General Description
The MXL1544/MAX3175 are four-driver/four-receiver
multiprotocol transceivers that operate from a single
+5V supply in conjunction with the MXL1543. The
MXL1544/MAX3175, along with the MXL1543 and
MXL1344A, form a complete software-selectable data
terminal equipment (DTE) or data communication
equipment (DCE) interface port that supports the V.28
(RS-232), V.10/V.11 (RS-449/V.36, EIA-530, EIA-530A,
X.21, RS-423), and V.35 protocols. The MXL1544/
MAX3175 transceivers carry serial interface control sig-
naling, while the MXL1543 carries the high-speed clock
and data signals. Typically, the MXL1543 is terminated
using the MXL1344A. The MAX3175 is identical to the
MXL1544 except for the addition of a 10µs (typ) glitch
rejection circuit at the receiver inputs. The MXL1544/
MAX3175 are available in 28-pin SSOP packages.
Applications
Data Networking
CSU and DSU
Data Routers
Switches
PCI Cards
Telecommunication Equipment
Features
MXL1544/MAX3175, MXL1543, MXL1344A Chipset
Is Pin Compatible with LTC1544, LTC1543,
LTC1344A Chipset
Chipset Operates from a Single +5V Supply
Software-Selectable DCE/DTE
Supports V.28 (RS-232), V.10/V.11 (RS-449/V.36,
EIA-530, EIA-530A, X.21, RS-423) Protocols
Flow-Through Pin Configuration
True Fail-Safe Operation
Low 0.5µA Shutdown Current (No-Cable Mode)
10µs Receiver Input Deglitching (MAX3175 Only)
TUV-Certified NET1/NET2 and TBR1/TBR2
Compliant
MXL1544/MAX3175
+5V Multiprotocol, Software-Selectable
Control Transceivers
________________________________________________________________ Maxim Integrated Products 1
Ordering Information
19-1992; Rev 0; 4/01
PART TEMP. RANGE PIN-PACKAGE
MXL1544CAI 0°C to +70°C 28 SSOP
MAX3175CAI 0°C to +70°C 28 SSOP
Typical Operating Circuit
D1D2
D3D4
R1
R2R3
MXL1543
RXD RXC TXDTXC SCTE
D1D2
D3
R1
R2R3
MXL1544
MAX3175
CTS DSR RTSDTRDCD
RXC B
RXD A (104)
RXD B
SG (102)
SHIELD (101)
RTS A (105)
RTS B
DTR A (108)
DTR B
DCD A (107)
DCD B
DSR A (109)
CTS A (106)
DSR B
CTS B
LL A (141)
TXD B
SCTE A (113)
SCTE B
TXC A (114)
TXC B
TXD A (103)
DB-25 CONNECTOR
13
R4
LL
RXC A (115)
18 5 10 8 22 6 23 20 19 4 1 7 16 3 9 17 12 15 11 24 14 2
MXL1344A
Pin Configuration appears at end of data sheet.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
MXL1544/MAX3175
+5V Multiprotocol, Software-Selectable
Control Transceivers
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
CC
= +5V, V
DD
= +6.8V, V
EE
= -5.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
All Voltages to GND Unless Otherwise Noted
Supply Voltages
V
CC
.......................................................................-0.3V to +6V
V
DD
....................................................................-0.3V to +7.2V
V
EE
........................................................................+0.3V to -7V
V
DD
to V
EE
(Note 1)............................................................13V
Logic Input Voltage
M0, M1, M2, DCE/DTE, INVERT, T_IN..................-0.3V to +6V
Logic Output Voltage
R_OUT....................................................-0.3V to (V
CC
+ 0.3V)
Transmitter Outputs
T_OUT_, T_OUT_/R_IN........................................-15V to +15V
Short-Circuit Duration.............................................Continuous
Receiver Inputs
R_IN_, T_OUT_/R_IN_ .........................................-15V to +15V
Continuous Power Dissipation (T
A
= +70°C)
28-Pin SSOP (derate 11.1mW/°C above +70°C) .........889mW
Operating Temperature Range...............................0°C to +70°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
POWER SUPPLIES
RS-530, RS-530A, X.21, no load 2.7
RS-530, RS-530A, X.21, full load 95 120
V.28, no load 1 2
V.28, full load 1 2
mA
V
C C
S up p l y C ur r ent ( D C E
M od e) ( D i g i tal Inp uts = G N D or
V
C C
) ( Tr ansm i tter s O utp uts
S tati c)
I
CC
No-cable mode, Invert = V
C C
0.5 10 µA
RS-530, RS-530A, X.21, no load 2.1
RS-530, X.21, full load 14
RS-530A, full load 25
V.28, no load 1
V.28, full load 12
mA
V
EE
Supply Current (DCE
Mode) (Digital Inputs = GND
or V
CC
) (Transmitters Outputs
Static)
I
EE
No-cable mode 0.5 µA
RS-530, RS-530A, X.21, no load 0.6
RS-530, RS-530A, X.21, full load 1
V.28, no load 1
V.28, full load 12
mA
V
D D
S up p l y C ur r ent ( D C E
M od e) ( D i g i tal Inp uts = G N D or
V
C C
) ( Tr ansm i tter s O utp uts
S tati c)
I
DD
No-cable mode 0.5 µA
RS-530, RS-530A, X.21, full load 300
Internal Power Dissipation
(DCE Mode)
P
D
V.28, full load 54
mW
LOGIC INPUTS (M0, M1, M2, DCE/DTE, INVERT, T1IN, T2IN, T3IN, T4IN)
Input High Voltage V
IH
2.0 V
Input Low Voltage V
IL
0.8 V
T1IN, T2IN, T3IN, T4IN ±10
M0, M1, M2, DCE/DTE, INVERT =
GND
-100 -50 -30
Logic Input Current I
IN
M0, M1, M2, DCE/DTE, INVERT =
V
CC
±10
µA
Note 1: V
DD
and V
EE
- can have maximum magnitude of 7.2V and 7V, respectively, but their difference cannot exceed 13V.
MXL1544/MAX3175
+5V Multiprotocol, Software-Selectable
Control Transceivers
_______________________________________________________________________________________ 3
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
LOGIC OUTPUTS (R1OUT, R2OUT, R3OUT, R4OUT)
Output High Voltage V
OH
I
SOURCE
= 4mA 3 4.5 V
Output Low Voltage V
OL
I
SINK
= 4mA 0.3 0.8 V
Output Short-Circuit Current I
SC
0 V
OUT
V
CC
-50 50 mA
Output Pullup Current I
L
V
OUT
= 0, no-cable mode 70 µA
RECEIVER INPUTS
Receiver Glitch Rejection MAX3175 only 5 10 15 µs
V.11 TRANSMITTER
Open-Circuit Differential Output
Voltage
V
ODO
Op en ci r cui t, R = 1.95k ( Fi g ur e 1) ±5V
R = 50 (Figure 1), T
A
= +25°C
0.5
V
ODO
0.67
V
ODO
Loaded Differential Output
Voltage
V
ODL
R = 50 (Figure 1) ±2
V
Change in Magnitude of Output
Differential Voltage
V
OD
R = 50 (Figure 1) 0.2 V
Common-Mode Output Voltage V
OC
R = 50 (Figure 1) 3 V
Change in Magnitude of Output
Common-Mode Voltage
V
OC
R = 50 (Figure 1) 0.2 V
Short-Circuit Current I
SC
V
OUT
= GND 150 mA
Output Leakage Current I
Z
-0.25V < V
OUT
< +0.25V, power-off or no-
cable mode
±1 ±100 µA
Rise or Fall Time t
r
, t
f
R = 50 (Figures 2, 5) 2 15 25 ns
Transmitter Input to Output
t
PHL
,
t
PLH
R = 50 (Figures 2, 5) 50 75 ns
Data Skew
|t
PHL
-
t
PLH
|
(Figures 2, 5) 3 12 ns
Output-to-Output Skew (Figures 2, 5) 3 ns
V.11 RECEIVER
Differential Input Voltage V
TH
-7V V
CM
7V -200 200 mV
Input Hysteresis V
TH
-7V V
CM
7V 15 40 mV
Receiver Input Current I
IN
-10V V
A
,
B
10V ±0.66 mA
Receiver Input Resistance R
IN
-10V V
A
,
B
10V 15 30 k
Rise or Fall Time t
r
, t
f
(Figures 2, 6) 15 ns
MXL1544 50 80 ns
Receiver Input to Output
t
PHL
,
t
PLH
(Figures 2, 6)
MAX3175 10 µs
MXL1544 4 16 ns
Data Skew
|t
PHL
-
t
PLH
|
(Figures 2, 6)
MAX3175 1 µs
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V, V
DD
= +6.8V, V
EE
= -5.6V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)

MAX3175CAI+T

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
Interface - Specialized 5V Multiprotocol
Lifecycle:
New from this manufacturer.
Delivery:
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Payment:
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