC/DTE
51
VDD_REG
VDD
RX1B
RX1,2,3
RX1D
RX1A
2
78
79
RX2D
RX1
1
RX8D
RX8I
25
23
RX8
Filter
GND
RX1,2,3
3
RX5B
RX5D
RX5A
36
33
35
RX5
Filter
RX2B
RX2A
T
77
74
76
RX2
RX3D
73
RX3
RX67D
32
RX4,5,6,7
RX7
RX6
Filter
Filter
75
EN_FLTR
TX1,2,3
58
VDD_T123
67
TX2D
T
64
TX2A
66 CM_TX2
TX2B
65
68
TX3D
T
70
TR3A
69 CM_TR3
TR3B
71
8
TX4D
11
TX4A
TX4B
10
TX2
TX4
TX3
15
TX5D
12
TX5A
TX5B
13
27
TR7
TX7
TX5
GND_T12
60
TX1D
T
63
TX1A
61 CM_TX1
TX1B
62
TX1
TX1,2
59
72 GND
9 VDD
TX4,5,6,7,8
29
TR6A
TR6B
30
TX6
MUX
28 TX76D
V.11 (RX1,2,3) Termination 80
EN_TERM
Digital MUX 2
46
Glitch Filter
48
EN_OUT
MUX
E_232H
OSCEN
53
TX1,2,3
57 GND
RX4,5,6,7,8
7
V
SS
17
TX8D
19 TX8O
GND
14
TX4,5,6,7,8
TX8
T
High Speed RS232 Enable
20
VDD
RX4B
RX4D
RX4A
37
40
38
RX4
Filter
V
PP
+
10
µF
0.1
0.1
0.1
VDD 47
LATCH
18
31
500 KHz
CLOCK
+
-



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