19-3590; Rev 1; 4/05
+5.0V, ±15kV ESD-Protected, Fail-Safe,
Hot-Swap, RS-485/RS-422 Transceivers
General Description
The MAX13080E–MAX13089E +5.0V, ±15kV ESD-protect-
ed, RS-485/RS-422 transceivers feature one driver and
one receiver. These devices include fail-safe circuitry,
guaranteeing a logic-high receiver output when receiver
inputs are open or shorted. The receiver outputs a logic-
high if all transmitters on a terminated bus are disabled
(high impedance). The MAX13080E–MAX13089E include
a hot-swap capability to eliminate false transitions on the
bus during power-up or hot insertion.
The MAX13080E/MAX13081E/MAX13082E feature
reduced slew-rate drivers that minimize EMI and
reduce reflections caused by improperly terminated
cables, allowing error-free data transmission up to
250kbps. The MAX13083E/MAX13084E/MAX13085E
also feature slew-rate-limited drivers but allow transmit
speeds up to 500kbps. The MAX13086E/MAX13087E/
MAX13088E driver slew rates are not limited, making
transmit speeds up to 16Mbps possible. The
MAX13089E slew rate is pin selectable for 250kbps,
500kbps, and 16Mbps.
The MAX13082E/MAX13085E/MAX13088E are intended
for half-duplex communications, and the MAX13080E/
MAX13081E/MAX13083E/MAX13084E/MAX13086E/
MAX13087E are intended for full-duplex communica-
tions. The MAX13089E is selectable for half-duplex or
full-duplex operation. It also features independently
programmable receiver and transmitter output phase
through separate pins.
The MAX13080E–MAX13089E transceivers draw 1.2mA
of supply current when unloaded or when fully loaded
with the drivers disabled. All devices have a 1/8-unit
load receiver input impedance, allowing up to 256
transceivers on the bus.
The MAX13080E/MAX13083E/MAX13086E/MAX13089E
are available in 14-pin PDIP and 14-pin SO packages.
The MAX13081E/MAX13082E/MAX13084E/MAX13085E/
MAX13087E/MAX13088E are available in 8-pin PDIP and
8-pin SO packages. The devices operate over the com-
mercial, extended, and automotive temperature ranges.
♦
+5.0V Operation
♦
Extended ESD Protection for RS-485/RS-422 I/O Pins
±15kV Human Body Model
♦
True Fail-Safe Receiver While Maintaining
EIA/TIA-485 Compatibility
♦
Hot-Swap Input Structures on DE and
RE
♦
Enhanced Slew-Rate Limiting Facilitates Error-
Free Data Transmission
(MAX13080E–MAX13085E/MAX13089E)
♦
Low-Current Shutdown Mode (Except
MAX13081E/MAX13084E/MAX13087E)
♦
Pin-Selectable Full-/Half-Duplex Operation
(MAX13089E)
♦
Phase Controls to Correct for Twisted-Pair
Reversal (MAX13089E)
♦
Allow Up to 256 Transceivers on the Bus
♦
Available in Industry-Standard 8-Pin SO Package
Features
MAX13080E–MAX13089E
Ordering Information
PART
MAX13080ECPD
MAX13080ECSD
MAX13080EEPD
MAX13080EESD
MAX13080EAPD
MAX13080EASD
TEMP RANGE
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
-40°C to +125°C
-40°C to +125°C
PIN-
PACKAGE
14 PDIP
14 SO
14 PDIP
14 SO
14 PDIP
14 SO
PKG
CODE
P14-3
S14-2
P14-3
S14-2
P14-3
S14-2
Applications
Utility Meters
Lighting Systems
Industrial Control
Telecom
Security Systems
Instrumentation
Profibus
Ordering Information continued at end of data sheet.
Selector Guide, Pin Configurations, and Typical Operating
Circuits appear at end of data sheet.
________________________________________________________________
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.
+5.0V, ±15kV ESD-Protected, Fail-Safe,
Hot-Swap, RS-485/RS-422 Transceivers
MAX13080E–MAX13089E
ABSOLUTE MAXIMUM RATINGS
(All Voltages Referenced to GND)
Supply Voltage (V
CC
).............................................................+6V
Control Input Voltage (RE, DE, SLR,
H/F, TXP, RXP)......................................................-0.3V to +6V
Driver Input Voltage (DI)...........................................-0.3V to +6V
Driver Output Voltage (Z, Y, A, B) .............................-8V to +13V
Receiver Input Voltage (A, B)....................................-8V to +13V
Receiver Input Voltage
Full Duplex (A, B) ..................................................-8V to +13V
Receiver Output Voltage (RO)....................-0.3V to (V
CC
+ 0.3V)
Driver Output Current .....................................................±250mA
Continuous Power Dissipation (T
A
= +70°C)
8-Pin SO (derate 5.88mW/°C above +70°C) .................471mW
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) .....727mW
14-Pin SO (derate 8.33mW/°C above +70°C) ...............667mW
14-Pin Plastic DIP (derate 10.0mW/°C above +70°C) ...800mW
Operating Temperature Ranges
MAX1308_EC_ _ .................................................0°C to +75°C
MAX1308_EE_ _ ..............................................-40°C to +85°C
MAX1308_EA_ _ ............................................-40°C to +125°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
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
= +5.0V ±10%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5.0V and T
A
= +25°C.) (Note 1)
PARAMETER
DRIVER
V
CC
Supply-Voltage Range
Differential Driver Output
Change in Magnitude of
Differential Output Voltage
Driver Common-Mode Output
Voltage
Change in Magnitude of
Common-Mode Voltage
Input-High Voltage
Input-Low Voltage
Input Hysteresis
Input Current
Input Impedance First Transition
Input Current
SRL Input-High Voltage
SRL Input-Middle Voltage
SRL Input-Low Voltage
SRL Input Current
Output Leakage (Y and Z)
Full Duplex
I
O
SRL = V
CC
SRL = GND
DE = GND,
V
CC
= GND or V
CC
V
IN
= +12V
V
IN
= -7V
-100
-75
125
I
IN2
V
CC
R
L
= 100Ω (RS-422), Figure 1
V
OD
R
L
= 54Ω (RS-485), Figure 1
No load
∆V
OD
V
OC
∆V
OC
V
IH
V
IL
V
HYS
I
IN1
R
L
= 100Ω or 54Ω, Figure 1 (Note 2)
R
L
= 100Ω or 54Ω, Figure 1
R
L
= 100Ω or 54Ω, Figure 1 (Note 2)
DE, DI,
RE,
TXP, RXP, H/F
DE, DI,
RE,
TXP, RXP, H/F
DE, DI,
RE,
TXP, RXP, H/F
DE, DI,
RE
DE
TXP, RXP, H/F internal pulldown
1
10
V
CC
- 0.4
V
CC
x 0.3
V
CC
x 0.7
0.4
75
100
±1
10
40
3
0.8
V
CC
/ 2
4.5
3
2
5.5
V
CC
V
CC
V
CC
0.2
3
0.2
V
V
V
V
V
mV
µA
kΩ
µA
V
V
V
µA
µA
V
V
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
2
_______________________________________________________________________________________
+5.0V, ±15kV ESD-Protected, Fail-Safe,
Hot-Swap, RS-485/RS-422 Transceivers
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5.0V ±10%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5.0V and T
A
= +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
0
≤
V
OUT
≤
+12V (Note 3)
-7V
≤
V
OUT
≤
V
CC
(Note 3)
Driver Short-Circuit Output
Current
I
OSD
0
≤
V
OUT
≤
+12V, +85°C
≤
T
A
≤
+125°C
(Note 3)
-7V
≤
V
OUT
≤
V
CC
, +85°C
≤
T
A
≤
+125°C
(Note 3)
Driver Short-Circuit Foldback
Output Current
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
Input Current (A and B)
RECEIVER
Receiver Differential Threshold
Voltage
Receiver Input Hysteresis
RO Output-High Voltage
RO Output-Low Voltage
Three-State Output Current at
Receiver
Receiver Input Resistance
Receiver Output Short-Circuit
Current
SUPPLY CURRENT
No load,
RE
= 0, DE = V
CC
Supply Current
Supply Current in Shutdown
Mode
ESD PROTECTION
Human Body Model
ESD Protection for Y, Z, A, and B
Contact Discharge
IEC 61000-4-2
±15
±6
kV
kV
I
CC
No load,
RE
= V
CC
, DE = V
CC
No load,
RE
= 0, DE = 0
I
SHDN
RE
= V
CC
, DE = GND
1.2
1.2
1.2
2.8
1.8
1.8
1.8
10
µA
mA
V
TH
∆V
TH
V
OH
V
OL
I
OZR
R
IN
I
OSR
-7V
≤
V
CM
≤
+12V
V
A
+ V
B
= 0
I
O
= -1mA
I
O
= 1mA
0
≤
V
O
≤
V
CC
-7V
≤
V
CM
≤
+12V
0V
≤
V
RO
≤
V
CC
96
±110
V
CC
- 0.6
0.4
±
1
-200
-125
15
-50
mV
mV
V
V
µA
kΩ
mA
I
OSDF
T
TS
T
TSH
I
A, B
DE = GND,
V
CC
= GND or V
CC
V
IN
= +12V
V
IN
= -7V
-100
(V
CC
- 1V)
≤
V
OUT
≤
+12V (Note 3)
-7V
≤
V
OUT
≤
+1V (Note 3)
175
15
125
MIN
40
-250
40
-270
20
-20
TYP
MAX
250
-40
270
-40
mA
°C
°C
µA
mA
UNITS
MAX13080E–MAX13089E
_______________________________________________________________________________________
3
+5.0V, ±15kV ESD-Protected, Fail-Safe,
Hot-Swap, RS-485/RS-422 Transceivers
MAX13080E–MAX13089E
DRIVER SWITCHING CHARACTERISTICS
MAX13080E/MAX13081E/MAX13082E/MAX13089E WITH SRL = UNCONNECTED (250kbps)
(V
CC
= +5.0V ±10%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5.0V and T
A
= +25°C.)
PARAMETER
Driver Propagation Delay
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
Time to Shutdown
t
DZH
t
DZL
t
DLZ
t
DHZ
Figure 4
Figure 5
Figure 5
Figure 4
SYMBOL
t
DPLH
t
DPHL
t
R ,
t
F
t
DSKEW
CONDITIONS
C
L
= 50pF, R
L
= 54Ω, Figures 2 and 3
C
L
= 50pF, R
L
= 54Ω, Figures 2 and 3
C
L
= 50pF, R
L
= 54Ω, Figures 2 and 3
250
2500
2500
100
100
5500
5500
50
340
700
MIN
350
350
400
TYP
MAX
1800
1800
1900
250
UNITS
ns
ns
ns
kbps
ns
ns
ns
ns
ns
ns
ns
t
DZH(SHDN)
Figure 4
t
DZL(SHDN)
Figure 5
t
SHDN
RECEIVER SWITCHING CHARACTERISTICS
MAX13080E/MAX13081E/MAX13082E/MAX13089E WITH SRL = UNCONNECTED (250kbps)
(V
CC
= +5.0V ±10%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5.0V and T
A
= +25°C.)
PARAMETER
Receiver Propagation Delay
Receiver Output Skew
|t
RPLH
- t
RPHL
|
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
Time to Shutdown
t
RZL
t
RZH
t
RLZ
t
RHZ
Figure 8
Figure 8
Figure 8
Figure 8
SYMBOL
t
RPLH
t
RPHL
t
RSKEW
CONDITIONS
C
L
= 15pF, Figures 6 and 7
C
L
= 15pF, Figures 6 and 7
250
50
50
50
50
5500
5500
50
340
700
MIN
TYP
MAX
200
200
30
UNITS
ns
ns
kbps
ns
ns
ns
ns
ns
ns
ns
t
RZH(SHDN)
Figure 8
t
RZL(SHDN)
Figure 8
t
SHDN
4
_______________________________________________________________________________________
+5.0V, ±15kV ESD-Protected, Fail-Safe,
Hot-Swap, RS-485/RS-422 Transceivers
DRIVER SWITCHING CHARACTERISTICS
MAX13083E/MAX13084E/MAX13085E/MAX13089E WITH SRL = V
CC
(500kbps)
(V
CC
= +5.0V ±10%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5.0V and T
A
= +25°C.)
PARAMETER
Driver Propagation Delay
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
Time to Shutdown
t
DZH
t
DZL
t
DLZ
t
DHZ
Figure 4
Figure 5
Figure 5
Figure 4
SYMBOL
t
DPLH
t
DPHL
t
R ,
t
F
t
DSKEW
CONDITIONS
C
L
= 50pF, R
L
= 54Ω, Figures 2 and 3
C
L
= 50pF, R
L
= 54Ω, Figures 2 and 3
C
L
= 50pF, R
L
= 54Ω, Figures 2 and 3
500
2500
2500
100
100
5500
5500
50
340
700
MIN
200
200
250
TYP
MAX
1000
1000
900
140
UNITS
ns
ns
ns
kbps
ns
ns
ns
ns
ns
ns
ns
MAX13080E–MAX13089E
t
DZH(SHDN)
Figure 4
t
DZL(SHDN)
Figure 5
t
SHDN
RECEIVER SWITCHING CHARACTERISTICS
MAX13083E/MAX13084E/MAX13085E/MAX13089E WITH SRL = V
CC
(500kbps)
(V
CC
= +5.0V ±10%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5.0V and T
A
= +25°C.)
PARAMETER
Receiver Propagation Delay
Receiver Output Skew
|t
RPLH
- t
RPHL
|
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
Time to Shutdown
t
RZL
t
RZH
t
RLZ
t
RHZ
Figure 8
Figure 8
Figure 8
Figure 8
SYMBOL
t
RPLH
t
RPHL
t
RSKEW
CONDITIONS
C
L
= 15pF, Figures 6 and 7
C
L
= 15pF, Figures 6 and 7
500
50
50
50
50
5500
5500
50
340
700
MIN
TYP
MAX
200
200
30
UNITS
ns
ns
kbps
ns
ns
ns
ns
ns
ns
ns
t
RZH(SHDN)
Figure 8
t
RZL(SHDN)
Figure 8
t
SHDN
_______________________________________________________________________________________
5
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