mxl1544 Maxim Integrated Products, Inc., mxl1544 Datasheet - Page 16

• Manufacturer Part Number: mxl1544
• Description: +5v, Multiprotocol, Software-selectable Control Transceivers
• Manufacturer: Maxim Integrated Products, Inc.

+5V Multiprotocol, Software-Selectable
Control Transceivers
Figure 16. Controller-Selectable Multiprotocol DCE/DTE Port with DB-25 Connector
16
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DTE_SCTE/DCE_RXC
DTE_RXC/DCE_SCTE
DTE_DCD/DCE_DCD
DTE_TXD/DCE_RXD
DTE_TXC/DCE_TXC
DTE_RXD/DCE_TXD
DTE_DTR/DCE_DSR
DTE_DSR/DCE_DTR
DTE_RTS/DCE_CTS
DTE_CTS/DCE_RTS
DTE_LL/DCE_LL
1µF
DCE/DTE
C10
INVERT
M2
M1
M0
C3
4.7µF
1µF
C9
V
5V
CC
1µF
C1
C4
1µF
V
CC
10
11
12
13
14
10
11
12
13
14
3
1
2
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
DCE/DTE
M0
M1
M2
DCE/DTE
V
V
M0
M1
M2
CC
DD
MAX3175
MXL1544
MXL1543
CHARGE
D1
D2
D3
D1
D2
D3
D4
PUMP
R1
R2
R3
R1
R2
R3
R4
INVERT
GND
V
EE
28
27
26
25
24
23
22
21
20
19
18
17
16
15
28
27
26
25
24
23
22
21
20
19
18
17
16
15
C2
1µF
C5
4.7µF
1µF
C13
C11
1µF
14
C12
1µF
2
V
V
CC
EE
100pF
C6
5
3
4
100pF
C7
6 7
8
100pF
C8
11
9 10 16 15 18 17 19 20 22 23 24 1
12 13
MXL1344A
LATCH
21
14
24
11
15
12
17
16
19
23
10
22
13
18
20
2
9
3
7
1
4
8
6
5
TXD A
TXD B
SCTE A
SCTE B
DCD A
DCD B
DSR A
DSR B
CTS A
CTS B
LL A
TXC A
TXC B
RXC A
RXC B
RXD A
RXD B
SG
SHIELD
RTS A
RTS B
DTR A
DTR B
DTE
CONNECTOR
DB-25
SCTE A
SCTE B
DCD A
DCD B
RXD A
RXD B
RXC A
RXC B
CTS A
CTS B
DSR A
DSR B
TXC A
TXC B
TXD A
TXD B
DTR A
DTR B
RTS A
RTS B
DCE
LL A