MAX13080E–MAX13084E/ MAX13086E–MAX13089E AVAILABLE +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers General Description Features The MAX13080E–MAX13089E +5.0V, ±15kV ESD-protect- (cid:2) +5.0V Operation ed, RS-485/RS-422 transceivers feature one driver and one receiver. These devices include fail-safe circuitry, (cid:2) Extended ESD Protection for RS-485/RS-422 I/O Pins guaranteeing a logic-high receiver output when receiver ±15kV Human Body Model inputs are open or shorted. The receiver outputs a logic- (cid:2) True Fail-Safe Receiver While Maintaining high if all transmitters on a terminated bus are disabled EIA/TIA-485 Compatibility (high impedance). The MAX13080E family include a hot- swap capability to eliminate false transitions on the bus (cid:2) Hot-Swap Input Structures on DE and RE during power-up or hot insertion. (cid:2) Enhanced Slew-Rate Limiting Facilitates Error- The MAX13080E/MAX13081E/MAX13082E feature Free Data Transmission reduced slew-rate drivers that minimize EMI and (MAX13080E–MAX13084E/MAX13089E) reduce reflections caused by improperly terminated (cid:2) Low-Current Shutdown Mode (Except cables, allowing error-free data transmission up to MAX13081E/MAX13084E/MAX13087E) 250kbps. The MAX13083E/MAX13084E also feature slew-rate-limited drivers but allow transmit speeds up to (cid:2) Pin-Selectable Full-/Half-Duplex Operation 500kbps. The MAX13086E/MAX13087E/ MAX13088E (MAX13089E) driver slew rates are not limited, making transmit (cid:2) Phase Controls to Correct for Twisted-Pair speeds up to 16Mbps possible. The MAX13089E slew rate is pin selectable for 250kbps, 500kbps, and Reversal (MAX13089E) 16Mbps. (cid:2) Allow Up to 256 Transceivers on the Bus The MAX13082E/MAX13088E are intended for half- (cid:2) Available in Industry-Standard 8-Pin SO Package 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 OOrrddeerriinngg IInnffoorrmmaattiioonn full-duplex operation. It also features independently programmable receiver and transmitter output phase through separate pins. PART TEMP RANGE PIN-PACKAGE The MAX13080E family transceivers draw 1.2mA of MAX13080ECPD+ 0°C to +70°C 14 PDIP Functional Diagrams supply current when unloaded or when fully loaded with MAX13080ECSD+ 0°C to +70°C 14 SO the drivers disabled. All devices have a 1/8-unit load MAX13080EEPD+ -40°C to +85°C 14 PDIP receiver input impedance, allowing up to 256 trans- MAX13080EESD+ -40°C to +85°C 14 SO ceivers on the bus. MAX13080EAPD+ -40°C to +125°C 14 PDIP The MAX13080E/MAX13083E/MAX13086E/MAX13089E MAX13080EASD+ -40°C to +125°C 14 SO are available in 14-pin PDIP and 14-pin SO packages.The MAX13081E/MAX13082E/MAX13084E/MAX13087E/ +Denotes a lead(Pb)-free/RoHS-compliant package. MAX13088E are available in 8-pin PDIP and 8-pin SO packages. The devices operate over the commercial, extended, and automotive temperature ranges. Applications Ordering Information continued at end of data sheet. Utility Meters Lighting Systems Selector Guide, Pin Configurations, and Typical Operating Industrial Control Circuits appear at end of data sheet. Telecom Security Systems Pin Configurations appear at end of data sheet. Instrumentation Functional Diagrams continued at end of data sheet. UCSP is Pa rtorafidbeumsark 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. 19-3590; Rev 2; 11/11

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers ABSOLUTE MAXIMUM RATINGS (All Voltages Referenced to GND) Continuous Power Dissipation (TA= +70°C) Supply Voltage (VCC).............................................................+6V 8-Pin SO (derate 5.88mW/°C above +70°C).................471mW Control Input Voltage (RE, DE, SLR, 8-Pin Plastic DIP (derate 9.09mW/°C above +70°C).....727mW H/F, TXP, RXP)......................................................-0.3V to +6V 14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW Driver Input Voltage (DI)...........................................-0.3V to +6V 14-Pin Plastic DIP (derate 10.0mW/°C above +70°C)...800mW Driver Output Voltage (Z, Y, A, B).............................-8V to +13V Operating Temperature Ranges Receiver Input Voltage (A, B)....................................-8V to +13V MAX1308_EC_ _.................................................0°C to +75°C Receiver Input Voltage MAX1308_EE_ _..............................................-40°C to +85°C Full Duplex (A, B)..................................................-8V to +13V MAX1308_EA_ _............................................-40°C to +125°C Receiver Output Voltage (RO)....................-0.3V to (VCC+ 0.3V) Junction Temperature......................................................+150°C Driver Output Current.....................................................±250mA Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°C Soldering Temperature (reflow).......................................+260°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 (VCC= +5.0V ±10%, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= +5.0V and TA= +25°C.) (Note 1) 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 Differential Driver Output VOD RL = 54Ω (RS-485), Figure 1 2 VCC V No load VCC Change in Magnitude of ΔVOD RL = 100Ω or 54Ω, Figure 1 (Note 2) 0.2 V Differential Output Voltage Driver Common-Mode Output VOC RL = 100Ω or 54Ω, Figure 1 VCC / 2 3 V Voltage Change in Magnitude of ΔVOC RL = 100Ω or 54Ω, Figure 1 (Note 2) 0.2 V Common-Mode Voltage Input-High Voltage VIH DE, DI, RE, TXP, RXP, H/F 3 V Input-Low Voltage VIL DE, DI, RE, TXP, RXP, H/F 0.8 V Input Hysteresis VHYS DE, DI, RE, TXP, RXP, H/F 100 mV Input Current IIN1 DE, DI, RE ±1 µA 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 µA SRL = GND -75 Output Leakage (Y and Z) DE = GND, VIN = +12V 125 IO µA Full Duplex VCC = GND or VCC VIN = -7V -100 2 Maxim Integrated

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers DC ELECTRICAL CHARACTERISTICS (continued) (VCC= +5.0V ±10%, TA= TMINto 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 Driver Short-Circuit Output 0 ≤ VOUT ≤ +12V, +85°C ≤ TA ≤ +125°C IOSD 40 270 mA Current (Note 3) -7V ≤ VOUT ≤ VCC, +85°C ≤ TA ≤ +125°C -270 -40 (Note 3) Driver Short-Circuit Foldback (VCC - 1V) ≤ VOUT ≤ +12V (Note 3) 20 IOSDF mA Output Current -7V ≤ VOUT ≤ +1V (Note 3) -20 Thermal-Shutdown Threshold TTS 175 °C Thermal-Shutdown Hysteresis TTSH 15 °C DE = GND, VIN = +12V 125 Input Current (A and B) IA, B µA VCC = GND or VCC VIN = -7V -100 RECEIVER Receiver Differential Threshold VTH -7V ≤ VCM ≤ +12V -200 -125 -50 mV Voltage Receiver Input Hysteresis ΔVTH VA + VB = 0V 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 IOZR 0 ≤ VO ≤ VCC ± 1 µA Receiver Receiver Input Resistance RIN -7V ≤ VCM ≤ +12V 96 kΩ Receiver Output Short-Circuit IOSR 0V ≤ VRO ≤ VCC ±110 mA Current SUPPLY CURRENT No load, RE = 0, DE = VCC 1.2 1.8 Supply Current ICC No load, RE = VCC, DE = VCC 1.2 1.8 mA No load, RE = 0, DE = 0 1.2 1.8 Supply Current in Shutdown ISHDN RE = VCC, DE = GND 2.8 10 µA Mode ESD PROTECTION Human Body Model ±15 kV ESD Protection for Y, Z, A, and B Contact Discharge ±6 kV IEC 61000-4-2 Maxim Integrated 3

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers DRIVER SWITCHING CHARACTERISTICS MAX13080E/MAX13081E/MAX13082E/MAX13089E WITH SRL = UNCONNECTED (250kbps) (VCC= +5.0V ±10%, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= +5.0V and TA= +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Driver Propagation Delay tDPLH CL= 50pF, RL= 54Ω, Figures 2 and 3 350 1800 ns tDPHL 350 1800 Driver Differential Output Rise or tR , tF CL= 50pF, RL= 54Ω, Figures 2 and 3 400 1900 ns Fall Time Differential Driver Output Skew tDSKEW CL= 50pF, RL= 54Ω, Figures 2 and 3 250 ns |tDPLH - tDPHL| 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 tDZH(SHDN) Figure 4 5500 ns Output High Driver Enable from Shutdown to tDZL(SHDN) Figure 5 5500 ns Output Low Time to Shutdown tSHDN 50 340 700 ns RECEIVER SWITCHING CHARACTERISTICS MAX13080E/MAX13081E/MAX13082E/MAX13089E WITH SRL = UNCONNECTED (250kbps) (VCC= +5.0V ±10%, TA= TMINto 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 CL = 15pF, Figures 6 and 7 ns tRPHL 200 Receiver Output Skew tRSKEW CL = 15pF, Figures 6 and 7 30 ns |tRPLH - tRPHL| 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 tRZH(SHDN) Figure 8 5500 ns to Output High Receiver Enable from Shutdown tRZL(SHDN) Figure 8 5500 ns to Output Low Time to Shutdown tSHDN 50 340 700 ns 4 Maxim Integrated

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers DRIVER SWITCHING CHARACTERISTICS MAX13083E/MAX13084E/MAX13089E WITH SRL = VCC (500kbps) (VCC= +5.0V ±10%, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= +5.0V and TA= +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Driver Propagation Delay tDPLH CL = 50pF, RL = 54Ω, Figures 2 and 3 200 1000 ns tDPHL 200 1000 Driver Differential Output Rise or tR , tF CL = 50pF, RL = 54Ω, Figures 2 and 3 250 900 ns Fall Time Differential Driver Output Skew tDSKEW CL = 50pF, RL = 54Ω, Figures 2 and 3 140 ns |tDPLH - tDPHL| 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 tDZH(SHDN) Figure 4 5500 ns Output High Driver Enable from Shutdown to tDZL(SHDN) Figure 5 5500 ns Output Low Time to Shutdown tSHDN 50 340 700 ns RECEIVER SWITCHING CHARACTERISTICS MAX13083E/MAX13084E/MAX13089E WITH SRL = VCC (500kbps) (VCC= +5.0V ±10%, TA= TMINto 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 CL = 15pF, Figures 6 and 7 ns tRPHL 200 Receiver Output Skew tRSKEW CL = 15pF, Figures 6 and 7 30 ns |tRPLH - tRPHL| 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 tRZH(SHDN) Figure 8 5500 ns to Output High Receiver Enable from Shutdown tRZL(SHDN) Figure 8 5500 ns to Output Low Time to Shutdown tSHDN 50 340 700 ns Maxim Integrated 5

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers DRIVER SWITCHING CHARACTERISTICS MAX13086E/MAX13087E/MAX13088E/MAX13089E WITH SRL = GND (16Mbps) (VCC= +5.0V ±10%, TA= TMINto TMAX, unless otherwise noted. Typical values are at VCC= +5.0V and TA= +25°C.) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS Driver Propagation Delay tDPLH CL = 50pF, RL= 54Ω, Figures 2 and 3 50 ns tDPHL 50 Driver Differential Output Rise or tR , tF CL = 50pF, RL= 54Ω, Figures 2 and 3 15 ns Fall Time Differential Driver Output Skew tDSKEW CL = 50pF, RL= 54Ω, Figures 2 and 3 8 ns |tDPLH - tDPHL| 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 tDZH(SHDN) Figure 4 2200 ns Output High Driver Enable from Shutdown to tDZL(SHDN) Figure 5 2200 ns Output Low Time to Shutdown tSHDN 50 340 700 ns RECEIVER SWITCHING CHARACTERISTICS MAX13086E/MAX13087E/MAX13088E/MAX13089E WITH SRL = GND (16Mbps) (VCC= +5.0V ±10%, TA= TMINto 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 CL = 15pF, Figures 6 and 7 ns tRPHL 50 80 Receiver Output Skew tRSKEW CL = 15pF, Figures 6 and 7 13 ns |tRPLH - tRPHL| 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 tRZH(SHDN) Figure 8 2200 ns to Output High Receiver Enable from Shutdown tRZL(SHDN) Figure 8 2200 ns to Output Low 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: ΔVODand ΔVOCare the changes in VODand 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. 6 Maxim Integrated

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Typical Operating Characteristics (VCC= +5.0V, TA = +25°C, unless otherwise noted.) OUTPUT CURRENT OUTPUT CURRENT SUPPLY CURRENT vs. TEMPERATURE vs. RECEIVER OUTPUT-HIGH VOLTAGE vs. RECEIVER OUTPUT-LOW VOLTAGE NT (mA)1111....53460000 NO LOAD MAX13080E-89E toc01 NT (mA) 456000 MAX13080E-89E toc02 NT (mA) 657000 MAX13080E-89E toc03 CURRE1.20 DE = VCC CURRE 30 CURRE 40 PLY 1.10 PUT PUT 30 SUP DE = 0 OUT 20 OUT 20 1.00 0.90 10 10 0.80 0 0 -40 -25-10 5 20 35 50 65 80 95 110125 0 1 2 3 4 5 0 1 2 3 4 5 TEMPERATURE (°C) OUTPUT HIGH VOLTAGE (V) OUTPUT LOW VOLTAGE (V) RECEIVER OUTPUT-HIGH VOLTAGE RECEIVER OUTPUT-LOW VOLTAGE DRIVER DIFFERENTIAL OUTPUT CURRENT vs. TEMPERATURE vs. TEMPERATURE vs. DIFFERENTIAL OUTPUT VOLTAGE GE (V) 555...204 IO = -1mA MAX13080E-89E toc04 GE (V) 000...768 IO = 1mA MAX13080E-89E toc05 RRENT (mA)111246000 MAX13080E-89E toc06 OUTPUT HIGH VOLTA 444...486 OUTPUT LOW VOLTA 0000....3245 RENTIAL OUTPUT CU146800000 E F 4.2 0.1 DIF 20 4.0 0 0 -40 -25-10 5 20 35 50 65 80 95 110 125 -40 -25-10 5 20 35 50 65 80 95 110 125 0 1 2 3 4 5 TEMPERATURE (°C) TEMPERATURE (°C) DIFFERENTIAL OUTPUT VOLTAGE (V) DRIVER DIFFERENTIAL OUTPUT OUTPUT CURRENT vs. TRANSMITTER OUTPUT CURRENT vs. TRANSMITTER VOLTAGE vs. TEMPERATURE OUTPUT-HIGH VOLTAGE OUTPUT-LOW VOLTAGE RENTIAL OUTPUT VOLTAGE (V) 233444......862408 RL = 54Ω MAX13080E-89E toc07 OUTPUT CURRENT (mA) 1111120862486000000000 MAX13080E-89E toc08 OUTPUT CURRENT (mA) 1111126802468000000000 MAX13080E-89E toc09 E FF 40 40 DI 2.4 20 20 2.0 0 0 -40 -25-10 5 20 35 50 65 80 95 110 125 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 0 2 4 6 8 10 12 TEMPERATURE (°C) OUTPUT HIGH VOLTAGE (V) OUTPUT-LOW VOLTAGE (V) Maxim Integrated 7

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Typical Operating Characteristics (continued) (VCC= +5.0V, TA = +25°C, unless otherwise noted.) SHUTDOWN CURRENT DRIVER PROPAGATION DELAY DRIVER PROPAGATION DELAY vs. TEMPERATURE vs. TEMPERATURE (250kbps) vs. TEMPERATURE (500kbps) μSHUTDOWN CURRENT (A) 1254367980 MAX13080E-89E toc10 DRIVER PROPAGATION DELAY (ns)111879012000000000000 tDPtHDLPLH MAX13080E-89E toc11 DRIVER PROPAGATION DELAY (ns) 435456050550000000 tDPHtDLPLH MAX13080E-89E toc12 1 0 600 300 -40 -25-10 5 20 35 50 65 80 95 110 125 -40 -25-10 5 20 35 50 65 80 95 110 125 -40 -25-10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) DRIVER PROPAGATION DELAY RECEIVER PROPAGATION DELAY RECEIVER PROPAGATION DELAY vs. TEMPERATURE (16Mbps) vs. TEMPERATURE (250kpbs AND 500kbps) vs. TEMPERATURE (16Mbps) DRIVER PROPAGATION DELAY (ns) 1732456800000000 tDtPDHPLLH MAX13080E-89E toc13 RECEIVER PROPAGATION DELAY (ns) 11111428602468000000000 tDtPDLPHHL MAX13080E-89E toc14 RECEIVER PROPAGATION DELAY (ns) 11111428602468000000000 tDtDPLPHHL MAX13080E-89E toc15 0 0 0 -40 -25-10 5 20 35 50 65 80 95 110 125 -40 -25-10 5 20 35 50 65 80 95 110 125 -40 -25-10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) RECEIVER PROPAGATION DELAY DRIVER PROPAGATION DELAY (250kbps) (250kbps AND 500kbps) MAX13080E-89E toc16 MAX13080E-89E toc17 RL = 100Ω RL = 100Ω DI 2V/div VA - VB 5V/div RO VY - VZ 2V/div 5V/div 2μs/div 200ns/div 8 Maxim Integrated

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Typical Operating Characteristics (continued) (VCC= +5.0V, TA = +25°C, unless otherwise noted.) DRIVER PROPAGATION DELAY (500kbps) DRIVER PROPAGATION DELAY (16Mbps) RECEIVER PROPAGATION DELAY (16Mbps) MAX13080E-89E toc18 MAX13080E-89E toc19 MAX13080E-89E toc20 RL = 100Ω RL = 100Ω RL = 100Ω VB DI DI 2V/div 2V/div 2V/div VA 2V/div VZ 2V/div VY - VZ 5V/div RO VY 2V/div 2V/div 400ns/div 10ns/div 40ns/div Test Circuits and Waveforms Y VCC DI VCC/2 RL/2 0 tDPLH tDPHL 1/2 VO VOD Z RL/2 VOC Y VO Z 1/2 VO VDIFF = V (Y) - V (Z) VO Figure 1. Driver DC Test Load VDIFF 0 10% 90% 90% 10% -VO tR tF VCC tSKEW = | tDPLH - tDPHL | DE Figure 3. Driver Propagation Delays Y DI VOD RL CL Z Figure 2. Driver Timing Test Circuit Maxim Integrated 9

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Test Circuits and Waveforms (continued) S1 0 OR VCC D OUT CL RL = 500Ω 50pF GENERATOR 50Ω VCC DE VCC / 2 tDZH, tDZH(SHDN) 0 0.25V VOH OUT VOM = (0 + VOH) / 2 0 tDHZ Figure 4. Driver Enable and Disable Times (tDHZ, tDZH, tDZH(SHDN)) VCC RL = 500Ω S1 0 OR VCC D OUT CL 50pF GENERATOR 50Ω VCC DE VCC / 2 tDZL, tDZL(SHDN) 0 tDLZ VCC OUT VOM = (VOL + VCC) / 2 VOL 0.25V Figure 5. Driver Enable and Disable Times (tDZL, tDLZ, tDLZ(SHDN)) 10 Maxim Integrated

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Test Circuits and Waveforms (continued) A +1V B RECEIVER B -1V OUTPUT ATE VID R tRPLH A VVOOHL VCC/2 tRPHL RO THE RISE TIME AND FALL TIME OF INPUTS A AND B < 4ns Figure 6. Receiver Propagation Delay Test Circuit Figure 7. Receiver Propagation Delays S1 +1.5V S3 1kΩ VCC -1.5V VID R CL 15pF S2 GENERATOR 50Ω S1 OPEN S1 CLOSED S2 CLOSED S2 OPEN S3 = +1.5V S3 = -1.5V VCC VCC VCC/2 RE RE 0 0 tRZH, tRZH(SHDN) tRZL, tRZL(SHDN) RO VOH VCC VOH / 2 (VOL + VCC) / 2 RO 0 VOL S1 OPEN S1 CLOSED S2 CLOSED S2 OPEN S3 = +1.5V S3 = -1.5V VCC VCC RE VCC/2 VCC/2 0 RE 0 tRHZ tRLZ VCC VOH 0.25V RO 0 RO 0.25V VOL Figure 8. Receiver Enable and Disable Times Maxim Integrated 11

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Pin Description PIN MAX13080E MAX13081E MAX13082E MAX13083E MAX13084E MAX13089E MAX13088E MAX13086E MAX13087E NAME FUNCTION HALF- FULL- HALF- FULL-DUPLEX DUPLEX DUPLEX DUPLEX DEVICES DEVICES MODE MODE No Connect. Not internally connected, can be connected 1, 8, 13 — — — — N.C. to GND. Half-/Full-Duplex Select Input. Connect H/F to VCC for — — — 1 1 H/F half-duplex mode; connect H/F to GND or leave unconnected for full-duplex mode. Receiver Output. When RE is low and if (A - B) ≥ -50mV, 2 2 1 2 2 RO RO is high; if (A - B) ≤ -200mV, RO is low. Receiver Output Enable. Drive RE low to enable RO; RO is high impedance when RE is high. Drive RE high and DE 3 — 2 3 3 RE low to enter low-power shutdown mode. RE is a hot-swap input (see the Hot-Swap Capability section for details). Driver Output Enable. Drive DE high to enable driver outputs. These outputs are high impedance when DE is 4 — 3 4 4 DE 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). Dr i ver Inp ut. W it h D E hig h, a lo w on DI for ces nonin ver ti ng 5 3 4 5 5 DI outpu t lo w and in ver ti ng outp ut hig h . S im il a rl y, a hig h on D I for ces nonin ver ti ng outp ut hig h and in ver ti ng outp ut lo w . Slew-Rate Limit Selector Input. Connect SRL to ground for 16Mbps communication rate; connect SRL to VCC for — — — 6 6 SRL 500kbps communication rate. Leave SRL unconnected for 250kbps communication rate. 6, 7 4 5 7 7 GND Ground Tra nsmi tter Ph ase. C onnect TX P to gr ound or le ave TXP — — — 8 8 TXP unconnected for nor m al tra nsm it ter ph ase/po l ari t y. Co nnect TXP to V C C to i nvert the tr ansmi tter ph ase/p ola ri ty. 9 5 — 9 — Y Noninverting Driver Output Noninverting Driver Output and Noninverting Receiver — — — — 9 Y 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 12 Maxim Integrated

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Pin Description (continued) PIN MAX13080E MAX13081E MAX13082E MAX13083E MAX13084E MAX13089E MAX13088E MAX13086E MAX13087E NAME FUNCTION HALF- FULL- HALF- FULL-DUPLEX DUPLEX DUPLEX DUPLEX DEVICES DEVICES MODE MODE 12 8 — 12 — A Noninverting Receiver Input — — — — 12 A Receiver Input Resistors* Noninverting Receiver Input and Noninverting Driver — — 6 — — A Output Receiver Phase. Connect RXP to GND or leave RXP — — — 13 13 RXP unconnected for normal transmitter phase/polarity. Connect RXP to VCC to invert receiver phase/polarity. Positive Supply VCC = +5.0V ±10%. Bypass VCC to GND 14 1 8 14 14 VCC 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. Function Tables MAX13080E/MAX13083E/MAX13086E MAX13081E/MAX13084E/MAX13086E/ MAX13087E TRANSMITTING INPUTS OUTPUTS TRANSMITTING RE DE DI Z Y INPUT OUTPUTS X 1 1 0 1 DI Z Y X 1 0 1 0 1 0 1 0 0 X High-Z High-Z 0 1 0 1 0 X Shutdown RECEIVING RECEIVING INPUTS OUTPUT INPUTS OUTPUT A, B RO RE DE A, B RO ≥ -50mV 1 0 X ≥ -50mV 1 ≤ -200mV 0 0 X ≤ -200mV 0 Open/shorted 1 Open/ 0 X 1 shorted 1 1 X High-Z 1 0 X Shutdown Maxim Integrated 13

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Function Tables (continued) MAX13082E/MAX13088E TRANSMITTING RECEIVING INPUTS OUTPUTS INPUTS OUTPUTS RE DE DI B/Z A/Y RE DE A-B RO X 1 1 0 1 0 X ≥ -50mV 1 X 1 0 1 0 0 X ≤ -200mV 0 0 0 X High-Z High-Z Open/ 0 X 1 1 0 X Shutdown shorted 1 1 X High-Z 1 0 X Shutdown MAX13089E TRANSMITTING INPUTS OUTPUTS TXP RE DE DI Z Y 0 X 1 1 0 1 0 X 1 0 1 0 1 X 1 1 1 0 1 X 1 0 0 1 X 0 0 X High-Z High-Z X 1 0 X Shutdown RECEIVING INPUTS OUTPUTS H/F RXP 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 1 0 0 0 X > -50mV 1 1 0 0 0 X < -200mV 0 1 1 0 0 X > -50mV 0 1 1 0 0 X < -200mV 1 0 0 0 X Open/shorted X 1 1 0 0 0 X Open/shorted 1 0 1 0 X Open/shorted X 0 1 1 0 0 X Open/shorted 0 X X 1 1 X X High-Z X X 1 0 X X Shutdown X = Don’t care; shutdown mode, driver, and receiver outputs are high impedance. 14 Maxim Integrated

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Detailed Description than or equal to -200mV, RO is logic-low. In the case of a terminated bus with all transmitters disabled, the receiv- The MAX13080E–MAX13089E high-speed transceivers er’s differential input voltage is pulled to 0V by the termi- for RS-485/RS-422 communication contain one driver nation. With the receiver thresholds of the MAX13080E and one receiver. These devices feature fail-safe circuit- family, this results in a logic-high with a 50mV minimum ry, which guarantees a logic-high receiver output when noise margin. Unlike previous fail-safe devices, the the receiver inputs are open or shorted, or when they -50mV to -200mV threshold complies with the ±200mV are connected to a terminated transmission line with all EIA/TIA-485 standard. drivers disabled (see the Fail-Safesection). The MAX13080E/MAX13082E/MAX13083E/MAX13086E/ Hot-Swap Capability (Except MAX13088E/MAX13089E also feature a hot-swap capa- MAX13081E/MAX13084E/MAX13087E) bility allowing line insertion without erroneous data trans- Hot-Swap Inputs fer (see the Hot Swap Capability section). The When circuit boards are inserted into a hot or powered MAX13080E/MAX13081E/MAX13082E feature reduced backplane, differential disturbances to the data bus slew-rate drivers that minimize EMI and reduce reflec- can lead to data errors. Upon initial circuit board inser- tions caused by improperly terminated cables, allowing tion, the data communication processor undergoes its error-free data transmission up to 250kbps. The own power-up sequence. During this period, the MAX13083E/MAX13084E also offer slew-rate limits processor’s logic-output drivers are high impedance allowing transmit speeds up to 500kbps. The and are unable to drive the DE and RE inputs of these MAX13086E/MAX13087E/MAX13088Es’ driver slew devices to a defined logic level. Leakage currents up to rates are not limited, making transmit speeds up to ±10µA from the high-impedance state of the proces- 16Mbps possible. The MAX13089E’s slew rate is selec- sor’s logic drivers could cause standard CMOS enable table between 250kbps, 500kbps, and 16Mbps by dri- inputs of a transceiver to drift to an incorrect logic level. ving a selector pin with a three-state driver. Additionally, parasitic circuit board capacitance could The MAX13082E/MAX13088E are half-duplex transceivers, cause coupling of VCC or GND to the enable inputs. while the MAX13080E/MAX13081E/ MAX13083E/ Without the hot-swap capability, these factors could MAX13084E/MAX13086E/MAX13087E are full-duplex improperly enable the transceiver’s driver or receiver. transceivers. The MAX13089E is selectable between half- and full-duplex communication by driving a selec- When VCC rises, an internal pulldown circuit holds DE low and RE high. After the initial power-up sequence, tor pin (H/F) high or low, respectively. the pulldown circuit becomes transparent, resetting the All devices operate from a single +5.0V supply. Drivers hot-swap tolerable input. are output short-circuit current limited. Thermal-shutdown circuitry protects drivers against excessive power dissi- Hot-Swap Input Circuitry pation. When activated, the thermal-shutdown circuitry The enable inputs feature hot-swap capability. At the places the driver outputs into a high-impedance state. input there are two NMOS devices, M1 and M2 (Figure 9). When VCC ramps from zero, an internal 7µs Receiver Input Filtering timer turns on M2 and sets the SR latch, which also The receivers of the MAX13080E–MAX13084E, and the turns on M1. Transistors M2, a 500µA current sink, and MAX13089E when operating in 250kbps or 500kbps M1, a 100µA current sink, pull DE to GND through a mode, incorporate input filtering in addition to input 5kΩ resistor. M2 is designed to pull DE to the disabled hysteresis. This filtering enhances noise immunity with state against an external parasitic capacitance up to differential signals that have very slow rise and fall 100pF that can drive DE high. After 7µs, the timer times. Receiver propagation delay increases by 25% deactivates M2 while M1 remains on, holding DE low due to this filtering. against three-state leakages that can drive DE high. M1 remains on until an external source overcomes the Fail-Safe required input current. At this time, the SR latch resets The MAX13080E family guarantees a logic-high receiver and M1 turns off. When M1 turns off, DE reverts to a output when the receiver inputs are shorted or open, or when they are connected to a terminated transmission standard, high-impedance CMOS input. Whenever VCC drops below 1V, the hot-swap input is reset. line with all drivers disabled. This is done by setting the receiver input threshold between -50mV and -200mV. If For RE there is a complementary circuit employing two the differential receiver input voltage (A - B) is greater PMOS devices pulling REto VCC. than or equal to -50mV, RO is logic-high. If (A - B) is less Maxim Integrated 15

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers tion. Drive H/F high 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- VCC duplex mode, the receiver inputs are internally connect- ed to the driver outputs through a resistor-divider. This 10μs effectively changes the function of the device’s outputs. TIMER Y becomes the noninverting driver output and receiver SR LATCH input, Z becomes the inverting driver output and receiver TIMER 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 5kΩ DE MAX13080E family of devices have extra protection DE (HOT SWAP) against static electricity. Maxim’s engineers have devel- oped state-of-the-art structures to protect these pins 100μA 500μA against ESD of ±15kV without damage. The ESD struc- M1 M2 tures withstand high ESD in all states: normal operation, shutdown, and powered down. After an ESD event, the MAX13080E family keep working without latchup or damage. Figure 9. Simplified Structure of the Driver Enable Pin (DE) ESD protection can be tested in various ways. The transmitter outputs and receiver inputs of the MAX13089E Programming MAX13080E family are characterized for protection to The MAX13089E has several programmable operating the following limits: modes. Transmitter rise and fall times are programma- • ±15kV using the Human Body Model ble, resulting in maximum data rates of 250kbps, 500kbps, and 16Mbps. To select the desired data rate, • ±6kV using the Contact Discharge method specified drive SRL to one of three possible states by using a in IEC 61000-4-2 three-state driver: VCC, GND, or unconnected. For 250kbps operation, set the three-state device in high- ESD Test Conditions impedance mode or leave SRL unconnected. For ESD performance depends on a variety of conditions. 500kbps operation, drive SRL high or connect it to VCC. Contact Maxim for a reliability report that documents For 16Mbps operation, drive SRL low or connect it to test setup, test methodology, and test results. GND. SRL can be changed during operation without Human Body Model interrupting data communications. Figure 10a shows the Human Body Model, and Figure Occasionally, twisted-pair lines are connected backward 10b shows the current waveform it generates when dis- from normal orientation. The MAX13089E has two pins charged into a low impedance. This model consists of a that invert the phase of the driver and the receiver to cor- 100pF capacitor charged to the ESD voltage of interest, rect this problem. For normal operation, drive TXP and which is then discharged into the test device through a RXP low, connect them to ground, or leave them uncon- 1.5kΩresistor. nected (internal pulldown). To invert the driver phase, drive TXP high or connect it to VCC. To invert the receiver IEC 61000-4-2 phase, drive RXP high or connect it to VCC. Note that the The IEC 61000-4-2 standard covers ESD testing and receiver threshold is positive when RXP is high. performance of finished equipment. However, it does not specifically refer to integrated circuits. The The MAX13089E can operate in full- or half-duplex MAX13080E family of devices helps you design equip- mode. Drive H/F low, leave it unconnected (internal ment to meet IEC 61000-4-2, without the need for addi- pulldown), or connect it to GND for full-duplex opera- tional ESD-protection components. 16 Maxim Integrated

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers RC RD RC RD 1MΩ 1500Ω 50MΩ TO 100MΩ 330Ω CHARGE-CURRENT- DISCHARGE CHARGE-CURRENT- DISCHARGE LIMIT RESISTOR RESISTANCE LIMIT RESISTOR RESISTANCE HIGH- DEVICE HIGH- DEVICE VOLTAGE Cs STORAGE UNDER VOLTAGE Cs STORAGE UNDER DC 100pF CAPACITOR TEST DC 150pF CAPACITOR TEST SOURCE SOURCE Figure 10a. Human Body ESD Test Model Figure 10c. IEC 61000-4-2 ESD Test Model I 100% IP 100% Ir PEAK-TO-PEAK RINGING 90% 90% (NOT DRAWN TO SCALE) AMPS IPEAK 36.8% 10% 10% 0 0 tRL TIMEtDL tr = 0.7ns TO 1ns 30ns t CURRENT WAVEFORM 60ns Figure 10b. Human Body Current Waveform Figure 10d. IEC 61000-4-2 ESD Generator Current Waveform The major difference between tests done using the Applications Information Human Body Model and IEC 61000-4-2 is higher peak current in IEC 61000-4-2 because series resistance is 256 Transceivers on the Bus lower in the IEC 61000-4-2 model. Hence, the ESD with- The standard RS-485 receiver input impedance is 12kΩ stand voltage measured to IEC 61000-4-2 is generally (1-unit load), and the standard driver can drive up to 32- lower than that measured using the Human Body Model. unit loads. The MAX13080E family of transceivers has a Figure 10c shows the IEC 61000-4-2 model, and Figure 1/8-unit load receiver input impedance (96kΩ), allowing 10d shows the current waveform for IEC 61000-4-2 ESD up to 256 transceivers to be connected in parallel on one Contact Discharge test. communication line. Any combination of these devices, as well as other RS-485 transceivers with a total of 32- Machine Model unit loads or fewer, can be connected to the line. The machine model for ESD tests all pins using a 200pF storage capacitor and zero discharge resis- Reduced EMI and Reflections tance. The objective is to emulate the stress caused The MAX13080E/MAX13081E/MAX13082E feature when I/O pins are contacted by handling equipment reduced slew-rate drivers that minimize EMI and during test and assembly. Of course, all pins require reduce reflections caused by improperly terminated this protection, not just RS-485 inputs and outputs. cables, allowing error-free data transmission up to 250kbps. The MAX13083E/MAX13084E offer higher dri- ver output slew-rate limits, allowing transmit speeds up to 500kbps. The MAX13089E with SRL = VCCor uncon- nected 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. Maxim Integrated 17

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Low-Power Shutdown Mode (Except Driver Output Protection MAX13081E/MAX13084E/MAX13087E) Two mechanisms prevent excessive output current and Low-power shutdown mode is initiated by bringing both power dissipation caused by faults or by bus contention. RE high and DE low. In shutdown, the devices typically The first, a foldback current limit on the output stage, draw only 2.8µA of supply current. provides immediate protection against short circuits over the whole common-mode voltage range (see the Typical RE and DE can be driven simultaneously; the devices Operating Characteristics). The second, a thermal-shut- are guaranteed not to enter shutdown if RE is high and down circuit, forces the driver outputs into a high-imped- DE is low for less than 50ns. If the inputs are in this ance state if the die temperature exceeds +175°C (typ). state for at least 700ns, the devices are guaranteed to enter shutdown. Line Length Enable times tZH and tZL (see the Switching The RS-485/RS-422 standard covers line lengths up to Characteristics section) assume the devices were not in 4000ft. For line lengths greater than 4000ft, use the a low-power shutdown state. Enable times tZH(SHDN)and repeater application shown in Figure 11. tZL(SHDN)assume the devices were in shutdown state. It Typical Applications takes drivers and receivers longer to become enabled The MAX13082E/MAX13088E/MAX13089E transceivers from low-power shutdown mode (tZH(SHDN), tZL(SHDN)) are designed for bidirectional data communications on than from driver/receiver-disable mode (tZH, tZL). multipoint bus transmission lines. Figures 12 and 13 show typical network applications circuits. To minimize reflections, terminate the line at both ends MAX13080E/MAX13081E/MAX13083E/ in its characteristic impedance, and keep stub lengths MAX13084E/MAX13086E/MAX13087E/ off the main line as short as possible. The slew-rate-lim- MAX13089E (FULL DUPLEX) ited MAX13082E and the two modes of the MAX13089E A are more tolerant of imperfect termination. RO RE R B 120Ω DATA IN DE Chip Information Z PROCESS: BiCMOS DI D Y 120Ω DATA OUT Figure 11. Line Repeater for MAX13080E/MAX13081E/ MAX13083E/MAX13084E/MAX13086E/MAX13087E/MAX13089E in Full-Duplex Mode 120Ω 120Ω DE B B DI D D DI DE A B A B A A RO R R RO RE RE R R D D MAX13082E MAX13088E MAX13089E (HALF DUPLEX) DI DE RO RE DI DE RO RE Figure 12. Typical Half-Duplex RS-485 Network 18 Maxim Integrated

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers A Y 120Ω 120Ω RO R D DI B RE Z DE DE Z B RE 120Ω 120Ω DI D R RO Y A Y Z B A Y Z B A R R MAX13080E MAX13081E D D MAX13083E MAX13084E MAX13086E MAX13087E DI DE RERO DI DE RERO MAX31089E (FULL DUPLEX) NOTE: RE AND DE ON MAX13080E/MAX13083E/MAX13086E/MAX13089E ONLY. Figure 13. Typical Full-Duplex RS-485 Network Selector Guide RECEIVER/ HALF/FULL DATA RATE SLEW-RATE LOW-POWER TRANSCEIVERS PART DRIVER PINS DUPLEX (Mbps) LIMITED SHUTDOWN ON BUS ENABLE 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 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 Maxim Integrated 19

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Pin Configurations and Typical Operating Circuits DE VCC MAX13080E VCC RE 4 14 0.1μF MAX13083E MAX13086E N.C. 1 14 VCC 9 Y A 5 Rt RO 2 R 13 N.C. DI D R RO 10 RE 3 12 A Z B 12 A Y DE 4 11 B 2 Rt RO R D DI 11 DI 5 10 Z D 1, 8, 13 B Z GND 6 9 Y N.C. GND 3 6, 7 GND 7 8 N.C. GND DE RE TYPICAL FULL-DUPLEX OPERATING CIRCUIT DIP/SO 0.1μF MAX13081E VCC VCC 1 MAX13084E MAX13087E VCC 1 8 A R 5 Y A RO 2 7 B DI 3 D Rt R RO 6 DI 3 6 Z Z B GND 4 D 5 Y 8 A Y 2 Rt RO R D DI 7 DIP/SO B Z GND 4 GND TYPICAL FULL-DUPLEX OPERATING CIRCUIT 0.1μF MAX13082E MAX13088E DE RO 1 R 8 VCC RO 1 R 8 VCC D DI 2 7 B B RE 2 7 B RE Rt Rt 3 6 DE 3 6 A DE A A 4 5 RO DI 4 D 5 GND DI D R GND RE DIP/SO 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. 20 Maxim Integrated

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Pin Configurations and Typical Operating Circuits (continued) VCC RE MAX13089E A TOP VIEW RO H/F 1 14 VCC B RXP RO 2 13 RXP RE 3 12 A DE 4 MAX13089E 11 B H/F Z DI 5 10 Z TXP SRL 6 9 Y GND 7 8 TXP Y DIP/SO DI NOTE: SWITCH POSITIONS INDICATED FOR H/F = GND. GND DE SRL Maxim Integrated 21

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Ordering Information (continued) PART TEMP RANGE PIN-PACKAGE PART TEMP RANGE PIN-PACKAGE MAX13081ECPA+ 0°C to +70°C 8 PDIP MAX13086ECPD+ 0°C to +70°C 14 PDIP MAX13081ECSA+ 0°C to +70°C 8 SO MAX13086ECSD+ 0°C to +70°C 14 SO MAX13081EEPA+ -40°C to +85°C 8 PDIP MAX13086EEPD+ -40°C to +85°C 14 PDIP MAX13081EESA+ -40°C to +85°C 8 SO MAX13086EESD+ -40°C to +85°C 14 SO MAX13081EAPA+ -40°C to +125°C 8 PDIP MAX13086EAPD+ -40°C to +125°C 14 PDIP MAX13081EASA+ -40°C to +125°C 8 SO MAX13086EASD+ -40°C to +125°C 14 SO MAX13082ECPA+ 0°C to +70°C 8 PDIP MAX13087ECPA+ 0°C to +70°C 8 PDIP MAX13082ECSA+ 0°C to +70°C 8 SO MAX13087ECSA+ 0°C to +70°C 8 SO MAX13082EEPA+ -40°C to +85°C 8 PDIP MAX13087EEPA+ -40°C to +85°C 8 PDIP MAX13082EESA+ -40°C to +85°C 8 SO MAX13087EESA+ -40°C to +85°C 8 SO MAX13082EAPA+ -40°C to +125°C 8 PDIP MAX13087EAPA+ -40°C to +125°C 8 PDIP MAX13082EASA+ -40°C to +125°C 8 SO MAX13087EASA+ -40°C to +125°C 8 SO MAX13083ECPD+ 0°C to +70°C 14 PDIP MAX13088ECPA+ 0°C to +70°C 8 PDIP MAX13083ECSD+ 0°C to +70°C 14 SO MAX13088ECSA+ 0°C to +70°C 8 SO MAX13083EEPD+ -40°C to +85°C 14 PDIP MAX13088EEPA+ -40°C to +85°C 8 PDIP MAX13083EESD+ -40°C to +85°C 14 SO MAX13088EESA+ -40°C to +85°C 8 SO MAX13083EAPD+ -40°C to +125°C 14 PDIP MAX13088EAPA+ -40°C to +125°C 8 PDIP MAX13083EASD+ -40°C to +125°C 14 SO MAX13088EASA+ -40°C to +125°C 8 SO MAX13084ECPA+ 0°C to +70°C 8 PDIP MAX13089ECPD+ 0°C to +70°C 14 PDIP MAX13084ECSA+ 0°C to +70°C 8 SO MAX13089ECSD+ 0°C to +70°C 14 SO MAX13084EEPA+ -40°C to +85°C 8 PDIP MAX13089EEPD+ -40°C to +85°C 14 PDIP MAX13084EESA+ -40°C to +85°C 8 SO MAX13089EESD+ -40°C to +85°C 14 SO MAX13084EAPA+ -40°C to +125°C 8 PDIP MAX13089EAPD+ -40°C to +125°C 14 PDIP MAX13084EASA+ -40°C to +125°C 8 SO MAX13089EASD+ -40°C to +125°C 14 SO +Denotes a lead(Pb)-free/RoHS-compliant package. 22 Maxim Integrated

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Package Information For the latest package outline information and land patterns (footprints), go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing per- tains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. 8 PDIP P8+2 21-0043 — 8 SO S8+4 21-0041 90-0096 14 PDIP P14+3 21-0043 — 14 SO S14+1 21-0041 90-0112 Maxim Integrated 23

MAX13080E–MAX13084E/ MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Revision History REVISION REVISION PAGES DESCRIPTION NUMBER DATE CHANGED 1, 2, 3, 5, 12. 13, 14, 2 11/11 Deleted all reference to the MAX13085E 15, 16, 17, 18, 19, 20, 22 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. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. 24 Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-1000 © 2011 Maxim Integrated The Maxim logo and Maxim Integrated are trademarks of Maxim Integrated Products, Inc.

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: M axim Integrated: MAX13084EESA+ MAX13084EESA+T MAX13080EASD+ MAX13080ECSD+ MAX13080EESD+ MAX13081ECSA+ MAX13082ECPA+ MAX13082ECSA+ MAX13082EEPA+ MAX13082EESA+ MAX13083ECPD+ MAX13083EEPD+ MAX13083EESD+ MAX13086EEPD+ MAX13086EESD+ MAX13087EESA+ MAX13088EESA+ MAX13089EASD+ MAX13080EASD+T MAX13080ECSD+T MAX13080EESD+T MAX13081EASA+ MAX13081EASA+T MAX13081ECSA+T MAX13081EESA+ MAX13081EESA+T MAX13082EASA+ MAX13082EASA+T MAX13082ECSA+T MAX13082EESA+T MAX13083EESD+T MAX13086EASD+ MAX13086EASD+T MAX13086EESD+T MAX13087ECSA+ MAX13087ECSA+T MAX13087EESA+T MAX13088EASA+ MAX13088EASA+T MAX13088ECSA+T MAX13088EESA+T MAX13089EASD+T MAX13089ECSD+ MAX13089ECSD+T MAX13089EEPD+ MAX13088ECSA+ MAX13087ECPA+ MAX13081EEPA+ MAX13087EASA MAX13089EESD+T MAX13089EESD+