MXL1543
+5V Multiprotocol, 3Tx/3Rx, Software-
Selectable Clock/Data Transceivers
16 ______________________________________________________________________________________
D1
D2
D3
R3
R2
R1
D1
D2
D3
D4
TXD
SCTE
TXC
RXC
RXD
LL
D4
R4
R4
R3
R2
R1
104
104
104
104
104
MXL1543MXL1344A
MXL1344AMXL1543
D1
D2
D3
R3
R2
R1
D3
D2
D1
RTS
DTR
DCD
DSR
CTS
R1
R2
R3
MXL1544
MAX3175
MXL1544
MAX3175
SERIAL
CONTROLLER
TXD
SCTE
TXC
RXC
RXD
RTS
DTR
DCD
DSR
CTS
LL
SERIAL
CONTROLLER
TXD
SCTE
TXC
RXC
RXD
RTS
DTR
DCD
DSR
CTS
LL
DCE
DTE
Figure 20. DCE-to-DTE X.21 Interface
MXL1544/MAX3175 generate the control signals and
local loopback (LL). The MXL1344A is used to termi-
nate the clock and data signals to support the V.11 pro-
tocol for cable termination. The control signals do not
need external termination.
Compliance Testing
A European Standard EN 45001 test report is pending
for the MXL1543/MXL1544/MXL1344A chipset. A copy
of the test report will be available from Maxim upon
completion.
MXL1543
+5V Multiprotocol, 3Tx/3Rx, Software-
Selectable Clock/Data Transceivers
______________________________________________________________________________________ 17
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1
2
3
4
5
6
7
8
9
10
11
12
13
14
C2+
C2-
V
EE
GND
T1OUTA
T1OUTB
R3INB
T2OUTA
T2OUTB
T3OUTA/R1INA
T3OUTB/R1INB
R2INA
R2INB
R3INA
DCE/DTE
M2
M1
M0
R3OUT
R2OUT
R1OUT
T3IN
T2IN
T1IN
V
CC
V
DD
C1+
C1-
SSOP
TOP VIEW
MXL1543
Pin ConfigurationChip Information
TRANSISTOR COUNT: 2619
PROCESS: BiCMOS
MXL1543
+5V Multiprotocol, 3Tx/3Rx, Software-
Selectable Clock/Data Transceivers
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
18 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2001 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products.
Package Information
SSOP.EPS

MXL1543CAI+T

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Interface - Specialized 5V Multiptcl 3Tx/3Rx Clock/Data Tcvr
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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