19-4322; Rev 0; 10/08
RS-485 Transceivers with Low-Voltage
Logic Interface
0–MAX143E
General Description
Features
The MAX13430E–MAX13433E are full- and half-duplex
RS-485 transceivers that feature an adjustable low-volt-
age logic interface for operation in multivoltage systems.
This allows direct interfacing to low-voltage ASIC/FPGAs
without extra components. The MAX13430E–MAX13433E
♦ Wide +3V to +5V Input Supply Range
♦ Low-Voltage Logic Interface +1.62V (min)
♦ Ultra-Low Supply Current in Shutdown Mode
10µA I
(max), 1µA I (max)
L
CC
RS-485 transceivers operate with a V
voltage supply
CC
from +3V to +5V. The low-voltage logic interface operates
with a voltage supply from +1.62V to V
♦ Thermal Shutdown Protection
.
CC
♦ Hot-Swap Input Structures on DE and RE
The MAX13430E/MAX13432E feature reduced slew-
rate drivers that minimize EMI and reduce reflections
caused by improperly terminated cables, allowing
error-free data transmission up to 500kbps. The
MAX13431E/MAX13433E driver slew rates are not limit-
ed, enabling data transmission up to 16Mbps. The
MAX13430E/MAX13431E are intended for half-duplex
communications, and the MAX13432E/MAX13433E are
intended for full-duplex communications.
♦ 1/8-Unit Load Allows Up to 256 Transceivers on
the Bus
♦ Enhanced Slew-Rate Limiting
(MAX13430E/MAX13432E)
♦ Extended ESD Protection for RS-485 I/O Pins
30ꢀV Human Body Model
15ꢀV Air-ꢁap Discharge per IEC 61000-4-2
10ꢀV Contact Discharge per IEC 61000-4-2
The MAX13430E/MAX13431E are available in 10-pin
®
µMAX and 10-pin TDFN packages. The MAX13432E/
MAX13433E are available in 14-pin TDFN and 14-pin
SO packages.
♦ Extended -40°C to +85°C Operating Temperature
Range
Applications
♦ Space-Saving TDFN and µMAX Pacꢀages
Industrial Control Systems
Portable Industrial Equipment
Motor Control
Pin Configurations and Functional Diagrams appear at end
of data sheet.
HVAC
Ordering Information/Selector Guide
FULL/HALF DATA RATE SLEW RATE TRANSCEIVERS
TOP
MARK
PACKAꢁE
CODE
PART
PIN-PACKAꢁE
DUPLEX
(Mbps)
LIMITED
ON BUS
10 TDFN-EP*
(3mm x 3mm)
MAX13430EETB+
MAX13430EEUB+**
MAX13431EETB+
Half
0.5
Yes
256
AUS
—
T1033-1
U10-2
10 µMAX
(3mm x 3mm)
Half
Half
0.5
16
Yes
No
256
256
10 TDFN-EP*
(3mm x 3mm)
AUT
T1033-1
10 µMAX
(3mm x 3mm)
MAX13431EEUB+**
MAX13432EESD+
MAX13432EETD+**
MAX13433EESD+
MAX13433EETD+**
Half
Full
Full
Full
Full
16
0.5
0.5
16
No
Yes
Yes
No
256
256
256
256
256
—
—
U10-2
S14-1
14 SO
14 TDFN-EP*
(3mm x 3mm)
AEG
—
T1433-2
S14-1
14 SO
14 TDFN-EP**
(3mm x 3mm)
16
No
AEH
T1433-2
Note: All devices are specified over the extended -40°C to +85°C operating temperature range.
+Denotes a lead-free/RoHS-compliant package.
*EP = Exposed pad.
**Future product—contact factory for availability.
µMAX is a registered trademark of Maxim Integrated Products, Inc.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.