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SP504 Datasheet(PDF) 24 Page - Exar Corporation

Part # SP504
Description  WAN Multi-Mode Serial Transceiver
PDF  32 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

SP504 Datasheet(HTML) 24 Page - Exar Corporation

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Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com
SP504_02_2708
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • 50-668-707 • www.exar.com
SP504_02_2708
Figure 23. Mode Diagram — RS-449
TR(b)
RD(a) 70
RxD 1
MODE: RS-449
DRIVER
RECEIVER
TDEC 3 TDEC 2 TDEC1 TDEC0 RDEC 3 RDEC2 RDEC1 RDEC 0
RT(a) 37
RxC 20
DM(a) 68
DSR 78
IC(a) 39
RI 21
SCT(a) 76
SCT79
SCTEN 7
SCT(b) 77
1
1
0
0
1
1
0
0
STEN
ST
TTEN
TT
SCTEN
SCT
1
Disabled
1
Disabled
1
Enabled
0
Enabled
0
Enabled
0
Disabled
14 TxD
61 SD(a)
59 SD(b)
15 TxC
63 TT(a)
65 TT(b)
6 TTEN
RECEIVERS DRIVERS
22 ST
42 ST(a)
44 ST(b)
23 STEN
24 LL
51 LL(a)
17 RL
47 RL(a)
13 DTR
58 TR(a)
16 RTS
54 RS(a)
52 RS(b)
CS(a) 66
CTS 80
RR(a) 35
DCD 19
RR(b) 36
CS(b) 67
RT(b) 38
RD(b) 71
55
DM(b) 69



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