AVAILAB
LE
MAX13430E–MAX13433E
RS-485 Transceivers with Low-Voltage
Logic Interface
General Description
Features
♦
Wide +3V to +5V Input Supply Range
♦
Low-Voltage Logic Interface +1.62V (min)
♦
Ultra-Low Supply Current in Shutdown Mode
10µA I
CC
(max), 1µA I
L
(max)
♦
Thermal Shutdown Protection
♦
Hot-Swap Input Structures on DE and
RE
♦
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
±30kV Human Body Model
±15kV Air-Gap Discharge per IEC 61000-4-2
±10kV Contact Discharge per IEC 61000-4-2
♦
Extended -40°C to +85°C Operating Temperature
Range
♦
Space-Saving TDFN and µMAX Packages
Typical Application Circuits appears at end of data sheet.
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
RS-485 transceivers operate with a V
CC
voltage supply
from +3V to +5V. The low-voltage logic interface operates
with a voltage supply from +1.62V to V
CC
.
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.
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.
Applications
Industrial Control Systems
Portable Industrial
Equipment
Motor Control
HVAC
Ordering Information/Selector Guide
PART
MAX13430EETB+
MAX13430EEUB+
MAX13431EETB+
MAX13431EEUB+
MAX13432EESD+
MAX13432EETD+
MAX13433EESD+
MAX13433EESD/V+
MAX13433EETD+
FULL/HALF DATA RATE
(Mbps)
Functional
DUPLEX
Diagrams
PIN-PACKAGE
10 TDFN-EP*
(3mm x 3mm)
10 μMAX
(3mm x 3mm)
10 TDFN-EP*
(3mm x 3mm)
10 μMAX
(3mm x 3mm)
14 SO
14 TDFN-EP*
(3mm x 3mm)
14 SO
14 SO
14 TDFN-EP*
(3mm x 3mm)
Half
Half
Half
Half
Full
Full
Full
Full
Full
0.5
0.5
16
16
0.5
0.5
16
16
16
SLEW RATE
LIMITED
Yes
Yes
No
No
Yes
Yes
No
No
No
TRANSCEIVERS
ON BUS
256
256
256
256
256
256
256
256
256
TOP
MARK
AUS
—
AUT
—
—
AEG
—
—
AEH
PACKAGE
CODE
T1033-1
U10-2
T1033-1
U10-2
S14-1
T1433-2
S14-1
S14-1
T1433-2
Note:
All devices are specified over the extended -40°C to +85°C operating temperature range.
+Denotes
a lead(Pb)-free/RoHS-compliant package.
Pin Configurations appear at end of data sheet.
*EP
= Exposed pad.
Functional Diagrams continued at end of data sheet.
/V denotes an automotive qualified part.
UCSP is aatrademark of Maxim Integrated Products, Inc.
µMAX is registered trademark of Maxim Integrated Products, Inc.
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
19-4322; Rev 2; 5/10
MAX13430E–MAX13433E
RS-485 Transceivers with Low-Voltage
Logic Interface
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
Supply Voltage (V
CC
) ...............................................-0.3V to +6V
Logic Supply Voltage (V
L )
......................................-0.3V to +6V
Control Input Voltage (RE) .............................-0.3V to (V
L
+0.3V)
Control Input Voltage (DE) ......................................-0.3V to +6V
Driver Input Voltage (DI) ..........................................-0.3V to +6V
Driver Output Voltage (Y, Z, A, B) ............................-8V to +13V
Receiver Input Voltage (A, B)
(MAX13430E/MAX13431E)....................................-8V to +13V
Receiver Input Voltage (A, B)
(MAX13432E/MAX13433E)..................................-25V to +25V
Receiver Output Voltage (RO) .....................-0.3V to (V
L
+ 0.3V)
Driver Output Current ....................................................±250mA
Short-Circuit Duration (RO, A, B) to GND .................Continuous
Power Dissipation (T
A
= +70°C)
10-Pin µMAX (derate 8.8mW/°C above +70°C) ..........707mW
10-Pin TDFN (derate 24.4mW/°C above +70°C) ......1951mW
14-Pin TDFN (derate 24.4mW/°C above +70°C) ......1951mW
14-Pin SO (derate 11.9mW/°C above +70°C) .............952mW
Junction-to-Ambient Thermal Resistance (θ
JA
) (Note 1)
10-Pin µMAX ...........................................................113.1°C/W
10-Pin TDFN .................................................................41°C/W
14-Pin TDFN ................................................................41°C/W
14-Pin SO ....................................................................84°C/W
Junction-to-Ambient Thermal Resistance (θ
JC
) (Note 1)
10-Pin µMAX ................................................................42°C/W
10-Pin TDFN ...................................................................9°C/W
14-Pin TDFN ..................................................................8°C/W
14-Pin SO ....................................................................34°C/W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ..................................................... +150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow) .......................................+260°C
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-
layer board. For detailed information on package thermal considerations, refer to
www.maxim-ic.com/thermal-tutorial.
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.
DC ELECTRICAL CHARACTERISTICS
(V
CC
= +3V to +5.5V, V
L
= +1.8V to V
CC
, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are V
CC
= +5V, V
L
= +1.8V at
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
POWER SUPPLY
V
CC
Supply-Voltage Range
V
L
Supply-Voltage Range
I
CC
Supply Current
I
CC
Supply Current in Shutdown
Mode
V
L
Supply Current
DRIVER
R
L
= 100Ω, V
CC
= +3V
Differential Driver Output
(Figure 1)
V
OD
R
L
= 54Ω, V
CC
= +3V
R
L
= 100Ω, V
CC
= +4.5V
R
L
= 54Ω, V
CC
= +4.5V
Change in Magnitude of
Differential Output Voltage
Driver Common-Mode Output
Voltage
Change in Magnitude of
Common-Mode Voltage
ΔV
OD
V
OC
ΔV
OC
R
L
= 100Ω or 54Ω, Figure 1 (Note 4)
R
L
= 100Ω or 54Ω, Figure 1
R
L
= 100Ω or 54Ω, Figure 1 (Note 4)
V
CC
/2
2
1.5
2.25
2.25
V
CC
V
CC
V
CC
V
CC
0.2
3
0.2
V
V
V
V
V
CC
V
L
I
CC
DE =
RE
= high, no load
DE =
RE
= low, no load
DE = high,
RE
= low, no load
DE = low,
RE
= high, no load
RO = no load
3
1.62
5.5
V
CC
2
V
V
mA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
I
SHDN
I
L
10
1
µA
µA
2
Maxim Integrated
MAX13430E–MAX13433E
RS-485 Transceivers with Low-Voltage
Logic Interface
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3V to +5.5V, V
L
= +1.8V to V
CC
, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are V
CC
= +5V, V
L
= +1.8V at
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
Output Leakage Current
(Y and Z)
Driver Short-Circuit Output
Current (Note 5)
Driver Short-Circuit Output
Foldback Current (Note 5)
Thermal Shutdown Threshold
Thermal Shutdown Hysteresis
RECEIVER
Input Current (A and B)
Receiver Differential Threshold
Voltage
Receiver Input Hysteresis
Receiver Input Resistance
LOGIC INTERFACE
Input High Logic Level
(DI, DE,
RE)
Input Low Logic Level
(DI, DE,
RE)
Input Current (DI, DE,
RE)
Input Impedance on First
Transition
Output High Logic Level (RO)
Output Low Logic Level (RO)
Receiver Three-State Output
Current (RO)
Receiver Output Short-Circuit
Current (RO)
ESD PROTECTION
IEC 61000-4-2 Air Gap Discharge
A, B, Y, Z to GND
All Other Pins
(Except A, B, Y, and Z)
IEC 61000-4-2 Contact Discharge
Human Body Model
Human Body Model
±15
±10
±30
±2
kV
kV
V
IH
V
IL
I
IN
R
DE
,
RE
V
OH
V
OL
I
OZR
I
OSR
I
O
= -1mA, V
A
- V
B
= V
TH
I
O
= 1mA, V
A
- V
B
= -V
TH
0
≤
V
RO
≤
V
L
0
≤
V
RO
≤
V
L
-1
-110
0.01
V
DI
= V
DE
= V
RE
= V
L
= +5.5V
1
V
L
- 0.4
0.4
+1
+110
2/3 x
V
L
1/3 x
V
L
±1
10
V
V
µA
kΩ
V
V
µA
mA
I
A, B
V
TH
ΔV
TH
R
IN
DE = GND,
V
CC
= V
GND
or +5.5V
-7V
≤
V
CM
≤
+12V
V
CM
= 0
-7V
≤
V
CM
≤
+12V
96
V
CM
= +12V
V
CM
= -7V
-100
-200
15
-50
125
µA
mV
mV
kΩ
SYMBOL
I
OLK
I
OSD
I
OSDF
T
TS
T
TSH
CONDITIONS
DE = GND,
V
CC
= V
GND
or +5.5V
0
≤
V
OUT
≤
+12V
-7V
≤
V
OUT
≤
V
CC
(V
CC
- 1V)
≤
V
OUT
≤
+12V
-7V
≤
V
OUT
≤
+1V
+150
15
-250
15
-15
V
IN
= +12V
V
IN
= -7V
-100
+250
MIN
TYP
MAX
125
UNITS
µA
mA
mA
°C
°C
Maxim Integrated
3
MAX13430E–MAX13433E
RS-485 Transceivers with Low-Voltage
Logic Interface
SWITCHING CHARACTERISTICS (MAX13431E/MAX13433E (16Mbps))
(V
CC
= +3V to +5.5V, V
L
= +1.8V to V
CC
, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are V
CC
= +5V, V
L
= +1.8V at
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
DRIVER
Driver Propagation Delay
(Figures 2 and 3)
Driver Differential Output Rise or
Fall Time
Differential Driver Output Skew
|t
DPLH
- t
DPHL
|
Maximum Data Rate
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Driver Enable from Shutdown
to Output High
Driver Enable from Shutdown
to Output Low
RECEIVER
Receiver Propagation Delay
(Figures 6 and 7)
Receiver Output Skew
Maximum Data Rate
Receiver Enable to Output Low
Receiver Enable to Output High
Receiver Disable Time from Low
Receiver Disable Time from High
Receiver Enable from
Shutdown to Output High
Receiver Enable from
Shutdown to Output Low
DRIVER/RECEIVER
Time to Shutdown
t
SHDN
50
340
700
ns
t
RZL
t
RZH
t
RLZ
t
RHZ
Figure 8
Figure 8
Figure 8
Figure 8
t
RPLH
t
RPHL
t
RSKEW
C
L
= 15pF
C
L
= 15pF, Figures 6 and 7
16
50
50
50
50
5
5
80
80
13
ns
ns
Mbps
ns
ns
ns
ns
µs
µs
t
DZH
t
DZL
t
DLZ
t
DHZ
C
L
= 50pF, R
L
= 500Ω, Figure 4
C
L
= 50pF, R
L
= 500Ω, Figure 5
C
L
= 50pF, R
L
= 500Ω, Figure 4
C
L
= 50pF, R
L
= 500Ω, Figure 5
t
DPLH
t
DPHL
t
R
, t
F
t
DSKEW
C
L
= 50pF, R
DIFF
= 54Ω
C
L
= 50pF, R
L
= 54Ω, Figures 2 and 3
C
L
= 50pF, R
L
= 54Ω, Figures 2 and 3
16
150
150
100
120
5
5
50
50
15
8
ns
ns
ns
Mbps
ns
ns
ns
ns
µs
µs
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
t
DZH(SHDN)
C
L
= 50pF, R
L
= 500Ω, Figure 4
t
DZL(SHDN)
C
L
= 50pF, R
L
= 500Ω, Figure 5
t
RZH(SHDN)
Figure 8
t
RZL(SHDN)
Figure 8
4
Maxim Integrated
MAX13430E–MAX13433E
RS-485 Transceivers with Low-Voltage
Logic Interface
SWITCHING CHARACTERISTICS (MAX13430E/MAX13432E (500kbps))
(V
CC
= +3V to +5.5V, V
L
= +1.8V to V
CC
, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are V
CC
= +5V, V
L
= +1.8V at
T
A
= +25°C.) (Notes 2, 3)
PARAMETER
DRIVER
Driver Propagation Delay
(Figures 2 and 3)
Driver Differential Output Rise or
Fall Time
Differential Driver Output Skew
|t
DPLH
- t
DPHL
|
Maximum Data Rate
Driver Enable to Output High
Driver Enable to Output Low
Driver Disable Time from Low
Driver Disable Time from High
Driver Enable from Shutdown
to Output High
Driver Enable from Shutdown
to Output Low
RECEIVER
Receiver Propagation Delay
(Figures 6 and 7)
Receiver Output Skew
Maximum Data Rate
Receiver Enable to
Output Low
Receiver Enable to
Output High
Receiver Disable Time
from Low
Receiver Disable Time
from High
Receiver Enable from
Shutdown to Output High
Receiver Enable from
Shutdown to Output Low
t
RZL
t
RZH
t
RLZ
t
RHZ
Figure 8
Figure 8
Figure 8
Figure 8
t
RPLH
t
RPHL
t
RSKEW
C
L
= 15pF
C
L
= 15pF, Figures 6 and 7
500
50
50
50
50
5
5
200
200
30
ns
ns
kbps
ns
ns
ns
ns
µs
µs
t
DZH
t
DZL
t
DLZ
t
DHZ
C
L
= 50pF, R
L
= 500Ω, Figure 4
C
L
= 50pF, R
L
= 500Ω, Figure 5
C
L
= 50pF, R
L
= 500Ω, Figure 4
C
L
= 50pF, R
L
= 500Ω, Figure 5
t
DPLH
t
DPHL
t
R
, t
F
t
DSKEW
C
L
= 50pF, R
L
= 54Ω
C
L
= 50pF, R
L
= 54Ω, Figures 2 and 3
C
L
= 50pF, R
L
= 54Ω, Figures 2 and 3
500
2.5
2.5
100
120
5
5
180
180
200
800
800
800
100
ns
ns
ns
kbps
µs
µs
ns
ns
µs
µs
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
t
DZH(SHDN)
C
L
= 50pF, R
L
= 500Ω, Figure 4
t
DZL(SHDN)
C
L
= 50pF, R
L
= 500Ω, Figure 5
t
RZH(SHDN)
Figure 8
t
RZL(SHDN)
Figure 8
Maxim Integrated
5
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