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XRT4500(2000) 데이터 시트보기 (PDF) - Exar Corporation
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XRT4500
(Rev.:2000)
MULTIPROTOCOL SERIAL NETWORK INTERFACE IC
Exar Corporation
XRT4500 Datasheet PDF : 96 Pages
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XRT4500
MULTIPROTOCOL SERIAL NETWORK INTERFACE IC
REV. 1.01
B
LOCK
D
IAGRAM
xr
-6V
68µ
F
-
Low ESR
+
VDD
47
VDD_REG
51
1N5819
0.47
µ
H
7 26 41 56
52
V
SS
V
SS
Vsense
V
SS
_T123
SR_OUT
-6V
Switching Regulator
0.5
Ω
42
Isense
2.2
µ
F
43
21
22
GND_REG
CPP CPM
+12V
Charge Pump
16
-
V
PP
10
µ
F
+
M0
4
M1
5
M2
6
LATCH
44
Decoder
Latch
XRT4500
Mode Select
31
DEC/DTE
Echo Clock
34
EC
2 or 3 Clock Select 50
2CK/3CK
Loopback
18
LP
CLKFS
45
500 KHz
CLOCK
MODE & CONFIGURATION
CONTROL LOGIC
Invert Clock
Invert Data
54
CLK INV
55
DT INV
32 - 64 KHz
53
OSCEN
SLEW_CNTL
39
R
slew
SLEW RATE
CONTROL
E_232H
46
VDD
2
RX1A
78
High Speed RS232 Enable
RX1,2,3
Digital MUX 1
T
RX1
RX1B
79
TX1
RX1D
1
RX2A
77
T
RX2
RX2B
76
TX2
RX2D
74
RX3D
73
GND
3
VDD
20
RX4A
37
RX4B
RX4D
38
40
RX5A
36
RX5B
35
RX5D
33
RX3
RX1,2,3
RX4,5,6,7
RX4
RX5
RX6
RX67D
32
RX7
TX3
Digital MUX 2
Filter
TX4
Filter
TX5
Filter
MUX
Filter
TX6
MUX
TX7
Register
Mode Control
Register Mode
Clock Input
24
REG
49
REG_CLK
TX1,2,3
T
TX1,2,3
T
TX1,2
T
RX4,5,6,7,8
58
VDD_T123
60
TX1D
63
TX1A
61 CM_TX1
62 TX1B 0.1
57 GND
67
TX2D
64
TX2A
66 CM_TX2
65 TX2B 0.1
59
GND_T12
68
TX3D
70
TR3A
69 CM_TR3
71 TR3B
0.1
72 GND
8
TX4D
11
TX4A
10
TX4B
15
TX5D
12
TX5A
13
TX5B
TX4,5,6,7,8
9
VDD
29
TR6A
30
TR6B
28
TX76D
27
TR7
EN_OUT
48
RX8I
25
RX8D
23
EN_FLTR
75
RX8
Glitch Filter
Filter
17
TX8D
TX8
19
TX8O
TX4,5,6,7,8
14
GND
V.11 (RX1,2,3) Termination 80
EN_TERM
2
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