MXL1544 Datasheet, PDF (1/20 Pages) Maxim Integrated Products – +5V Multiprotocol, Software-Selectable Control Transceivers

19-1992; Rev 0; 4/01
+5V Multiprotocol, Software-Selectable
Control Transceivers
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
o MXL1544/MAX3175, MXL1543, MXL1344A Chipset
Is Pin Compatible with LTC1544, LTC1543,
LTC1344A Chipset
o Chipset Operates from a Single +5V Supply
o Software-Selectable DCE/DTE
o Supports V.28 (RS-232), V.10/V.11 (RS-449/V.36,
EIA-530, EIA-530A, X.21, RS-423) Protocols
o Flow-Through Pin Configuration
o True Fail-Safe Operation
o Low 0.5µA Shutdown Current (No-Cable Mode)
o 10µs Receiver Input Deglitching (MAX3175 Only)
o TUV-Certified NET1/NET2 and TBR1/TBR2
Compliant
Ordering Information
PART
MXL1544CAI
MAX3175CAI
TEMP. RANGE
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
28 SSOP
28 SSOP
Pin Configuration appears at end of data sheet.
LL CTS DSR
DCD DTR RTS
D4
R4
R3
R2
MXL1544 D3
R1 _MAX3175
D2
D1
RXD RXC
Typical Operating Circuit
TXC SCTE TXD
R3
R2
MXL1543 D3
R1
D2
D1
MXL1344A
18 13 5 10 8
22 6 23 20 19 4
1 7 16 3 9 17
12 15 11 24 14 2
DB-25 CONNECTOR
________________________________________________________________ Maxim Integrated Products 1
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.