User Manual
MAX13171E/MAX13173E/MAX13175E
Multiprotocol, Pin-Selectable
Data Interface Chipset
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CTS A
4
25
21
18
2
14
24
11
15
12
17
9
3
16
7
19
20
23
8
10
6
22
5
13
CTS B
DSR A
DSR B
DCD A
DCD B
DTR A
DTR B
RTS A
RTS B
RXD A
RXD B
RXC A
RXC B
TXC A
TXC B
SCTE A
SCTE B
TXD A
TXD B
CHARGE
PUMP
DTE
DCE
RTS A
RTS B
DTR A
DTR B
DCD A
DCD B
DSR A
DSR B
CTS A
CTS B
TXD A
TXD B
SCTE A
SCTE B
TXC A
TXC B
RXC A
RXC B
RXD A
RXD B
SG
CHARGE
PUMP
M2
0.1µF
0.1µF
C5
4.7µF
C2
1µF
C4
4.7µF
V
EE
V
DD
T1
T2
T3
R1
R2
R3
T1OUTA
T1OUTB
T2OUTA
T2OUTB
T3OUTA/R1INA
T3OUTB/R1INB
R2INA
R2INB
R3INA
R3INB
V
CC
T1IN
T2IN
T3IN
R1OUT
R2OUT
R3OUT
V
CC
R1A
R1B
R2A
R2B
R3A
R3B
R4A
R4B
R5A
R5B
R6A
R6B
100pF
100pF 100pF
M1
M0
DCE/DTE
M1
M2
DCE/DTE
M0
V
L
LATCH
MAX13175E
MAX13171E
T1
T2
T3
T4
R1
R2
R3
T1OUTA
T1OUTB
V
EE
V
EE
V
DD
V
CC
C1
1µF
C4
4.7µF
T2OUTA
T2OUTB
T3OUTA/R1INA
T3OUTB/R1INB
R2INA
R2INB
R3INA
R3INB
0.1µF
R4
NC
V
L
NC
M1
M2
DCE/DTE INVERT
M0
DB-25
CONNECTOR
MAX13173E
0.1µF
1
SHIELD
DTE_TXD/DCE_RXD
DTE_SCTE/DCE_RXC
DTE_TXC/DCE_TXC
DTE_RXC/DCE_SCTE
DTE_RXD/DCE_TXD
DTE_RTS/DCE_CTS
DTE_DTR/DCE_DSR
DTE_DCD/DCE_DCD
DTE_DSR/DCE_DTR
DTE_CTS/DCE_RTS
R1OUT
T2IN
T3IN
T1IN
R2OUT
R3OUT
M1
DCE/DTE
M0
T5OUTA/R5INA
T4OUTA/R4INA
R5
T5
T4IN
R4OUT
R5OUT/T5IN
C5
4.7µF
C3
4.7µF
C2
1µF
V
DD
C1
1µF
C3
4.7µF
0.1µF
V
L
0.1µF
V
L
Figure 17. Cable-Selectable Multiprotocol DCE/DTE Port with DB-25 Connector