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SP3508EB Datasheet, PDF (14/36 Pages) Sipex Corporation – Evaluation Board Manual
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SP3508 Driver Table
Driver Output
Pin
V.35 Mode
EIA-530
Mode
MODE (D0, D1, D2)
001
010
T 1OUT(a)
V.35
V.11
T 1OUT(b)
V.35
V.11
T 2OUT(a)
V.35
V.11
T 2OUT(b)
V.35
V.11
T 3OUT(a)
V.35
V.11
T 3OUT(b)
V.35
V.11
T 4OUT(a)
V.28
V.11
T 4OUT(b)
High-Z
V.11
T 5OUT(a)
V.28
V.11
T 5OUT(b)
High-Z
V.11
T 6OUT(a)
V.28
V.11
T 6OUT(b)
High-Z
V.11
T 7OUT(a)
V.28
V.10
T 8OUT(a)
V.28
V.10
Table 1. Driver Mode Selection
RS-232
Mode
(V.28)
011
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
V.28
EIA-530A
Mode
100
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.10
High-Z
V.11
V.11
V.10
V.10
RS-449
Mode
(V.36)
101
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.10
V.10
X.21 Mode
(V.11)
Shutdown
Suggested
Signal
110
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
High-Z
High-Z
111
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
TxD(a)
TxD(b)
TxCE(a)
TxCE(b)
TxC_DCE(a)
TxC_DCE(b)
RTS(a)
RTS(b)
DTR(a)
DTR(b)
DCD_DCE(a)
DCD_DCE(b)
RL
LL
SP3508 Receiver Table
Receiver Input
Pin
V.35 Mode
EIA-530
Mode
MODE (D0, D1, D2)
001
010
R 1IN(a)
V.35
V.11
R 1IN(b)
V.35
V.11
R 2IN(a)
V.35
V.11
R 2IN(b)
V.35
V.11
R 3IN(a)
V.35
V.11
R 3IN(b)
V.35
V.11
R 4IN(a)
V.28
V.11
R 4IN(b)
High-Z
V.11
R 5IN(a)
V.28
V.11
R 5IN(b)
High-Z
V.11
R 6IN(a)
V.28
V.11
R 6IN(b)
High-Z
V.11
R 7IN(a)
V.28
V.10
R 8IN(a)
V.28
V.10
Table 2. Receiver Mode Selection
RS-232
Mode
(V.28)
011
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
High-Z
V.28
V.28
EIA-530A
Mode
100
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.10
High-Z
V.11
V.11
V.10
V.10
RS-449
Mode
(V.36)
101
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.10
V.10
X.21 Mode
(V.11)
Shutdown
Suggested
Signal
110
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
V.11
High-Z
High-Z
111
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
RxD(a)
RxD(b)
RxC(a)
RxC(b)
TxC_DTE(a)
TxC_DTE(b)
CTS(a)
CTS(b)
DSR(a)
DSR(b)
DCD_DTE(a)
DCD_DTE(b)
RI
TM
Exar Corporation 48720 Kato Road, Fremont CA, 94538 • (510)668-7017 • www.exar.com
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SP3508_100_072208
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