MAX13089EESD+T - Maxim Integrated Products, Inc.

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.

Applications

Utility Meters

Lighting Systems

Industrial Control

Telecom

Security Systems

Instrumentation

Profibus

Features

♦+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

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

________________________________________________________________ Maxim Integrated Products 1

Ordering Information

19-3590; Rev 1; 4/05

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.

PART TEMP RANGE PIN-

PACKAGE

PKG

CODE

MAX13080ECPD 0°C to +70°C14 PDIP P14-3

MAX13080ECSD 0°C to +70°C14 SO S14-2

MAX13080EEPD -40°C to +85°C14 PDIP P14-3

MAX13080EESD -40°C to +85°C14 SO S14-2

MAX13080EAPD -40°C to +125°C14 PDIP P14-3

MAX13080EASD -40°C to +125°C14 SO S14-2

Selector Guide, Pin Configurations, and Typical Operating

Circuits appear at end of data sheet.

Ordering Information continued at end of data sheet.

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(VCC = +5.0V ±10%, TA= TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5.0V and TA= +25°C.) (Note 1)

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 Referenced to GND)

Supply Voltage (VCC).............................................................+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 (VCC + 0.3V)

Driver Output Current .....................................................±250mA

Continuous Power Dissipation (TA= +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

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

DRIVER

VCC Supply-Voltage Range VCC 4.5 5.5 V

RL = 100Ω (RS-422), Figure 1 3 VCC

RL = 54Ω (RS-485), Figure 1 2 VCC

Differential Driver Output VOD

No load VCC

Change in Magnitude of

Differential Output Voltage ∆VOD RL = 100Ω or 54Ω, Figure 1 (Note 2) 0.2 V

Driver Common-Mode Output

Voltage VOC RL = 100Ω or 54Ω, Figure 1 VCC / 2 3 V

Change in Magnitude of

Common-Mode Voltage ∆VOC RL = 100Ω or 54Ω, Figure 1 (Note 2) 0.2 V

Input-High Voltage VIH DE, DI, RE, TXP, RXP, H/F3V

Input-Low Voltage VIL DE, DI, RE, TXP, RXP, H/F0.8 V

Input Hysteresis VHYS DE, DI, RE, TXP, RXP, H/F100 mV

Input Current IIN1 DE, DI, RE ±1µA

Input Impedance First Transition DE 1 10 kΩ

Input Current IIN2 TXP, RXP, H/F internal pulldown 10 40 µA

SRL Input-High Voltage VCC - 0.4 V

SRL Input-Middle Voltage VCC x 0.3 VCC x 0.7 V

SRL Input-Low Voltage 0.4 V

SRL = VCC 75

SRL Input Current SRL = GND -75 µA

VIN = +12V 125

Output Leakage (Y and Z)

Full Duplex IODE = GND,

VCC = GND or VCC VIN = -7V -100 µA

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

_______________________________________________________________________________________ 3

DC ELECTRICAL CHARACTERISTICS (continued)

(VCC = +5.0V ±10%, TA= TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5.0V and TA= +25°C.) (Note 1)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

0 ≤ VOUT ≤ +12V (Note 3) 40 250

-7V ≤ VOUT ≤ VCC (Note 3) -250 -40

0 ≤ VOUT ≤ +12V, +85°C ≤ TA ≤ +125°C

(Note 3) 40 270

Driver Short-Circuit Output

Current IOSD

-7V ≤ VOUT ≤ VCC, +85°C ≤ TA ≤ +125°C

(Note 3) -270 -40

(VCC - 1V) ≤ VOUT ≤ +12V (Note 3) 20

Driver Short-Circuit Foldback

Output Current IOSDF -7V ≤ VOUT ≤ +1V (Note 3) -20 mA

Thermal-Shutdown Threshold TTS 175 °C

Thermal-Shutdown Hysteresis TTSH 15 °C

VIN = +12V 125

Input Current (A and B) IA, B DE = GND,

VCC = GND or VCC VIN = -7V -100 µA

RECEIVER

Receiver Differential Threshold

Voltage VTH -7V ≤ VCM ≤ +12V -200 -125 -50 mV

Receiver Input Hysteresis ∆VTH VA + VB = 0 15 mV

RO Output-High Voltage VOH IO = -1mA VCC - 0.6 V

RO Output-Low Voltage VOL IO = 1mA 0.4 V

Three-State Output Current at

Receiver IOZR 0 ≤ VO ≤ VCC ± 1µA

Receiver Input Resistance RIN -7V ≤ VCM ≤ +12V 96 kΩ

Receiver Output Short-Circuit

Current IOSR 0V ≤ VRO ≤ VCC ±110 mA

SUPPLY CURRENT

No load, RE = 0, DE = VCC 1.2 1.8

No load, RE = VCC, DE = VCC 1.2 1.8

Supply Current ICC

No load, RE = 0, DE = 0 1.2 1.8

Supply Current in Shutdown

Mode ISHDN RE = VCC, DE = GND 2.8 10 µA

ESD PROTECTION

Human Body Model ±15 kV

ESD Protection for Y, Z, A, and B Contact Discharge

IEC 61000-4-2 ±6 kV

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

4 _______________________________________________________________________________________

DRIVER SWITCHING CHARACTERISTICS

MAX13080E/MAX13081E/MAX13082E/MAX13089E WITH SRL = UNCONNECTED (250kbps)

(VCC = +5.0V ±10%, TA= TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5.0V and TA= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

tDPLH 350 1800

Driver Propagation Delay tDPHL

CL= 50pF, RL= 54Ω, Figures 2 and 3 350 1800 ns

Driver Differential Output Rise or

Fall Time tR , tFCL= 50pF, RL= 54Ω, Figures 2 and 3 400 1900 ns

Differential Driver Output Skew

|tDPLH - tDPHL|tDSKEW CL= 50pF, RL= 54Ω, Figures 2 and 3 250 ns

Maximum Data Rate 250 kbps

Driver Enable to Output High tDZH Figure 4 2500 ns

Driver Enable to Output Low tDZL Figure 5 2500 ns

Driver Disable Time from Low tDLZ Figure 5 100 ns

Driver Disable Time from High tDHZ Figure 4 100 ns

Driver Enable from Shutdown to

Output High tDZH

(

SHDN

)

Figure 4 5500 ns

Driver Enable from Shutdown to

Output Low tDZL

(

SHDN

)

Figure 5 5500 ns

Time to Shutdown tSHDN 50 340 700 ns

RECEIVER SWITCHING CHARACTERISTICS

MAX13080E/MAX13081E/MAX13082E/MAX13089E WITH SRL = UNCONNECTED (250kbps)

(VCC = +5.0V ±10%, TA= TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5.0V and TA= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

tRPLH 200

Receiver Propagation Delay tRPHL

CL = 15pF, Figures 6 and 7 200 ns

Receiver Output Skew

|tRPLH - tRPHL|tRSKEW CL = 15pF, Figures 6 and 7 30 ns

Maximum Data Rate 250 kbps

Receiver Enable to Output Low tRZL Figure 8 50 ns

Receiver Enable to Output High tRZH Figure 8 50 ns

Receiver Disable Time from Low tRLZ Figure 8 50 ns

Receiver Disable Time from High tRHZ Figure 8 50 ns

Receiver Enable from Shutdown

to Output High tRZH

(

SHDN

)

Figure 8 5500 ns

Receiver Enable from Shutdown

to Output Low tRZL

(

SHDN

)

Figure 8 5500 ns

Time to Shutdown tSHDN 50 340 700 ns

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

_______________________________________________________________________________________ 5

DRIVER SWITCHING CHARACTERISTICS

MAX13083E/MAX13084E/MAX13085E/MAX13089E WITH SRL = VCC (500kbps)

(VCC = +5.0V ±10%, TA= TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5.0V and TA= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

tDPLH 200 1000

Driver Propagation Delay tDPHL

CL = 50pF, RL = 54Ω, Figures 2 and 3 200 1000 ns

Driver Differential Output Rise or

Fall Time tR , tFCL = 50pF, RL = 54Ω, Figures 2 and 3 250 900 ns

Differential Driver Output Skew

|tDPLH - tDPHL|tDSKEW CL = 50pF, RL = 54Ω, Figures 2 and 3 140 ns

Maximum Data Rate 500 kbps

Driver Enable to Output High tDZH Figure 4 2500 ns

Driver Enable to Output Low tDZL Figure 5 2500 ns

Driver Disable Time from Low tDLZ Figure 5 100 ns

Driver Disable Time from High tDHZ Figure 4 100 ns

Driver Enable from Shutdown to

Output High tDZH

(

SHDN

)

Figure 4 5500 ns

Driver Enable from Shutdown to

Output Low tDZL

(

SHDN

)

Figure 5 5500 ns

Time to Shutdown tSHDN 50 340 700 ns

RECEIVER SWITCHING CHARACTERISTICS

MAX13083E/MAX13084E/MAX13085E/MAX13089E WITH SRL = VCC (500kbps)

(VCC = +5.0V ±10%, TA= TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5.0V and TA= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

tRPLH 200

Receiver Propagation Delay tRPHL

CL = 15pF, Figures 6 and 7 200 ns

Receiver Output Skew

|tRPLH - tRPHL|tRSKEW CL = 15pF, Figures 6 and 7 30 ns

Maximum Data Rate 500 kbps

Receiver Enable to Output Low tRZL Figure 8 50 ns

Receiver Enable to Output High tRZH Figure 8 50 ns

Receiver Disable Time from Low tRLZ Figure 8 50 ns

Receiver Disable Time from High tRHZ Figure 8 50 ns

Receiver Enable from Shutdown

to Output High tRZH

(

SHDN

)

Figure 8 5500 ns

Receiver Enable from Shutdown

to Output Low tRZL

(

SHDN

)

Figure 8 5500 ns

Time to Shutdown tSHDN 50 340 700 ns

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

6 _______________________________________________________________________________________

DRIVER SWITCHING CHARACTERISTICS

MAX13086E/MAX13087E/MAX13088E/MAX13089E WITH SRL = GND (16Mbps)

(VCC = +5.0V ±10%, TA= TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5.0V and TA= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

tDPLH 50

Driver Propagation Delay tDPHL

CL = 50pF, RL= 54Ω, Figures 2 and 3 50 ns

Driver Differential Output Rise or

Fall Time tR , tFCL = 50pF, RL= 54Ω, Figures 2 and 3 15 ns

Differential Driver Output Skew

|tDPLH - tDPHL|tDSKEW CL = 50pF, RL= 54Ω, Figures 2 and 3 8 ns

Maximum Data Rate 16 Mbps

Driver Enable to Output High tDZH Figure 4 150 ns

Driver Enable to Output Low tDZL Figure 5 150 ns

Driver Disable Time from Low tDLZ Figure 5 100 ns

Driver Disable Time from High tDHZ Figure 4 100 ns

Driver Enable from Shutdown to

Output High tDZH

(

SHDN

)

Figure 4 2200 ns

Driver Enable from Shutdown to

Output Low tDZL

(

SHDN

)

Figure 5 2200 ns

Time to Shutdown tSHDN 50 340 700 ns

RECEIVER SWITCHING CHARACTERISTICS

MAX13086E/MAX13087E/MAX13088E/MAX13089E WITH SRL = GND (16Mbps)

(VCC = +5.0V ±10%, TA= TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5.0V and TA= +25°C.)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

tRPLH 50 80

Receiver Propagation Delay tRPHL

CL = 15pF, Figures 6 and 7 50 80 ns

Receiver Output Skew

|tRPLH - tRPHL|tRSKEW CL = 15pF, Figures 6 and 7 13 ns

Maximum Data Rate 16 Mbps

Receiver Enable to Output Low tRZL Figure 8 50 ns

Receiver Enable to Output High tRZH Figure 8 50 ns

Receiver Disable Time from Low tRLZ Figure 8 50 ns

Receiver Disable Time from High tRHZ Figure 8 50 ns

Receiver Enable from Shutdown

to Output High tRZH

(

SHDN

)

Figure 8 2200 ns

Receiver Enable from Shutdown

to Output Low tRZL

(

SHDN

)

Figure 8 2200 ns

Time to Shutdown tSHDN 50 340 700 ns

Note 1: All currents into the device are positive. All currents out of the device are negative. All voltages are referred to device ground,

unless otherwise noted.

Note 2: ∆VOD and ∆VOC are the changes in VOD and VOC, respectively, when the DI input changes state.

Note 3: The short-circuit output current applies to peak current just prior to foldback current limiting. The short-circuit foldback output

current applies during current limiting to allow a recovery from bus contention.

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

_______________________________________________________________________________________ 7

0.80

0.90

1.50

1.10

1.00

1.20

1.30

1.40

1.60

-40 -10 5 20-25 35 50 9580 11065 125

SUPPLY CURRENT vs. TEMPERATURE

MAX13080E-89E toc01

TEMPERATURE (°C)

SUPPLY CURRENT (mA)

NO LOAD

DE = VCC

DE = 0

021345

OUTPUT CURRENT

vs. RECEIVER OUTPUT-HIGH VOLTAGE

MAX13080E-89E toc02

OUTPUT HIGH VOLTAGE (V)

OUTPUT CURRENT (mA)

021345

OUTPUT CURRENT

vs. RECEIVER OUTPUT-LOW VOLTAGE

MAX13080E-89E toc03

OUTPUT LOW VOLTAGE (V)

OUTPUT CURRENT (mA)

4.0

4.4

4.2

4.8

4.6

5.2

5.0

5.4

RECEIVER OUTPUT-HIGH VOLTAGE

vs. TEMPERATURE

MAX13080E-89E toc04

TEMPERATURE (°C)

OUTPUT HIGH VOLTAGE (V)

IO = -1mA

-40 -10520-25 35 50 9580 11065 125

0.1

0.7

0.3

0.2

0.4

0.5

0.6

0.8

RECEIVER OUTPUT-LOW VOLTAGE

vs. TEMPERATURE

MAX13080E-89E toc05

TEMPERATURE (°C)

OUTPUT LOW VOLTAGE (V)

IO = 1mA

-40 -10 5 20-25 35 50 9580 11065 125

100

120

140

160

012345

DRIVER DIFFERENTIAL OUTPUT CURRENT

vs. DIFFERENTIAL OUTPUT VOLTAGE

MAX13080E-89E toc06

DIFFERENTIAL OUTPUT VOLTAGE (V)

DIFFERENTIAL OUTPUT CURRENT (mA)

2.0

2.8

2.4

3.6

3.2

4.4

4.0

4.8

DRIVER DIFFERENTIAL OUTPUT

VOLTAGE vs. TEMPERATURE

MAX13080E-89E toc07

DIFFERENTIAL OUTPUT VOLTAGE (V)

RL = 54Ω

-40 -10 5 20-25 35 50 9580 11065 125

TEMPERATURE (°C)

100

120

140

180

160

200

-7 -5 -4-6 -3 -2 -1 0 1 2 3 54

OUTPUT CURRENT vs. TRANSMITTER

OUTPUT-HIGH VOLTAGE

MAX13080E-89E toc08

OUTPUT HIGH VOLTAGE (V)

OUTPUT CURRENT (mA)

100

120

140

160

180

200

042681012

OUTPUT CURRENT vs. TRANSMITTER

OUTPUT-LOW VOLTAGE

MAX13080E-89E toc09

OUTPUT-LOW VOLTAGE (V)

OUTPUT CURRENT (mA)

Typical Operating Characteristics

(VCC = +5.0V, TA = +25°C, unless otherwise noted.)

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

8 _______________________________________________________________________________________

SHUTDOWN CURRENT

vs. TEMPERATURE

MAX13080E-89E toc10

SHUTDOWN CURRENT (µA)

-40 -10 5 20-25 35 50 9580 11065 125

TEMPERATURE (°C)

600

800

700

1000

900

1100

1200

DRIVER PROPAGATION DELAY

vs. TEMPERATURE (250kbps)

MAX13080E-89E toc11

DRIVER PROPAGATION DELAY (ns)

tDPHL

tDPLH

-40 -10 5 20-25 35 50 9580 11065 125

TEMPERATURE (°C)

300

400

350

500

450

550

600

DRIVER PROPAGATION DELAY

vs. TEMPERATURE (500kbps)

MAX13080E-89E toc12

DRIVER PROPAGATION DELAY (ns)

tDPHL

tDPLH

-40 -10 5 20-25 35 50 9580 11065 125

TEMPERATURE (°C)

DRIVER PROPAGATION DELAY

vs. TEMPERATURE (16Mbps)

MAX13080E-89E toc13

DRIVER PROPAGATION DELAY (ns)

-40 -10 5 20-25 35 50 9580 11065 125

TEMPERATURE (°C)

tDPHL

tDPLH

100

120

140

160

180

RECEIVER PROPAGATION DELAY

vs. TEMPERATURE (250kpbs AND 500kbps)

MAX13080E-89E toc14

RECEIVER PROPAGATION DELAY (ns)

-40 -10 5 20-25 35 50 9580 11065 125

TEMPERATURE (°C)

tDPHL

tDPLH

100

120

140

160

180

RECEIVER PROPAGATION DELAY

vs. TEMPERATURE (16Mbps)

MAX13080E-89E toc15

RECEIVER PROPAGATION DELAY (ns)

-40 -10 5 20-25 35 50 9580 11065 125

TEMPERATURE (°C)

tDPHL

tDPLH

2µs/div

DRIVER PROPAGATION DELAY (250kbps)

2V/div

VY - VZ

5V/div

MAX13080E-89E toc16

RL = 100Ω

200ns/div

RECEIVER PROPAGATION DELAY

(250kbps AND 500kbps)

VA - VB

5V/div

2V/div

MAX13080E-89E toc17

RL = 100Ω

Typical Operating Characteristics (continued)

(VCC = +5.0V, TA = +25°C, unless otherwise noted.)

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

_______________________________________________________________________________________ 9

Test Circuits and Waveforms

400ns/div

DRIVER PROPAGATION DELAY (500kbps)

2V/div

MAX13080E-89E toc18

RL = 100Ω

VY - VZ

5V/div

10ns/div

DRIVER PROPAGATION DELAY (16Mbps)

2V/div

MAX13080E-89E toc19

RL = 100Ω

2V/div

40ns/div

RECEIVER PROPAGATION DELAY (16Mbps)

2V/div

MAX13080E-89E toc20

RL = 100Ω

2V/div

Typical Operating Characteristics (continued)

(VCC = +5.0V, TA = +25°C, unless otherwise noted.)

VOD

VOC

RL/2

Figure 1. Driver DC Test Load

VCC

VOD RLCL

Figure 2. Driver Timing Test Circuit

VCC

-VO

VCC/2

tDPLH tDPHL

1/2 VO

10%

90% 90%

1/2 VO

10%

VDIFF = V (Y) - V (Z)

VDIFF

tSKEW = | tDPLH - tDPHL |

Figure 3. Driver Propagation Delays

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

10 ______________________________________________________________________________________

Test Circuits and Waveforms (continued)

OUT

tDHZ

VCC

VCC / 2

0.25V

VOH

GENERATOR

0 OR VCC

50Ω

DOUT

tDZH, tDZH(SHDN)

VOM = (0 + VOH) / 2

RL = 500Ω

50pF

Figure 4. Driver Enable and Disable Times (tDHZ, tDZH, tDZH(SHDN))

VCC

OUT

tDLZ

VCC

VCC / 2

GENERATOR

0 OR VCC

50Ω

DOUT

tDZL, tDZL(SHDN)

VOM = (VOL + VCC) / 2

RL = 500Ω

50pF

VOL 0.25V

VCC

Figure 5. Driver Enable and Disable Times (tDZL, tDLZ, tDLZ(SHDN))

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

______________________________________________________________________________________ 11

Test Circuits and Waveforms (continued)

VID R

RECEIVER

OUTPUT

ATE

Figure 6. Receiver Propagation Delay Test Circuit

VOH

VCC/2

tRPLH

tRPHL

VOL

+1V

-1V

THE RISE TIME AND FALL TIME OF INPUTS A AND B < 4ns

Figure 7. Receiver Propagation Delays

S1 OPEN

S2 CLOSED

S3 = +1.5V

VCC

VOH

VOH / 2

S1 OPEN

S2 CLOSED

S3 = +1.5V

tRHZ

VCC

VOH

0.25V

VCC/2

S1 CLOSED

S2 OPEN

S3 = -1.5V

VCC

VOL

VCC

VCC/2

S1 CLOSED

S2 OPEN

S3 = -1.5V

tRLZ

VCC

VOL

VCC

0.25V

GENERATOR

VCC

+1.5V

1kΩ

15pF S2

50Ω

-1.5V R

VID

tRZH, tRZH(SHDN) tRZL, tRZL(SHDN)

(VOL + VCC) / 2

VCC/2

Figure 8. Receiver Enable and Disable Times

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

12 ______________________________________________________________________________________

Pin Description

MAX13080E

MAX13083E

MAX13086E

MAX13081E

MAX13084E

MAX13087E

MAX13082E

MAX13085E

MAX13088E

MAX13089E

FULL-DUPLEX

DEVICES

HALF-

DUPLEX

DEVICES

FULL-

DUPLEX

MODE

HALF-

DUPLEX

MODE

NAME FUNCTION

1, 8, 13 — — — — N.C. No Connect. Not internally connected, can be connected

to GND.

———11H/F

Half-/Full-Duplex Select Input. Connect H/F to VCC for

half-duplex mode; connect H/F to GND or leave

unconnected for full-duplex mode.

22122RO

Receiver Output. When RE is low and if (A - B) ≥ -50mV,

RO is high; if (A - B) ≤ -200mV, RO is low.

3—233RE

Receiver Output Enable. Drive RE low to enable RO; RO is

high impedance when RE is high. Drive RE high and DE

low to enter low-power shutdown mode. RE is a hot-swap

input (see the Hot-Swap Capability section for details).

4—344DE

Driver Output Enable. Drive DE high to enable driver

outputs. These outputs are high impedance when DE is

low. Drive RE high and DE low to enter low-power

shutdown mode. DE is a hot-swap input (see the Hot-

Swap Capability section for details).

53455DI

D r i ver Inp ut. W i th D E hi g h, a l ow on D I for ces noni nver ti ng

outp ut l ow and i nver ti ng outp ut hi g h. S i m i l ar l y, a hi g h on D I

for ces noni nver ti ng outp ut hi g h and i nver ti ng outp ut l ow .

— — — 6 6 SRL

Slew-Rate Limit Selector Input. Connect SRL to ground for

16Mbps communication rate; connect SRL to VCC for

500kbps communication rate. Leave SRL unconnected for

250kbps communication rate.

6, 7 4 5 7 7 GND Ground

— — — 8 8 TXP

Transmitter Phase. Connect TXP to ground or leave TXP

floating for normal transmitter phase/polarity. Connect TXP

to VCC to invert the transmitter phase/polarity.

9 5 — 9 — Y Noninverting Driver Output

————9Y

Noninverting Driver Output and Noninverting Receiver

Input*

10 6 — 10 — Z Inverting Driver Output

— — — — 10 Z Inverting Driver Output and Inverting Receiver Input*

11 7 — 11 — B Inverting Receiver Input

— — — — 11 B Receiver Input Resistors*

— — 7 — — B Inverting Receiver Input and Inverting Driver Output

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

______________________________________________________________________________________ 13

MAX13080E/MAX13083E/MAX13086E

Pin Description (continued)

MAX13080E

MAX13083E

MAX13086E

MAX13081E

MAX13084E

MAX13087E

MAX13082E

MAX13085E

MAX13088E

MAX13089E

FULL-DUPLEX

DEVICES

HALF-

DUPLEX

DEVICES

FULL-

DUPLEX

MODE

HALF-

DUPLEX

MODE

NAME FUNCTION

12 8 — 12 — A Noninverting Receiver Input

— — — — 12 A Receiver Input Resistors*

—— 6——A

Noninverting Receiver Input and Noninverting Driver

Output

— — — 13 13 RXP

Receiver Phase. Connect RXP to GND or leave RXP

unconnected for normal transmitter phase/polarity.

Connect RXP to VCC to invert receiver phase/polarity.

14 1 8 14 14 VCC Positive Supply VCC = +5.0V ±10%. Bypass VCC to GND

with a 0.1µF capacitor.

*MAX13089E only. In half-duplex mode, the driver outputs serve as receiver inputs. The full-duplex receiver inputs (A and B) still have a

1/8-unit load (96kΩ), but are not connected to the receiver.

TRANSMITTING

INPUTS OUTPUTS

RE DE DI Z Y

X1101

X1010

0 0 X High-Z High-Z

1 0 X Shutdown

RECEIVING

INPUTS OUTPUT

RE DE A, B RO

0X≥ -50mV 1

0X≤ -200mV 0

Open/

shorted 1

1 1 X High-Z

1 0 X Shutdown

MAX13081E/MAX13084E/MAX13086E/

MAX13087E

TRANSMITTING

INPUT OUTPUTS

DI Z Y

101

010

RECEIVING

INPUTS OUTPUT

A, B RO

≥ -50mV 1

≤ -200mV 0

Open/shorted 1

Function Tables

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

14 ______________________________________________________________________________________

MAX13082E/MAX13085E/MAX13088E

TRANSMITTING

INPUTS OUTPUTS

RE DE DI B/Z A/Y

X1101

X1010

0 0 X High-Z High-Z

1 0 X Shutdown

Function Tables (continued)

MAX13089E

TRANSMITTING

INPUTS OUTPUTS

TXP RE DE DI Z Y

0X1101

0X1010

1X1110

1X1001

X 0 0 X High-Z High-Z

X 1 0 X Shutdown

RECEIVING

INPUTS OUTPUTS

H/FRXP RE DE A, B Y, Z RO

0 0 0 X > -50mV X 1

0 0 0 X < -200mV X 0

0 1 0 X > -50mV X 0

0 1 0 X < -200mV X 1

1000X> -50mV 1

1000X< -200mV 0

1100X> -50mV 0

1100X< -200mV 1

0 0 0 X Open/shorted X 1

1000XOpen/shorted 1

0 1 0 X Open/shorted X 0

1100XOpen/shorted 0

X X 1 1 X X High-Z

X X 1 0 X X Shutdown

RECEIVING

INPUTS OUTPUTS

RE DE A-B RO

0X≥ -50mV 1

0X≤ -200mV 0

Open/

shorted 1

1 1 X High-Z

1 0 X Shutdown

X = Don’t care; shutdown mode, driver, and receiver outputs are high impedance.

Detailed Description

The MAX13080E–MAX13089E high-speed transceivers

for RS-485/RS-422 communication contain one driver

and one receiver. These devices feature fail-safe circuit-

ry, which guarantees a logic-high receiver output when

the receiver inputs are open or shorted, or when they are

connected to a terminated transmission line with all dri-

vers disabled (see the Fail-Safe section). The

MAX13080E/MAX13082E/MAX13083E/MAX13085E/

MAX13086E/MAX13088E/MAX13089E also feature a hot-

swap capability allowing line insertion without erroneous

data transfer (see the Hot Swap Capability section). The

MAX13080E/MAX13081E/MAX13082E feature reduced

slew-rate drivers that minimize EMI and reduce reflec-

tions caused by improperly terminated cables, allowing

error-free data transmission up to 250kbps. The

MAX13083E/MAX13084E/MAX13085E also offer slew-

rate limits allowing transmit speeds up to 500kbps. The

MAX13086E/MAX13087E/MAX13088Es’ driver slew rates

are not limited, making transmit speeds up to 16Mbps

possible. The MAX13089E’s slew rate is selectable

between 250kbps, 500kbps, and 16Mbps by driving a

selector pin with a three-state driver.

The MAX13082E/MAX13085E/MAX13088E are half-

duplex transceivers, while the MAX13080E/MAX13081E/

MAX13083E/MAX13084E/MAX13086E/MAX13087E are

full-duplex transceivers. The MAX13089E is selectable

between half- and full-duplex communication by driving

a selector pin (H/F) high or low, respectively.

All devices operate from a single +5.0V supply. Drivers

are output short-circuit current limited. Thermal-shutdown

circuitry protects drivers against excessive power dissi-

pation. When activated, the thermal-shutdown circuitry

places the driver outputs into a high-impedance state.

Receiver Input Filtering

The receivers of the MAX13080E–MAX13085E, and the

MAX13089E when operating in 250kbps or 500kbps

mode, incorporate input filtering in addition to input

hysteresis. This filtering enhances noise immunity with

differential signals that have very slow rise and fall

times. Receiver propagation delay increases by 25%

due to this filtering.

Fail-Safe

The MAX13080E family guarantees a logic-high receiver

output when the receiver inputs are shorted or open, or

when they are connected to a terminated transmission

line with all drivers disabled. This is done by setting the

receiver input threshold between -50mV and -200mV. If

the differential receiver input voltage (A - B) is greater

than or equal to -50mV, RO is logic-high. If (A - B) is less

than or equal to -200mV, RO is logic-low. In the case of a

terminated bus with all transmitters disabled, the receiv-

er’s differential input voltage is pulled to 0V by the termi-

nation. With the receiver thresholds of the MAX13080E

family, this results in a logic-high with a 50mV minimum

noise margin. Unlike previous fail-safe devices, the

-50mV to -200mV threshold complies with the ±200mV

EIA/TIA-485 standard.

Hot-Swap Capability (Except

MAX13081E/MAX13084E/MAX13087E)

Hot-Swap Inputs

When circuit boards are inserted into a hot or powered

backplane, differential disturbances to the data bus

can lead to data errors. Upon initial circuit board inser-

tion, the data communication processor undergoes its

own power-up sequence. During this period, the

processor’s logic-output drivers are high impedance

and are unable to drive the DE and RE inputs of these

devices to a defined logic level. Leakage currents up to

±10µA from the high-impedance state of the proces-

sor’s logic drivers could cause standard CMOS enable

inputs of a transceiver to drift to an incorrect logic level.

Additionally, parasitic circuit board capacitance could

cause coupling of VCC or GND to the enable inputs.

Without the hot-swap capability, these factors could

improperly enable the transceiver’s driver or receiver.

When VCC rises, an internal pulldown circuit holds DE

low and RE high. After the initial power-up sequence,

the pulldown circuit becomes transparent, resetting the

hot-swap tolerable input.

Hot-Swap Input Circuitry

The enable inputs feature hot-swap capability. At the

input there are two NMOS devices, M1 and M2

(Figure 9). When VCC ramps from zero, an internal 7µs

timer turns on M2 and sets the SR latch, which also

turns on M1. Transistors M2, a 1.5mA current sink, and

M1, a 500µA current sink, pull DE to GND through a

5kΩresistor. M2 is designed to pull DE to the disabled

state against an external parasitic capacitance up to

100pF that can drive DE high. After 7µs, the timer

deactivates M2 while M1 remains on, holding DE low

against three-state leakages that can drive DE high. M1

remains on until an external source overcomes the

required input current. At this time, the SR latch resets

and M1 turns off. When M1 turns off, DE reverts to a

standard, high-impedance CMOS input. Whenever VCC

drops below 1V, the hot-swap input is reset.

For RE there is a complementary circuit employing two

PMOS devices pulling RE to VCC.

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

______________________________________________________________________________________ 15

MAX13080E–MAX13089E

MAX13089E Programming

The MAX13089E has several programmable operating

modes. Transmitter rise and fall times are programma-

ble, resulting in maximum data rates of 250kbps,

500kbps, and 16Mbps. To select the desired data rate,

drive SRL to one of three possible states by using a

three-state driver: VCC, GND, or unconnected. For

250kbps operation, set the three-state device in high-

impedance mode or leave SRL unconnected. For

500kbps operation, drive SRL high or connect it to VCC.

For 16Mbps operation, drive SRL low or connect it to

GND. SRL can be changed during operation without

interrupting data communications.

Occasionally, twisted-pair lines are connected backward

from normal orientation. The MAX13089E has two pins

that invert the phase of the driver and the receiver to cor-

rect this problem. For normal operation, drive TXP and

RXP low, connect them to ground, or leave them uncon-

nected (internal pulldown). To invert the driver phase,

drive TXP high or connect it to VCC. To invert the receiver

phase, drive RXP high or connect it to VCC. Note that the

receiver threshold is positive when RXP is high.

The MAX13089E can operate in full- or half-duplex

mode. Drive H/Flow, leave it unconnected (internal

pulldown), or connect it to GND for full-duplex opera-

tion. Drive H/Fhigh for half-duplex operation. In full-

duplex mode, the pin configuration of the driver and

receiver is the same as that of a MAX13080E. In half-

duplex mode, the receiver inputs are internally connect-

ed to the driver outputs through a resistor-divider. This

effectively changes the function of the device’s outputs.

Y becomes the noninverting driver output and receiver

input, Z becomes the inverting driver output and receiver

input. In half-duplex mode, A and B are still connected to

ground through an internal resistor-divider but they are

not internally connected to the receiver.

±15kV ESD Protection

As with all Maxim devices, ESD-protection structures

are incorporated on all pins to protect against electro-

static discharges encountered during handling and

assembly. The driver outputs and receiver inputs of the

MAX13080E family of devices have extra protection

against static electricity. Maxim’s engineers have devel-

oped state-of-the-art structures to protect these pins

against ESD of ±15kV without damage. The ESD struc-

tures withstand high ESD in all states: normal operation,

shutdown, and powered down. After an ESD event, the

MAX13080E–MAX13089E keep working without latchup

or damage.

ESD protection can be tested in various ways. The

transmitter outputs and receiver inputs of the

MAX13080E–MAX13089E are characterized for protec-

tion to the following limits:

•±15kV using the Human Body Model

•±6kV using the Contact Discharge method specified

in IEC 61000-4-2

ESD Test Conditions

ESD performance depends on a variety of conditions.

Contact Maxim for a reliability report that documents

test setup, test methodology, and test results.

Human Body Model

Figure 10a shows the Human Body Model, and Figure

10b shows the current waveform it generates when dis-

charged into a low impedance. This model consists of a

100pF capacitor charged to the ESD voltage of interest,

which is then discharged into the test device through a

1.5kΩresistor.

IEC 61000-4-2

The IEC 61000-4-2 standard covers ESD testing and

performance of finished equipment. However, it does

not specifically refer to integrated circuits. The

MAX13080E family of devices helps you design equip-

ment to meet IEC 61000-4-2, without the need for addi-

tional ESD-protection components.

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

16 ______________________________________________________________________________________

DE DE

(HOT SWAP)

5kΩ

TIMER

VCC

10µs

M2M1

500µA

100µA

SR LATCH

Figure 9. Simplified Structure of the Driver Enable Pin (DE)

The major difference between tests done using the

Human Body Model and IEC 61000-4-2 is higher peak

current in IEC 61000-4-2 because series resistance is

lower in the IEC 61000-4-2 model. Hence, the ESD with-

stand voltage measured to IEC 61000-4-2 is generally

lower than that measured using the Human Body Model.

Figure 10c shows the IEC 61000-4-2 model, and Figure

10d shows the current waveform for IEC 61000-4-2 ESD

Contact Discharge test.

Machine Model

The machine model for ESD tests all pins using a

200pF storage capacitor and zero discharge resis-

tance. The objective is to emulate the stress caused

when I/O pins are contacted by handling equipment

during test and assembly. Of course, all pins require

this protection, not just RS-485 inputs and outputs.

Applications Information

256 Transceivers on the Bus

The standard RS-485 receiver input impedance is 12kΩ

(1-unit load), and the standard driver can drive up to 32-

unit loads. The MAX13080E family of transceivers has a

1/8-unit load receiver input impedance (96kΩ), allowing

up to 256 transceivers to be connected in parallel on one

communication line. Any combination of these devices,

as well as other RS-485 transceivers with a total of 32-

unit loads or fewer, can be connected to the line.

Reduced EMI and Reflections

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

offer higher driver output slew-rate limits, allowing

transmit speeds up to 500kbps. The MAX13089E with

SRL = VCC or unconnected are slew-rate limited. With

SRL unconnected, the MAX13089E error-free data

transmission is up to 250kbps. With SRL connected to

VCC, the data transmit speeds up to 500kbps.

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

______________________________________________________________________________________ 17

CHARGE-CURRENT-

LIMIT RESISTOR

DISCHARGE

RESISTANCE

STORAGE

CAPACITOR

100pF

1MΩ

1500Ω

HIGH-

VOLTAGE

SOURCE

DEVICE

UNDER

TEST

Figure 10a. Human Body ESD Test Model

IP 100%

90%

36.8%

tRL TIME

tDL

CURRENT WAVEFORM

PEAK-TO-PEAK RINGING

(NOT DRAWN TO SCALE)

10%

AMPS

Figure 10b. Human Body Current Waveform

CHARGE-CURRENT-

LIMIT RESISTOR

DISCHARGE

RESISTANCE

STORAGE

CAPACITOR

150pF

50MΩ TO 100MΩ

330Ω

HIGH-

VOLTAGE

SOURCE

DEVICE

UNDER

TEST

Figure 10c. IEC 61000-4-2 ESD Test Model

tr = 0.7ns TO 1ns 30ns

60ns

100%

90%

10%

PEAK

Figure 10d. IEC 61000-4-2 ESD Generator Current Waveform

MAX13080E–MAX13089E

Low-Power Shutdown Mode (Except

MAX13081E/MAX13084E/MAX13087E)

Low-power shutdown mode is initiated by bringing both

RE high and DE low. In shutdown, the devices typically

draw only 2.8µA of supply current.

RE and DE can be driven simultaneously; the devices

are guaranteed not to enter shutdown if RE is high and

DE is low for less than 50ns. If the inputs are in this

state for at least 700ns, the devices are guaranteed to

enter shutdown.

Enable times tZH and tZL (see the Switching

Characteristics section) assume the devices were not in

a low-power shutdown state. Enable times tZH(SHDN) and

tZL(SHDN) assume the devices were in shutdown state. It

takes drivers and receivers longer to become enabled

from low-power shutdown mode (tZH(SHDN), tZL(SHDN))

than from driver/receiver-disable mode (tZH, tZL).

Driver Output Protection

Two mechanisms prevent excessive output current and

power dissipation caused by faults or by bus contention.

The first, a foldback current limit on the output stage,

provides immediate protection against short circuits over

the whole common-mode voltage range (see the Typical

Operating Characteristics). The second, a thermal-shut-

down circuit, forces the driver outputs into a high-imped-

ance state if the die temperature exceeds +175°C (typ).

Line Length

The RS-485/RS-422 standard covers line lengths up to

4000ft. For line lengths greater than 4000ft, use the

repeater application shown in Figure 11.

Typical Applications

The MAX13082E/MAX13085E/MAX13088E/MAX13089E

transceivers are designed for bidirectional data commu-

nications on multipoint bus transmission lines. Figures

12 and 13 show typical network applications circuits.

To minimize reflections, terminate the line at both ends

in its characteristic impedance, and keep stub lengths

off the main line as short as possible. The slew-rate-lim-

ited MAX13082E/MAX13085E and the two modes of the

MAX13089E are more tolerant of imperfect termination.

Chip Information

TRANSISTOR COUNT: 1228

PROCESS: BiCMOS

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

18 ______________________________________________________________________________________

MAX13080E/MAX13081E/MAX13083E/

MAX13084E/MAX13086E/MAX13087E/

MAX13089E (FULL DUPLEX)

RE 120Ω

120Ω

DATA IN

DATA OUT

Figure 11. Line Repeater for MAX13080E/MAX13081E/

MAX13083E/MAX13084E/MAX13086E/MAX13087E/MAX13089E

in Full-Duplex Mode

DI RO DE

AAA

120Ω120Ω

MAX13082E

MAX13085E

MAX13088E

MAX13089E (HALF DUPLEX) RERE

Figure 12. Typical Half-Duplex RS-485 Network

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

______________________________________________________________________________________ 19

R120Ω

120Ω

MAX13080E

MAX13081E

MAX13083E

MAX13084E

MAX13086E

MAX13087E

MAX31089E (FULL DUPLEX)

120Ω

DI DE

YZBA

DI DE

YZBA

NOTE: RE AND DE ON MAX13080E/MAX13083E/MAX13086E/MAX13089E ONLY.

Figure 13. Typical Full-Duplex RS-485 Network

Selector Guide

PART HALF/FULL

DUPLEX

DATA RATE

(Mbps)

SLEW-RATE

LIMITED

LOW-POWER

SHUTDOWN

RECEIVER/

DRIVER

ENABLE

TRANSCEIVERS

ON BUS PINS

MAX13080E Full 0.250 Yes Yes Yes 256 14

MAX13081E Full 0.250 Yes No No 256 8

MAX13082E Half 0.250 Yes Yes Yes 256 8

MAX13083E Full 0.5 Yes Yes Yes 256 14

MAX13084E Full 0.5 Yes No No 256 8

MAX13085E Half 0.5 Yes Yes Yes 256 8

MAX13086E Full 16 No Yes Yes 256 14

MAX13087E Full 16 No No No 256 8

MAX13088E Half 16 No Yes Yes 256 8

MAX13089E Selectable Selectable Selectable Yes Yes 256 14

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

20 ______________________________________________________________________________________

MAX13080E

MAX13083E

MAX13086E

DE VCC

GND

VCC RE

GND DE

0.1µF

N.C.

1, 8, 13

36, 7

VCC

N.C.

GND

TYPICAL FULL-DUPLEX OPERATING CIRCUIT

DIP/SO

Pin Configurations and Typical Operating Circuits

MAX13081E

MAX13084E

MAX13087E

VCC

GND

VCC

GND

0.1µF

TYPICAL FULL-DUPLEX OPERATING CIRCUIT

VCC

GND

DIP/SO

MAX13082E

MAX13085E

MAX13088E

0.1µF

TYPICAL HALF-DUPLEX OPERATING CIRCUIT

NOTE: PIN LABELS Y AND Z ON TIMING, TEST, AND WAVEFORMS DIAGRAMS.

SEE PINS A AND B WHEN DE IS HIGH.

VCC

GND

DIP/SO

VCC

GND

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

______________________________________________________________________________________ 21

MAX13089E

DIP/SO

TOP VIEW

VCC

RXP

TXP

SRL

GND

H/F

TXP

GND DE SRL

H/F

RXP

NOTE: SWITCH POSITIONS

INDICATED FOR H/F = GND.

Pin Configurations and Typical Operating Circuits (continued)

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

22 ______________________________________________________________________________________

Ordering Information (continued)

PART TEMP RANGE PIN-

PACKAGE

PKG

CODE

MAX13081ECPA 0°C to +70°C8 PDIP P8-2

MAX13081ECSA 0°C to +70°C8 SO S8-4

MAX13081EEPA -40°C to +85°C8 PDIP P8-2

MAX13081EESA -40°C to +85°C8 SO S8-4

MAX13081EAPA -40°C to +125°C8 PDIP P8-2

MAX13081EASA -40°C to +125°C8 SO S8-4

MAX13082ECPA 0°C to +70°C8 PDIP P8-2

MAX13082ECSA 0°C to +70°C8 SO S8-4

MAX13082EEPA -40°C to +85°C8 PDIP P8-2

MAX13082EESA -40°C to +85°C8 SO S8-4

MAX13082EAPA -40°C to +125°C8 PDIP P8-2

MAX13082EASA -40°C to +125°C8 SO S8-4

MAX13083ECPD 0°C to +70°C14 PDIP P14-3

MAX13083ECSD 0°C to +70°C14 SO S14-2

MAX13083EEPD -40°C to +85°C14 PDIP P14-3

MAX13083EESD -40°C to +85°C14 SO S14-2

MAX13083EAPD -40°C to +125°C14 PDIP P14-3

MAX13083EASD -40°C to +125°C14 SO S14-2

MAX13084ECPA 0°C to +70°C8 PDIP P8-2

MAX13084ECSA 0°C to +70°C8 SO S8-4

MAX13084EEPA -40°C to +85°C8 PDIP P8-2

MAX13084EESA -40°C to +85°C8 SO S8-4

MAX13084EAPA -40°C to +125°C8 PDIP P8-2

MAX13084EASA -40°C to +125°C8 SO S8-4

MAX13085ECPA 0°C to +70°C8 PDIP P8-2

MAX13085ECSA 0°C to +70°C8 SO S8-4

MAX13085EEPA -40°C to +85°C8 PDIP P8-2

MAX13085EESA -40°C to +85°C8 SO S8-4

MAX13085EAPA -40°C to +125°C8 PDIP P8-2

MAX13085EASA -40°C to +125°C8 SO S8-4

PART TEMP RANGE PIN-

PACKAGE

PKG

CODE

MAX13086ECPD 0°C to +70°C14 PDIP P14-3

MAX13086ECSD 0°C to +70°C14 SO S14-2

MAX13086EEPD -40°C to +85°C14 PDIP P14-3

MAX13086EESD -40°C to +85°C14 SO S14-2

MAX13086EAPD -40°C to +125°C14 PDIP P14-3

MAX13086EASD -40°C to +125°C14 SO S14-2

MAX13087ECPA 0°C to +70°C8 PDIP P8-2

MAX13087ECSA 0°C to +70°C8 SO S8-4

MAX13087EEPA -40°C to +85°C8 PDIP P8-2

MAX13087EESA -40°C to +85°C8 SO S8-4

MAX13087EAPA -40°C to +125°C8 PDIP P8-2

MAX13087EASA -40°C to +125°C8 SO S8-4

MAX13088ECPA 0°C to +70°C8 PDIP P8-2

MAX13088ECSA 0°C to +70°C8 SO S8-4

MAX13088EEPA -40°C to +85°C8 PDIP P8-2

MAX13088EESA -40°C to +85°C8 SO S8-4

MAX13088EAPA -40°C to +125°C8 PDIP P8-2

MAX13088EASA -40°C to +125°C8 SO S8-4

MAX13089ECPD 0°C to +70°C14 PDIP P14-3

MAX13089ECSD 0°C to +70°C14 SO S14-2

MAX13089EEPD -40°C to +85°C14 PDIP P14-3

MAX13089EESD -40°C to +85°C14 SO S14-2

MAX13089EAPD -40°C to +125°C14 PDIP P14-3

MAX13089EASD -40°C to +125°C14 SO S14-2

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

______________________________________________________________________________________ 23

PDIPN.EPS

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,

go to www.maxim-ic.com/packages.)

MAX13080E–MAX13089E

+5.0V, ±15kV ESD-Protected, Fail-Safe,

Hot-Swap, RS-485/RS-422 Transceivers

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are

implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 24

Package Information (continued)

(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,

go to www.maxim-ic.com/packages.)

SOICN .EPS

PACKAGE OUTLINE, .150" SOIC

21-0041 B

REV.DOCUMENT CONTROL NO.APPROVAL

PROPRIETARY INFORMATION

TITLE:

TOP VIEW

FRONT VIEW

MAX

0.010

0.069

0.019

0.157

0.010

INCHES

0.150

0.007

DIM

0.014

0.004

MIN

0.053A

0.19

3.80 4.00

0.25

MILLIMETERS

0.10

0.35

1.35

MIN

0.49

0.25

MAX

1.75

0.050

0.016L0.40 1.27

0.3940.386D

MINDIM

INCHES

MAX

9.80 10.00

MILLIMETERS

MIN MAX

16 AC

0.337 0.344 AB8.758.55 14

0.189 0.197 AA5.004.80 8

N MS012

SIDE VIEW

H 0.2440.228 5.80 6.20

e 0.050 BSC 1.27 BSC

eBA1

0∞-8∞

VARIATIONS: