SP505 Datasheet, PDF (28/35 Pages) Sipex Corporation – WAN Multi-Mode Serial Transceiver

RD(a) 70
RxD 1
RD(b) 71
RT(a) 37
RxC 20
RT(b) 38
CS(a) 66
CTS 80
CS(b) 67
DM(a) 68
DSR 78
DM(b) 69
RR(a) 35
DCD 19
RR(b) 36
IC(a) 39
RI 21
MODE: RS-449
DRIVER/RECEIVER
DEC₃ DEC₂ DEC₁ DEC₀
110
0
SCT(a) 76
SCT 79
SCTEN 7
SCT(b) 77
RECEIVERS
DRIVERS
14 TxD
61 SD(a)
59 SD(b)
2 SDEN
13 DTR
58 TR(a)
56 TR(b)
3 TREN
16 RTS
54 RS(a)
52 RS(b)
4 RSEN
17 RL
47 RL(a)
18 RLEN
24 LL
51 LL(a)
5 LLEN
22 ST
42 ST(a)
44 ST(b)
23 STEN
15 TxC
63 TT(a)
65 TT(b)
6 TTEN
Figure 56. Mode Diagram — RS-449
Exar Coporation 48720 Kato Road, Fremont CA, 94538 • [phone] • Fax [phone] • www.exar.com
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SP505_100_081308