19-3590; Rev 2; 11/11 +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Features The MAX13080E–MAX13089E +5.0V, ±15kV ESD-protected, 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 logichigh if all transmitters on a terminated bus are disabled (high impedance). The MAX13080E family include a hotswap 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 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. o +5.0V Operation The MAX13082E/MAX13088E are intended for halfduplex communications, and the MAX13080E/ MAX13081E/MAX13083E/MAX13084E/MAX13086E/ MAX13087E are intended for full-duplex communications. 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 family 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/MAX13087E/ MAX13088E are available in 8-pin PDIP and 8-pin SO packages. The devices operate over the commercial, extended, and automotive temperature ranges. o Available in Industry-Standard 8-Pin SO Package Applications o Extended ESD Protection for RS-485/RS-422 I/O Pins ±15kV Human Body Model o True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compatibility o Hot-Swap Input Structures on DE and RE o Enhanced Slew-Rate Limiting Facilitates ErrorFree Data Transmission (MAX13080E–MAX13084E/MAX13089E) o Low-Current Shutdown Mode (Except MAX13081E/MAX13084E/MAX13087E) o Pin-Selectable Full-/Half-Duplex Operation (MAX13089E) o Phase Controls to Correct for Twisted-Pair Reversal (MAX13089E) o Allow Up to 256 Transceivers on the Bus Ordering Information PART TEMP RANGE PIN-PACKAGE MAX13080ECPD+ 0°C to +70°C 14 PDIP MAX13080ECSD+ 0°C to +70°C 14 SO MAX13080EEPD+ -40°C to +85°C MAX13080EESD+ -40°C to +85°C MAX13080EAPD+ 14 PDIP 14 SO 14 PDIP -40°C to +125°C 14 SO MAX13080EASD+ -40°C to +125°C +Denotes a lead(Pb)-free/RoHS-compliant package. Ordering Information continued at end of data sheet. Utility Meters Lighting Systems Industrial Control Selector Guide, Pin Configurations, and Typical Operating Circuits appear at end of data sheet. Telecom Security Systems Instrumentation Profibus ________________________________________________________________ Maxim Integrated Products 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. 1 MAX13080E–MAX13084E/MAX13086E–MAX13089E General Description 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) 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 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 = 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 5.5 V DRIVER VCC Supply-Voltage Range VCC Differential Driver Output VOD 4.5 RL = 100Ω (RS-422), Figure 1 3 VCC RL = 54Ω (RS-485), Figure 1 2 VCC VCC 0.2 V 3 V 0.2 V Change in Magnitude of Differential Output Voltage ΔVOD RL = 100Ω or 54Ω, Figure 1 (Note 2) Driver Common-Mode Output Voltage VOC RL = 100Ω or 54Ω, Figure 1 Change in Magnitude of Common-Mode Voltage ΔVOC RL = 100Ω or 54Ω, Figure 1 (Note 2) Input-High Voltage VIH DE, DI, RE, TXP, RXP, H/F Input-Low Voltage VIL DE, DI, RE, TXP, RXP, H/F VHYS DE, DI, RE, TXP, RXP, H/F Input Hysteresis Input Current IIN1 Input Impedance First Transition Input Current IIN2 VCC / 2 3 V 0.8 100 ±1 µA 1 10 kΩ TXP, RXP, H/F internal pulldown 10 40 µA VCC - 0.4 SRL Input-Middle Voltage VCC x 0.3 SRL Input-Low Voltage Output Leakage (Y and Z) Full Duplex 2 V VCC x 0.7 0.4 SRL = VCC 75 SRL = GND IO V mV DE DE, DI, RE SRL Input-High Voltage SRL Input Current V No load DE = GND, VCC = GND or VCC -75 VIN = +12V VIN = -7V 125 -100 _______________________________________________________________________________________ V V µA µA +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers (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 Driver Short-Circuit Output Current Driver Short-Circuit Foldback Output Current SYMBOL IOSD IOSDF CONDITIONS MIN TYP MAX 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 -7V ≤ VOUT ≤ VCC, +85°C ≤ TA ≤ +125°C (Note 3) -270 -40 (VCC - 1V) ≤ VOUT ≤ +12V (Note 3) 20 -7V ≤ VOUT ≤ +1V (Note 3) -20 Thermal-Shutdown Threshold TTS 175 Thermal-Shutdown Hysteresis TTSH 15 VIN = +12V UNITS mA mA °C °C 125 IA, B DE = GND, VCC = GND or VCC Receiver Differential Threshold Voltage VTH -7V ≤ VCM ≤ +12V Receiver Input Hysteresis ΔVTH VA + VB = 0V RO Output-High Voltage VOH IO = -1mA RO Output-Low Voltage VOL IO = 1mA 0.4 V Three-State Output Current at Receiver IOZR 0 ≤ VO ≤ VCC ±1 µA Receiver Input Resistance RIN -7V ≤ VCM ≤ +12V Receiver Output Short-Circuit Current IOSR 0V ≤ VRO ≤ VCC Input Current (A and B) VIN = -7V -100 µA RECEIVER -200 -125 -50 15 mV mV VCC - 0.6 V 96 kΩ ±110 mA SUPPLY CURRENT Supply Current ICC Supply Current in Shutdown Mode ISHDN No load, RE = 0, DE = VCC 1.2 1.8 No load, RE = VCC, DE = VCC 1.2 1.8 No load, RE = 0, DE = 0 1.2 1.8 RE = VCC, DE = GND 2.8 10 Human Body Model ±15 kV Contact Discharge IEC 61000-4-2 ±6 kV mA µA ESD PROTECTION ESD Protection for Y, Z, A, and B _______________________________________________________________________________________ 3 MAX13080E–MAX13084E/MAX13086E–MAX13089E DC ELECTRICAL CHARACTERISTICS (continued) 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 = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5.0V and TA = +25°C.) PARAMETER Driver Propagation Delay Driver Differential Output Rise or Fall Time Differential Driver Output Skew |tDPLH - tDPHL| SYMBOL tDPLH tDPHL CONDITIONS CL= 50pF, RL= 54Ω, Figures 2 and 3 tR , tF CL= 50pF, RL= 54Ω, Figures 2 and 3 tDSKEW CL= 50pF, RL= 54Ω, Figures 2 and 3 Maximum Data Rate Driver Enable to Output High MIN TYP MAX UNITS 350 1800 350 1800 400 1900 ns 250 ns 250 ns kbps tDZH Figure 4 2500 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 700 ns Time to Shutdown tSHDN 50 340 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 Receiver Propagation Delay Receiver Output Skew |tRPLH - tRPHL| SYMBOL tRPLH tRPHL tRSKEW CONDITIONS MIN TYP 200 CL = 15pF, Figures 6 and 7 200 CL = 15pF, Figures 6 and 7 Maximum Data Rate MAX 30 250 UNITS ns ns 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 700 ns Time to Shutdown 4 tSHDN 50 340 _______________________________________________________________________________________ +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers (VCC = +5.0V ±10%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5.0V and TA = +25°C.) PARAMETER Driver Propagation Delay Driver Differential Output Rise or Fall Time Differential Driver Output Skew |tDPLH - tDPHL| SYMBOL tDPLH tDPHL CONDITIONS CL = 50pF, RL = 54Ω, Figures 2 and 3 tR , tF CL = 50pF, RL = 54Ω, Figures 2 and 3 tDSKEW CL = 50pF, RL = 54Ω, Figures 2 and 3 Maximum Data Rate Driver Enable to Output High MIN TYP MAX UNITS 200 1000 200 1000 250 900 ns 140 ns 500 ns kbps tDZH Figure 4 2500 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 700 ns Time to Shutdown tSHDN 50 340 ns RECEIVER SWITCHING CHARACTERISTICS MAX13083E/MAX13084E/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 Receiver Propagation Delay Receiver Output Skew |tRPLH - tRPHL| SYMBOL tRPLH tRPHL tRSKEW CONDITIONS MIN TYP 200 CL = 15pF, Figures 6 and 7 200 CL = 15pF, Figures 6 and 7 Maximum Data Rate MAX 30 500 UNITS ns ns 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 700 ns Time to Shutdown tSHDN 50 340 _______________________________________________________________________________________ 5 MAX13080E–MAX13084E/MAX13086E–MAX13089E DRIVER SWITCHING CHARACTERISTICS MAX13083E/MAX13084E/MAX13089E WITH SRL = VCC (500kbps) 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 = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5.0V and TA = +25°C.) PARAMETER Driver Propagation Delay Driver Differential Output Rise or Fall Time Differential Driver Output Skew |tDPLH - tDPHL| SYMBOL tDPLH tDPHL CONDITIONS MIN TYP MAX 50 CL = 50pF, RL= 54Ω, Figures 2 and 3 50 UNITS ns tR , tF CL = 50pF, RL= 54Ω, Figures 2 and 3 15 ns 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 700 ns Time to Shutdown tSHDN 50 340 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 Receiver Propagation Delay Receiver Output Skew |tRPLH - tRPHL| SYMBOL tRPLH tRPHL tRSKEW CONDITIONS MIN CL = 15pF, Figures 6 and 7 TYP MAX 50 80 50 80 CL = 15pF, Figures 6 and 7 Maximum Data Rate 13 16 UNITS ns ns 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 700 ns Time to Shutdown tSHDN 50 340 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: ΔVOD and ΔVOC 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. 6 _______________________________________________________________________________________ +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 1.30 1.20 DE = VCC 1.10 DE = 0 40 30 20 60 1.00 10 0.90 20 1 2 3 4 0 5 1 2 3 4 5 OUTPUT LOW VOLTAGE (V) RECEIVER OUTPUT-HIGH VOLTAGE vs. TEMPERATURE RECEIVER OUTPUT-LOW VOLTAGE vs. TEMPERATURE DRIVER DIFFERENTIAL OUTPUT CURRENT vs. DIFFERENTIAL OUTPUT VOLTAGE 4.6 4.4 0.6 0.5 0.4 0.3 0.2 4.2 0.1 4.0 0 140 120 100 80 60 40 20 0 -40 -25 -10 -40 -25 -10 5 20 35 50 65 80 95 110 125 160 MAX13080E-89E toc06 IO = 1mA 0.7 DIFFERENTIAL OUTPUT CURRENT (mA) 4.8 MAX13080E-89E toc05 5.0 0.8 OUTPUT LOW VOLTAGE (V) 5.2 MAX13080E-89E toc04 OUTPUT HIGH VOLTAGE (V) IO = -1mA 5 20 35 50 65 80 95 110 125 0 1 2 3 4 5 TEMPERATURE (°C) DIFFERENTIAL OUTPUT VOLTAGE (V) DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs. TEMPERATURE OUTPUT CURRENT vs. TRANSMITTER OUTPUT-HIGH VOLTAGE OUTPUT CURRENT vs. TRANSMITTER OUTPUT-LOW VOLTAGE 4.0 3.6 3.2 2.8 2.4 2.0 180 160 140 120 100 80 60 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) 180 160 140 120 100 80 60 40 40 20 20 0 0 -40 -25 -10 200 MAX13080E-89E toc09 4.4 200 OUTPUT CURRENT (mA) RL = 54Ω OUTPUT CURRENT (mA) 4.8 MAX13080E-89E toc07 TEMPERATURE (°C) MAX13080E-89E toc08 OUTPUT HIGH VOLTAGE (V) 30 TEMPERATURE (°C) 5.4 DIFFERENTIAL OUTPUT VOLTAGE (V) 40 0 0 -40 -25 -10 5 20 35 50 65 80 95 110 125 50 10 0 0.80 MAX13080E-89E toc03 50 70 OUTPUT CURRENT (mA) 1.40 MAX13080E-89E toc02 SUPPLY CURRENT (mA) 1.50 60 OUTPUT CURRENT (mA) NO LOAD MAX13080E-89E toc01 1.60 OUTPUT CURRENT vs. RECEIVER OUTPUT-LOW VOLTAGE OUTPUT CURRENT vs. RECEIVER OUTPUT-HIGH VOLTAGE SUPPLY CURRENT vs. TEMPERATURE -7 -6 -5 -4 -3 -2 -1 0 1 2 OUTPUT HIGH VOLTAGE (V) 3 4 5 0 2 4 6 8 10 12 OUTPUT-LOW VOLTAGE (V) _______________________________________________________________________________________ 7 MAX13080E–MAX13084E/MAX13086E–MAX13089E Typical Operating Characteristics (VCC = +5.0V, TA = +25°C, unless otherwise noted.) Typical Operating Characteristics (continued) (VCC = +5.0V, TA = +25°C, unless otherwise noted.) 6 5 4 3 2 tDPHL 1000 tDPLH 900 800 700 550 tDPHL 500 MAX13080E-89E toc12 7 1100 600 DRIVER PROPAGATION DELAY (ns) 8 1200 MAX13080E-89E toc11 SHUTDOWN CURRENT (μA) 9 DRIVER PROPAGATION DELAY (ns) MAX13080E-89E toc10 10 DRIVER PROPAGATION DELAY vs. TEMPERATURE (500kbps) DRIVER PROPAGATION DELAY vs. TEMPERATURE (250kbps) SHUTDOWN CURRENT vs. TEMPERATURE tDPLH 450 400 350 1 0 300 600 -40 -25 -10 -40 -25 -10 5 20 35 50 65 80 95 110 125 -40 -25 -10 5 20 35 50 65 80 95 110 125 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) TEMPERATURE (°C) TEMPERATURE (°C) DRIVER PROPAGATION DELAY vs. TEMPERATURE (16Mbps) RECEIVER PROPAGATION DELAY vs. TEMPERATURE (250kpbs AND 500kbps) RECEIVER PROPAGATION DELAY vs. TEMPERATURE (16Mbps) 50 40 30 tDPHL 20 10 140 120 100 tDPLH 80 60 tDPHL 40 20 tDPLH 0 5 20 35 50 65 80 95 110 125 160 140 120 100 80 tDPLH 60 40 tDPHL 20 0 0 -40 -25 -10 MAX13080E-89E toc15 160 180 RECEIVER PROPAGATION DELAY (ns) 60 MAX13080E-89E toc14 70 180 RECEIVER PROPAGATION DELAY (ns) MAX13080E-89E toc13 80 DRIVER PROPAGATION DELAY (ns) MAX13080E–MAX13084E/MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers -40 -25 -10 TEMPERATURE (°C) 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) RECEIVER PROPAGATION DELAY (250kbps AND 500kbps) DRIVER PROPAGATION DELAY (250kbps) MAX13080E-89E toc16 MAX13080E-89E toc17 RL = 100Ω RL = 100Ω DI 2V/div VA - V B 5V/div RO 2V/div VY - V Z 5V/div 2μs/div 8 200ns/div _______________________________________________________________________________________ +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers RECEIVER PROPAGATION DELAY (16Mbps) DRIVER PROPAGATION DELAY (16Mbps) DRIVER PROPAGATION DELAY (500kbps) MAX13080E-89E toc18 MAX13080E-89E toc19 RL = 100Ω RL = 100Ω MAX13080E-89E toc20 RL = 100Ω VB 2V/div DI 2V/div DI 2V/div VA 2V/div VZ 2V/div VY - V Z 5V/div RO 2V/div VY 2V/div 40ns/div 10ns/div 400ns/div Test Circuits and Waveforms VCC Y DI VCC/2 0 RL/2 VOD tDPHL tDPLH 1/2 VO Z RL/2 VO VOC Y 1/2 VO Z VO VDIFF 0 -VO Figure 1. Driver DC Test Load VDIFF = V (Y) - V (Z) 10% 90% 90% 10% tF tR tSKEW = | tDPLH - tDPHL | VCC Figure 3. Driver Propagation Delays DE Y DI VOD RL CL Z Figure 2. Driver Timing Test Circuit _______________________________________________________________________________________ 9 MAX13080E–MAX13084E/MAX13086E–MAX13089E Typical Operating Characteristics (continued) (VCC = +5.0V, TA = +25°C, unless otherwise noted.) MAX13080E–MAX13084E/MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Test Circuits and Waveforms (continued) S1 D 0 OR VCC OUT CL 50pF GENERATOR RL = 500Ω 50Ω VCC DE VCC / 2 tDZH, tDZH(SHDN) 0 0.25V OUT VOH 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 VOM = (VOL + VCC) / 2 OUT VOL Figure 5. Driver Enable and Disable Times (tDZL, tDLZ, tDLZ(SHDN)) 10 ______________________________________________________________________________________ 0.25V +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers RECEIVER OUTPUT B VID ATE R A +1V B -1V tRPLH VOH A RO tRPHL VCC/2 VOL 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 VCC 1kΩ -1.5V VID R CL 15pF GENERATOR S2 50Ω S1 OPEN S2 CLOSED S3 = +1.5V S1 CLOSED S2 OPEN S3 = -1.5V VCC VCC VCC/2 RE RE 0 0 tRZH, tRZH(SHDN) tRZL, tRZL(SHDN) VOH RO VCC VOH / 2 (VOL + VCC) / 2 RO 0 S1 OPEN S2 CLOSED S3 = +1.5V VOL S1 CLOSED S2 OPEN S3 = -1.5V VCC VCC/2 VCC/2 RE tRHZ VCC 0 RE 0 tRLZ VCC VOH 0.25V RO 0 RO 0.25V VOL Figure 8. Receiver Enable and Disable Times ______________________________________________________________________________________ 11 MAX13080E–MAX13084E/MAX13086E–MAX13089E Test Circuits and Waveforms (continued) 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 MAX13088E MAX13086E MAX13087E FULL-DUPLEX DEVICES NAME HALFDUPLEX DEVICES FULLDUPLEX MODE HALFDUPLEX MODE FUNCTION 1, 8, 13 — — — — N.C. No Connect. Not internally connected, can be connected to GND. — — — 1 1 H/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. 2 2 1 2 2 RO Receiver Output. When RE is low and if (A - B) ≥ -50mV, RO is high; if (A - B) ≤ -200mV, RO is low. RE 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). 3 — 2 3 3 4 — 3 4 4 DE 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 HotSwap Capability section for details). 5 3 4 5 5 DI Driver Input. With DE high, a low on DI forces noninverting output low and inverting output high. Similarly, a high on DI forces noninverting output high and inverting output low. — — — 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 unconnected for normal transmitter phase/polarity. Connect TXP to VCC to invert the transmitter phase/polarity. 9 5 — 9 — Y Noninverting Driver Output 9 Y Noninverting Driver Output and Noninverting Receiver Input* Inverting Driver Output — 12 MAX13089E — — — 10 6 — 10 — Z — — — — 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 ______________________________________________________________________________________ +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers PIN MAX13080E MAX13081E MAX13082E MAX13083E MAX13084E MAX13088E MAX13086E MAX13087E FULL-DUPLEX DEVICES HALFDUPLEX DEVICES MAX13089E NAME FUNCTION FULLHALFDUPLEX DUPLEX MODE MODE 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. Function Tables MAX13080E/MAX13083E/MAX13086E MAX13081E/MAX13084E/MAX13086E/ MAX13087E TRANSMITTING INPUTS OUTPUTS TRANSMITTING RE DE DI Z Y INPUT 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 OUTPUTS Shutdown RECEIVING RECEIVING INPUTS INPUTS OUTPUT RO OUTPUT A, B RE DE A, B RO ≥ -50mV 1 0 X ≥ -50mV 1 ≤ -200mV 0 0 X ≤ -200mV 0 Open/shorted 1 0 X Open/ shorted 1 1 1 X High-Z 1 0 X Shutdown ______________________________________________________________________________________ 13 MAX13080E–MAX13084E/MAX13086E–MAX13089E Pin Description (continued) MAX13080E–MAX13084E/MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Function Tables (continued) MAX13082E/MAX13088E RECEIVING TRANSMITTING INPUTS INPUTS OUTPUTS OUTPUTS RE DE DI B/Z A/Y RE DE A-B X 1 1 0 1 0 X ≥ -50mV 1 X 1 0 1 0 0 X ≤ -200mV 0 0 0 X High-Z 1 0 X 0 X Open/ shorted 1 1 1 X High-Z 1 0 X Shutdown High-Z Shutdown RO 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 X 1 0 X High-Z Shutdown RECEIVING INPUTS OUTPUTS H/F RXP RE DE 0 0 0 0 0 0 0 1 A, B Y, Z RO X > -50mV X 1 X < -200mV X 0 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 ______________________________________________________________________________________ +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers The MAX13080E–MAX13089E high-speed transceivers for RS-485/RS-422 communication contain one driver and one receiver. These devices feature fail-safe circuitry, 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 drivers disabled (see the Fail-Safe section). The MAX13080E/MAX13082E/MAX13083E/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 reflections caused by improperly terminated cables, allowing error-free data transmission up to 250kbps. The MAX13083E/MAX13084E 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/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 dissipation. When activated, the thermal-shutdown circuitry places the driver outputs into a high-impedance state. Receiver Input Filtering The receivers of the MAX13080E–MAX13084E, 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 receiver’s differential input voltage is pulled to 0V by the termination. 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 insertion, 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 processor’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 500µA current sink, and M1, a 100µA current sink, pull DE to GND through a 5kΩ resistor. 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. ______________________________________________________________________________________ 15 MAX13080E–MAX13084E/MAX13086E–MAX13089E Detailed Description 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 fullduplex mode, the pin configuration of the driver and receiver is the same as that of a MAX13080E. In halfduplex mode, the receiver inputs are internally connected 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. VCC 10μs TIMER SR LATCH TIMER ±15kV ESD Protection 5kΩ DE (HOT SWAP) DE 100μA 500μA M1 M2 Figure 9. Simplified Structure of the Driver Enable Pin (DE) MAX13089E Programming The MAX13089E has several programmable operating modes. Transmitter rise and fall times are programmable, 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: V CC , GND, or unconnected. For 250kbps operation, set the three-state device in highimpedance 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 correct this problem. For normal operation, drive TXP and RXP low, connect them to ground, or leave them unconnected (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/F low, leave it unconnected (internal pulldown), or connect it to GND for full-duplex opera16 As with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electrostatic 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 developed state-of-the-art structures to protect these pins against ESD of ±15kV without damage. The ESD structures 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. ESD protection can be tested in various ways. The transmitter outputs and receiver inputs of the MAX13080E family are characterized for protection 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 discharged 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 1.5kΩ resistor. 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 equipment to meet IEC 61000-4-2, without the need for additional ESD-protection components. ______________________________________________________________________________________ +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers CHARGE-CURRENTLIMIT RESISTOR HIGHVOLTAGE DC SOURCE Cs 100pF RD 1500Ω RC 50MΩ TO 100MΩ DISCHARGE RESISTANCE CHARGE-CURRENTLIMIT RESISTOR DEVICE UNDER TEST STORAGE CAPACITOR Figure 10a. Human Body ESD Test Model IP 100% 90% Cs 150pF DISCHARGE RESISTANCE STORAGE CAPACITOR DEVICE UNDER TEST Figure 10c. IEC 61000-4-2 ESD Test Model I 100% 90% PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE) IPEAK Ir HIGHVOLTAGE DC SOURCE RD 330Ω AMPS 36.8% 10% 0 10% 0 tRL TIME tDL CURRENT WAVEFORM Figure 10b. Human Body Current Waveform 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 withstand 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 resistance. 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. tr = 0.7ns TO 1ns t 30ns 60ns Figure 10d. IEC 61000-4-2 ESD Generator Current Waveform 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 32unit 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 32unit 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 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. ______________________________________________________________________________________ 17 MAX13080E–MAX13084E/MAX13086E–MAX13089E RC 1MΩ MAX13080E–MAX13084E/MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 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 t ZH and t ZL (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). A R 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/MAX13088E/MAX13089E transceivers are designed for bidirectional data communications 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-limited MAX13082E and the two modes of the MAX13089E are more tolerant of imperfect termination. MAX13080E/MAX13081E/MAX13083E/ MAX13084E/MAX13086E/MAX13087E/ MAX13089E (FULL DUPLEX) RO RE 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-shutdown circuit, forces the driver outputs into a high-impedance state if the die temperature exceeds +175°C (typ). DATA IN B 120Ω DE Chip Information Z DI D PROCESS: BiCMOS DATA OUT Y 120Ω 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 RO A B A B A A R R 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 RO RE RE ______________________________________________________________________________________ +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers R RO RE DE Y 120Ω 120Ω D B DI Z Z D DI DE RE RO B 120Ω 120Ω R Y A Y Z B A Y Z B R D DI A MAX13080E MAX13081E MAX13083E MAX13084E MAX13086E MAX13087E MAX31089E (FULL DUPLEX) R D DE RE RO DI DE RE RO 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 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 ______________________________________________________________________________________ 19 MAX13080E–MAX13084E/MAX13086E–MAX13089E A +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13084E/MAX13086E–MAX13089E Pin Configurations and Typical Operating Circuits VCC DE N.C. 1 RO RE 0.1μF 14 4 14 VCC 2 3 12 A DE 4 11 B DI 5 10 Z D GND 6 9 Y GND 7 8 N.C. VCC RE A Y 9 5 DI 13 N.C. R MAX13080E MAX13083E MAX13086E Rt D Z 12 2 RO N.C. B Y A Rt R DI D 11 B 1, 8, 13 RO R 10 Z GND 6, 7 3 GND DE RE TYPICAL FULL-DUPLEX OPERATING CIRCUIT DIP/SO 0.1μF MAX13081E MAX13084E MAX13087E VCC 1 VCC 1 8 A RO 2 7 B DI 3 6 Z 5 Y R D GND 4 5 3 DI VCC A Y Rt D Z 8 2 RO B Y A Rt R DI D 7 B DIP/SO RO R 6 Z GND 4 GND TYPICAL FULL-DUPLEX OPERATING CIRCUIT 0.1μF RO 1 8 R VCC RO RE 2 7 B RE DE 3 6 A DE 5 GND DI DI 4 D 1 R 8 2 7 3 6 4 MAX13082E MAX13088E VCC D B A 5 Rt A GND RO R 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 DI B Rt D DE ______________________________________________________________________________________ +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers VCC RE MAX13089E A RO TOP VIEW H/F 1 14 VCC RO 2 13 RXP RE 3 DE 4 B RXP 12 A MAX13089E DI 5 11 B 10 Z SRL 6 9 Y GND 7 8 TXP H/F Z TXP Y DIP/SO DI NOTE: SWITCH POSITIONS INDICATED FOR H/F = GND. GND DE SRL ______________________________________________________________________________________ 21 MAX13080E–MAX13084E/MAX13086E–MAX13089E Pin Configurations and Typical Operating Circuits (continued) 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 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 -40°C to +85°C 8 SO MAX13089EESD+ -40°C to +85°C 14 SO MAX13089EAPD+ -40°C to +125°C 14 PDIP MAX13089EASD+ -40°C to +125°C 14 SO MAX13084ECPA+ MAX13084EESA+ 8 PDIP -40°C to +125°C 8 SO MAX13084EASA+ -40°C to +125°C +Denotes a lead(Pb)-free/RoHS-compliant package. MAX13084EAPA+ 22 ______________________________________________________________________________________ +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. 8 PDIP P8+2 21-0043 — 90-0096 8 SO S8+4 21-0041 14 PDIP P14+3 21-0043 — 14 SO S14+1 21-0041 90-0112 ______________________________________________________________________________________ 23 MAX13080E–MAX13084E/MAX13086E–MAX13089E 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 pertains to the package regardless of RoHS status. MAX13080E–MAX13084E/MAX13086E–MAX13089E +5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers Revision History REVISION NUMBER REVISION DATE 2 11/11 DESCRIPTION Deleted all reference to the MAX13085E PAGES CHANGED 1, 2, 3, 5, 12. 13, 14, 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. Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 24 © 2011 Maxim Integrated Products Maxim is a registered trademark of Maxim Integrated Products, Inc.