19-3590; Rev 1; 4/05
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers
General Description
The MAX13080E–MAX13089E +5.0V, ±15kV ESD-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–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 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–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 commercial, extended, and automotive temperature ranges. ♦ +5.0V Operation ♦ Extended ESD Protection for RS-485/RS-422 I/O Pins ±15kV Human Body Model ♦ True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compatibility ♦ Hot-Swap Input Structures on DE and RE ♦ Enhanced Slew-Rate Limiting Facilitates ErrorFree Data Transmission (MAX13080E–MAX13085E/MAX13089E) ♦ Low-Current Shutdown Mode (Except MAX13081E/MAX13084E/MAX13087E) ♦ Pin-Selectable Full-/Half-Duplex Operation (MAX13089E) ♦ Phase Controls to Correct for Twisted-Pair Reversal (MAX13089E) ♦ Allow Up to 256 Transceivers on the Bus ♦ Available in Industry-Standard 8-Pin SO Package
Features
MAX13080E–MAX13089E
Ordering Information
PART MAX13080ECPD MAX13080ECSD MAX13080EEPD MAX13080EESD MAX13080EAPD MAX13080EASD TEMP RANGE 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C PINPACKAGE 14 PDIP 14 SO 14 PDIP 14 SO 14 PDIP 14 SO PKG CODE P14-3 S14-2 P14-3 S14-2 P14-3 S14-2
Applications
Utility Meters Lighting Systems Industrial Control Telecom Security Systems Instrumentation Profibus
Ordering Information continued at end of data sheet.
Selector Guide, Pin Configurations, and Typical Operating Circuits appear at end of data sheet.
________________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13089E
ABSOLUTE MAXIMUM RATINGS
(All Voltages Referenced to GND) Supply Voltage (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
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 DRIVER VCC Supply-Voltage Range Differential Driver Output Change in Magnitude of Differential Output Voltage Driver Common-Mode Output Voltage Change in Magnitude of Common-Mode Voltage Input-High Voltage Input-Low Voltage Input Hysteresis Input Current Input Impedance First Transition Input Current SRL Input-High Voltage SRL Input-Middle Voltage SRL Input-Low Voltage SRL Input Current Output Leakage (Y and Z) Full Duplex IO SRL = VCC SRL = GND DE = GND, VCC = GND or VCC VIN = +12V VIN = -7V -100 -75 125 IIN2 VCC RL = 100Ω (RS-422), Figure 1 VOD RL = 54Ω (RS-485), Figure 1 No load ∆VOD VOC ∆VOC VIH VIL VHYS IIN1 RL = 100Ω or 54Ω, Figure 1 (Note 2) RL = 100Ω or 54Ω, Figure 1 RL = 100Ω or 54Ω, Figure 1 (Note 2) DE, DI, RE, TXP, RXP, H/F DE, DI, RE, TXP, RXP, H/F DE, DI, RE, TXP, RXP, H/F DE, DI, RE DE TXP, RXP, H/F internal pulldown 1 10 VCC - 0.4 VCC x 0.3 VCC x 0.7 0.4 75 100 ±1 10 40 3 0.8 VCC / 2 4.5 3 2 5.5 VCC VCC VCC 0.2 3 0.2 V V V V V mV µA kΩ µA V V V µA µA V V SYMBOL CONDITIONS MIN TYP MAX UNITS
2
_______________________________________________________________________________________
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers
DC ELECTRICAL CHARACTERISTICS (continued)
(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 0 ≤ VOUT ≤ +12V (Note 3) -7V ≤ VOUT ≤ VCC (Note 3) Driver Short-Circuit Output Current IOSD 0 ≤ VOUT ≤ +12V, +85°C ≤ TA ≤ +125°C (Note 3) -7V ≤ VOUT ≤ VCC, +85°C ≤ TA ≤ +125°C (Note 3) Driver Short-Circuit Foldback Output Current Thermal-Shutdown Threshold Thermal-Shutdown Hysteresis Input Current (A and B) RECEIVER Receiver Differential Threshold Voltage Receiver Input Hysteresis RO Output-High Voltage RO Output-Low Voltage Three-State Output Current at Receiver Receiver Input Resistance Receiver Output Short-Circuit Current SUPPLY CURRENT No load, RE = 0, DE = VCC Supply Current Supply Current in Shutdown Mode ESD PROTECTION Human Body Model ESD Protection for Y, Z, A, and B Contact Discharge IEC 61000-4-2 ±15 ±6 kV kV ICC No load, RE = VCC, DE = VCC No load, RE = 0, DE = 0 ISHDN RE = VCC, DE = GND 1.2 1.2 1.2 2.8 1.8 1.8 1.8 10 µA mA VTH ∆VTH VOH VOL IOZR RIN IOSR -7V ≤ VCM ≤ +12V V A + VB = 0 IO = -1mA IO = 1mA 0 ≤ VO ≤ VCC -7V ≤ VCM ≤ +12V 0V ≤ VRO ≤ VCC 96 ±110 VCC - 0.6 0.4 ±1 -200 -125 15 -50 mV mV V V µA kΩ mA IOSDF TTS TTSH IA, B DE = GND, VCC = GND or VCC VIN = +12V VIN = -7V -100 (VCC - 1V) ≤ VOUT ≤ +12V (Note 3) -7V ≤ VOUT ≤ +1V (Note 3) 175 15 125 MIN 40 -250 40 -270 20 -20 TYP MAX 250 -40 270 -40 mA °C °C µA mA UNITS
MAX13080E–MAX13089E
_______________________________________________________________________________________
3
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13089E
DRIVER SWITCHING CHARACTERISTICS MAX13080E/MAX13081E/MAX13082E/MAX13089E WITH SRL = UNCONNECTED (250kbps)
(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| Maximum Data Rate Driver Enable to Output High Driver Enable to Output Low Driver Disable Time from Low Driver Disable Time from High Driver Enable from Shutdown to Output High Driver Enable from Shutdown to Output Low Time to Shutdown tDZH tDZL tDLZ tDHZ Figure 4 Figure 5 Figure 5 Figure 4 SYMBOL tDPLH tDPHL tR , tF tDSKEW CONDITIONS CL= 50pF, RL= 54Ω, Figures 2 and 3 CL= 50pF, RL= 54Ω, Figures 2 and 3 CL= 50pF, RL= 54Ω, Figures 2 and 3 250 2500 2500 100 100 5500 5500 50 340 700 MIN 350 350 400 TYP MAX 1800 1800 1900 250 UNITS ns ns ns kbps ns ns ns ns ns ns ns
tDZH(SHDN) Figure 4 tDZL(SHDN) Figure 5 tSHDN
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| Maximum Data Rate Receiver Enable to Output Low Receiver Enable to Output High Receiver Disable Time from Low Receiver Disable Time from High Receiver Enable from Shutdown to Output High Receiver Enable from Shutdown to Output Low Time to Shutdown tRZL tRZH tRLZ tRHZ Figure 8 Figure 8 Figure 8 Figure 8 SYMBOL tRPLH tRPHL tRSKEW CONDITIONS CL = 15pF, Figures 6 and 7 CL = 15pF, Figures 6 and 7 250 50 50 50 50 5500 5500 50 340 700 MIN TYP MAX 200 200 30 UNITS ns ns kbps ns ns ns ns ns ns ns
tRZH(SHDN) Figure 8 tRZL(SHDN) Figure 8 tSHDN
4
_______________________________________________________________________________________
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers
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 Driver Propagation Delay Driver Differential Output Rise or Fall Time Differential Driver Output Skew |tDPLH - tDPHL| Maximum Data Rate Driver Enable to Output High Driver Enable to Output Low Driver Disable Time from Low Driver Disable Time from High Driver Enable from Shutdown to Output High Driver Enable from Shutdown to Output Low Time to Shutdown tDZH tDZL tDLZ tDHZ Figure 4 Figure 5 Figure 5 Figure 4 SYMBOL tDPLH tDPHL tR , tF tDSKEW CONDITIONS CL = 50pF, RL = 54Ω, Figures 2 and 3 CL = 50pF, RL = 54Ω, Figures 2 and 3 CL = 50pF, RL = 54Ω, Figures 2 and 3 500 2500 2500 100 100 5500 5500 50 340 700 MIN 200 200 250 TYP MAX 1000 1000 900 140 UNITS ns ns ns kbps ns ns ns ns ns ns ns
MAX13080E–MAX13089E
tDZH(SHDN) Figure 4 tDZL(SHDN) Figure 5 tSHDN
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 Receiver Propagation Delay Receiver Output Skew |tRPLH - tRPHL| Maximum Data Rate Receiver Enable to Output Low Receiver Enable to Output High Receiver Disable Time from Low Receiver Disable Time from High Receiver Enable from Shutdown to Output High Receiver Enable from Shutdown to Output Low Time to Shutdown tRZL tRZH tRLZ tRHZ Figure 8 Figure 8 Figure 8 Figure 8 SYMBOL tRPLH tRPHL tRSKEW CONDITIONS CL = 15pF, Figures 6 and 7 CL = 15pF, Figures 6 and 7 500 50 50 50 50 5500 5500 50 340 700 MIN TYP MAX 200 200 30 UNITS ns ns kbps ns ns ns ns ns ns ns
tRZH(SHDN) Figure 8 tRZL(SHDN) Figure 8 tSHDN
_______________________________________________________________________________________
5
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13089E
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| Maximum Data Rate Driver Enable to Output High Driver Enable to Output Low Driver Disable Time from Low Driver Disable Time from High Driver Enable from Shutdown to Output High Driver Enable from Shutdown to Output Low Time to Shutdown tDZH tDZL tDLZ tDHZ Figure 4 Figure 5 Figure 5 Figure 4 SYMBOL tDPLH tDPHL tR , tF tDSKEW CONDITIONS CL = 50pF, RL= 54Ω, Figures 2 and 3 CL = 50pF, RL= 54Ω, Figures 2 and 3 CL = 50pF, RL= 54Ω, Figures 2 and 3 16 150 150 100 100 2200 2200 50 340 700 MIN TYP MAX 50 50 15 8 UNITS ns ns ns Mbps ns ns ns ns ns ns ns
tDZH(SHDN) Figure 4 tDZL(SHDN) Figure 5 tSHDN
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| Maximum Data Rate Receiver Enable to Output Low Receiver Enable to Output High Receiver Disable Time from Low Receiver Disable Time from High Receiver Enable from Shutdown to Output High Receiver Enable from Shutdown to Output Low Time to Shutdown tRZL tRZH tRLZ tRHZ Figure 8 Figure 8 Figure 8 Figure 8 SYMBOL tRPLH tRPHL tRSKEW CONDITIONS CL = 15pF, Figures 6 and 7 CL = 15pF, Figures 6 and 7 16 50 50 50 50 2200 2200 50 340 700 MIN TYP 50 50 MAX 80 80 13 UNITS ns ns Mbps ns ns ns ns ns ns ns
tRZH(SHDN) Figure 8 tRZL(SHDN) Figure 8 tSHDN
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. 6 _______________________________________________________________________________________
+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 vs. RECEIVER OUTPUT-HIGH VOLTAGE
MAX13080E-89E toc01 MAX13080E-89E toc02
MAX13080E–MAX13089E
SUPPLY CURRENT vs. TEMPERATURE
1.60 NO LOAD 1.50 SUPPLY CURRENT (mA) 1.40 1.30 1.20 1.10 DE = 0 1.00 0.90 0.80 -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) 10 0 DE = VCC 60 50 OUTPUT CURRENT (mA) 40 30 20
OUTPUT CURRENT vs. RECEIVER OUTPUT-LOW VOLTAGE
MAX13080E-89E toc03
70 60 OUTPUT CURRENT (mA) 50 40 30 20 10 0
0
1
2
3
4
5
0
1
2
3
4
5
OUTPUT HIGH VOLTAGE (V)
OUTPUT LOW VOLTAGE (V)
RECEIVER OUTPUT-HIGH VOLTAGE vs. TEMPERATURE
MAX13080E-89E toc04
RECEIVER OUTPUT-LOW VOLTAGE vs. TEMPERATURE
MAX13080E-89E toc05
DRIVER DIFFERENTIAL OUTPUT CURRENT vs. DIFFERENTIAL OUTPUT VOLTAGE
DIFFERENTIAL OUTPUT CURRENT (mA) 140 120 100 80 60 40 20 0 0 1 2 3 4 5
MAX13080E-89E toc06
5.4 IO = -1mA 5.2 OUTPUT HIGH VOLTAGE (V) 5.0 4.8 4.6 4.4 4.2 4.0
0.8 IO = 1mA 0.7 OUTPUT LOW VOLTAGE (V) 0.6 0.5 0.4 0.3 0.2 0.1 0
160
-40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C)
-40 -25 -10
5 20 35 50 65 80 95 110 125 TEMPERATURE (°C)
DIFFERENTIAL OUTPUT VOLTAGE (V)
DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs. TEMPERATURE
MAX13080E-89E toc07
OUTPUT CURRENT vs. TRANSMITTER OUTPUT-HIGH VOLTAGE
MAX13080E-89E toc08
OUTPUT CURRENT vs. TRANSMITTER OUTPUT-LOW VOLTAGE
180 160 OUTPUT CURRENT (mA) 140 120 100 80 60 40 20 0
MAX13080E-89E toc09
4.8 DIFFERENTIAL OUTPUT VOLTAGE (V) 4.4 4.0 3.6 3.2 2.8 2.4 2.0 -40 -25 -10
RL = 54Ω
200 180 160 OUTPUT CURRENT (mA) 140 120 100 80 60 40 20 0
200
5 20 35 50 65 80 95 110 125 TEMPERATURE (°C)
-7 -6 -5 -4 -3 -2 -1 0
1
2
3
4
5
0
2
4
6
8
10
12
OUTPUT HIGH VOLTAGE (V)
OUTPUT-LOW VOLTAGE (V)
_______________________________________________________________________________________
7
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13089E
Typical Operating Characteristics (continued)
(VCC = +5.0V, TA = +25°C, unless otherwise noted.)
SHUTDOWN CURRENT vs. TEMPERATURE
9 SHUTDOWN CURRENT (µA) 8 7 6 5 4 3 2 1 0 -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) 600 -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) 300 -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C)
MAX13080E-89E toc10
DRIVER PROPAGATION DELAY vs. TEMPERATURE (250kbps)
MAX13080E-89E toc11
DRIVER PROPAGATION DELAY vs. TEMPERATURE (500kbps)
MAX13080E-89E toc12 MAX13080E-89E toc15
10
1200 DRIVER PROPAGATION DELAY (ns) 1100 tDPHL 1000 900 800 700 tDPLH
600 DRIVER PROPAGATION DELAY (ns) 550 500 450 400 350 tDPHL tDPLH
DRIVER PROPAGATION DELAY vs. TEMPERATURE (16Mbps)
MAX13080E-89E toc13
RECEIVER PROPAGATION DELAY vs. TEMPERATURE (250kpbs AND 500kbps)
RECEIVER PROPAGATION DELAY (ns) 160 140 120 100 80 60 40 20 0 -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) tDPLH tDPHL
MAX13080E-89E toc14
RECEIVER PROPAGATION DELAY vs. TEMPERATURE (16Mbps)
180 RECEIVER PROPAGATION DELAY (ns) 160 140 120 100 80 60 40 20 0 -40 -25 -10 5 20 35 50 65 80 95 110 125 TEMPERATURE (°C) tDPLH tDPHL
80 DRIVER PROPAGATION DELAY (ns) 70 60 50 40 30 20 10 0 -40 -25 -10 tDPHL tDPLH
180
5 20 35 50 65 80 95 110 125 TEMPERATURE (°C)
DRIVER PROPAGATION DELAY (250kbps)
MAX13080E-89E toc16
RECEIVER PROPAGATION DELAY (250kbps AND 500kbps)
MAX13080E-89E toc17
RL = 100Ω DI 2V/div
RL = 100Ω VA - V B 5V/div
VY - V Z 5V/div
RO 2V/div
2µs/div
200ns/div
8
_______________________________________________________________________________________
+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)
MAX13080E-89E toc18
MAX13080E–MAX13089E
DRIVER PROPAGATION DELAY (16Mbps)
MAX13080E-89E toc19
RECEIVER PROPAGATION DELAY (16Mbps)
MAX13080E-89E toc20
RL = 100Ω DI 2V/div
RL = 100Ω DI 2V/div
RL = 100Ω
VB 2V/div
VZ 2V/div VY - V Z 5V/div VY 2V/div
VA 2V/div
RO 2V/div
400ns/div
10ns/div
40ns/div
Test Circuits and Waveforms
Y DI RL/2 VOD RL/2 Z VOC 0 VCC VCC/2 tDPLH tDPHL 1/2 VO
Z VO Y 1/2 VO VO VDIFF 0 -VO VDIFF = V (Y) - V (Z) 10% tR tSKEW = | tDPLH - tDPHL | 90% tF 90% 10%
Figure 1. Driver DC Test Load
VCC DE Y DI Z VOD RL CL
Figure 3. Driver Propagation Delays
Figure 2. Driver Timing Test Circuit
_______________________________________________________________________________________
9
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13089E
Test Circuits and Waveforms (continued)
S1 0 OR VCC D CL 50pF OUT RL = 500Ω
GENERATOR
50Ω
VCC DE tDZH, tDZH(SHDN) VCC / 2 0 0.25V OUT VOM = (0 + VOH) / 2 tDHZ 0
VOH
Figure 4. Driver Enable and Disable Times (tDHZ, tDZH, tDZH(SHDN))
VCC RL = 500Ω S1 0 OR VCC D CL 50pF OUT
GENERATOR
50Ω
VCC DE tDZL, tDZL(SHDN) VCC / 2 0
tDLZ VCC OUT VOL VOM = (VOL + VCC) / 2 0.25V
Figure 5. Driver Enable and Disable Times (tDZL, tDLZ, tDLZ(SHDN)) 10 ______________________________________________________________________________________
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers
Test Circuits and Waveforms (continued)
A +1V -1V VOH RO VOL VCC/2 tRPLH tRPHL
MAX13080E–MAX13089E
B ATE VID A R
RECEIVER OUTPUT
B
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 -1.5V
S3 1kΩ VID R CL 15pF VCC
S2
GENERATOR
50Ω
S1 OPEN S2 CLOSED S3 = +1.5V VCC
S1 CLOSED S2 OPEN S3 = -1.5V VCC VCC/2 RE
RE tRZH, tRZH(SHDN) RO
0
0 tRZL, tRZL(SHDN)
VOH VOH / 2 0 RO
VCC (VOL + VCC) / 2 VOL
S1 OPEN S2 CLOSED S3 = +1.5V VCC/2 tRHZ
VCC
S1 CLOSED S2 OPEN S3 = -1.5V VCC/2
VCC
RE
0
RE tRLZ
0
VOH 0.25V RO 0 RO 0.25V
VCC
VOL
Figure 8. Receiver Enable and Disable Times ______________________________________________________________________________________ 11
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13089E
Pin Description
PIN MAX13080E MAX13081E MAX13082E MAX13083E MAX13084E MAX13085E MAX13086E MAX13087E MAX13088E FULL-DUPLEX DEVICES HALFDUPLEX DEVICES — MAX13089E NAME FULLDUPLEX MODE — HALFDUPLEX MODE — N.C. No Connect. Not internally connected, can be connected to GND. 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. Receiver Output. When RE is low and if (A - B) ≥ -50mV, 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 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 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). 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. 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. Ground 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. Noninverting Driver Output Noninverting Driver Output and Noninverting Receiver Input* Inverting Driver Output Inverting Driver Output and Inverting Receiver Input* Inverting Receiver Input Receiver Input Resistors* Inverting Receiver Input and Inverting Driver Output FUNCTION
1, 8, 13
—
—
—
—
1
1
H/F
2
2
1
2
2
RO
3
—
2
3
3
RE
4
—
3
4
4
DE
5
3
4
5
5
DI
—
—
—
6
6
SRL
6, 7 — 9 — 10 — 11 — —
4 — 5 — 6 — 7 — —
5 — — — — — — — 7
7 8 9 — 10 — 11 — —
7 8 — 9 — 10 — 11 —
GND TXP Y Y Z Z B B B
12
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+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers
Pin Description (continued)
PIN MAX13080E MAX13081E MAX13082E MAX13083E MAX13084E MAX13085E MAX13086E MAX13087E MAX13088E FULL-DUPLEX DEVICES 12 — — 8 — — HALFDUPLEX DEVICES — — 6 MAX13089E NAME FULLHALFDUPLEX DUPLEX MODE MODE 12 — — — 12 — A A A Noninverting Receiver Input Receiver Input Resistors* Noninverting Receiver Input and Noninverting Driver Output Receiver Phase. Connect RXP to GND or leave 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 with a 0.1µF capacitor. FUNCTION
MAX13080E–MAX13089E
—
—
—
13
13
RXP
14
1
8
14
14
VCC
*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
TRANSMITTING INPUTS RE X X 0 1 DE 1 1 0 0 DI 1 0 X X RECEIVING INPUTS RE 0 0 0 1 1 DE X X X 1 0 A, B ≥ -50mV ≤ -200mV Open/ shorted X X OUTPUT RO 1 0 1 High-Z Shutdown Z 0 1 High-Z Shutdown RECEIVING INPUTS A, B ≥ -50mV ≤ -200mV Open/shorted OUTPUT RO 1 0 1 OUTPUTS Y 1 0 High-Z INPUT DI 1 0 Z 0 1
MAX13081E/MAX13084E/MAX13086E/ MAX13087E
TRANSMITTING OUTPUTS Y 1 0
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13
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13089E
Function Tables (continued)
MAX13082E/MAX13085E/MAX13088E
TRANSMITTING INPUTS RE X X 0 1 DE 1 1 0 0 DI 1 0 X X 0 1 High-Z Shutdown OUTPUTS B/Z A/Y 1 0 High-Z RE 0 0 0 1 1 INPUTS DE X X X 1 0 A-B ≥ -50mV ≤ -200mV Open/ shorted X X RECEIVING OUTPUTS RO 1 0 1 High-Z Shutdown
MAX13089E
TRANSMITTING INPUTS TXP 0 0 1 1 X X RE X X X X 0 1 DE 1 1 1 1 0 0 RECEIVING INPUTS H/F 0 0 0 0 1 1 1 1 0 1 0 1 X X RXP 0 0 1 1 0 0 1 1 0 0 1 1 X X RE 0 0 0 0 0 0 0 0 0 0 0 0 1 1 DE X X X X 0 0 0 0 X 0 X 0 1 0 A, B > -50mV < -200mV > -50mV < -200mV X X X X Open/shorted X Open/shorted X X X Y, Z X X X X > -50mV < -200mV > -50mV < -200mV X Open/shorted X Open/shorted X X OUTPUTS RO 1 0 0 1 1 0 0 1 1 1 0 0 High-Z Shutdown DI 1 0 1 0 X X Z 0 1 1 0 High-Z Shutdown OUTPUTS Y 1 0 0 1 High-Z
X = Don’t care; shutdown mode, driver, and receiver outputs are high impedance.
14
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+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers
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 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 F ail-Safe section). The MAX13080E/MAX13082E/MAX13083E/MAX13085E/ MAX13086E/MAX13088E/MAX13089E also feature a hotswap 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/MAX13085E also offer slewrate 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 halfduplex 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. 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.
MAX13080E–MAX13089E
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 1.5mA current sink, and M1, a 500µA 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.
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
______________________________________________________________________________________
15
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13089E
VCC 10µs TIMER SR LATCH TIMER
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.
±15kV ESD Protection
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–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 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.
5kΩ DE 100µA 500µA M1 M2
DE (HOT SWAP)
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
______________________________________________________________________________________
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13089E
RC 1MΩ CHARGE-CURRENTLIMIT RESISTOR HIGHVOLTAGE DC SOURCE RD 1500Ω DISCHARGE RESISTANCE DEVICE UNDER TEST HIGHVOLTAGE DC SOURCE RC 50MΩ TO 100MΩ CHARGE-CURRENTLIMIT RESISTOR RD 330Ω DISCHARGE RESISTANCE DEVICE UNDER TEST
Cs 100pF
STORAGE CAPACITOR
Cs 150pF
STORAGE CAPACITOR
Figure 10a. Human Body ESD Test Model
Figure 10c. IEC 61000-4-2 ESD Test Model
I 100% 90% IPEAK
IP 100% 90% AMPS 36.8% 10% 0 0 tRL TIME
Ir
PEAK-TO-PEAK RINGING (NOT DRAWN TO SCALE)
10% tDL CURRENT WAVEFORM tr = 0.7ns TO 1ns 30ns 60ns t
Figure 10b. Human Body Current Waveform
Figure 10d. IEC 61000-4-2 ESD Generator Current Waveform
T he 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.
Applications Information
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.
256 Transceivers on the Bus
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.
17
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+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 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 t ZH and t ZL (see the S witching 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-shutdown circuit, forces the driver outputs into a high-impedance 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 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/MAX13085E and the two modes of the MAX13089E are more tolerant of imperfect termination.
MAX13080E/MAX13081E/MAX13083E/ MAX13084E/MAX13086E/MAX13087E/ MAX13089E (FULL DUPLEX)
A RO RE DE Z DI D Y 120Ω DATA OUT R B 120Ω DATA IN
Chip Information
TRANSISTOR COUNT: 1228 PROCESS: BiCMOS
Figure 11. Line Repeater for MAX13080E/MAX13081E/ MAX13083E/MAX13084E/MAX13086E/MAX13087E/MAX13089E in Full-Duplex Mode
120Ω DI D DE RO RE R R D R B 120Ω B D DI A B A B A A R RO RE DE
MAX13082E MAX13085E MAX13088E MAX13089E (HALF DUPLEX)
D
DI
DE
RO RE
DI
DE
RO RE
Figure 12. Typical Half-Duplex RS-485 Network 18 ______________________________________________________________________________________
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13089E
A RO RE DE DI D R 120Ω B Z Z 120Ω Y A Y Z B A Y Z B A 120Ω B R DE RE RO 120Ω Y D DI
R D D
R
DI
DE RE RO
DI
DE RE RO
MAX13080E MAX13081E MAX13083E MAX13084E MAX13086E MAX13087E MAX31089E (FULL DUPLEX)
NOTE: RE AND DE ON MAX13080E/MAX13083E/MAX13086E/MAX13089E ONLY.
Figure 13. Typical Full-Duplex RS-485 Network
Selector Guide
PART MAX13080E MAX13081E MAX13082E MAX13083E MAX13084E MAX13085E MAX13086E MAX13087E MAX13088E MAX13089E HALF/FULL DUPLEX Full Full Half Full Full Half Full Full Half Selectable DATA RATE (Mbps) 0.250 0.250 0.250 0.5 0.5 0.5 16 16 16 Selectable SLEW-RATE LIMITED Yes Yes Yes Yes Yes Yes No No No Selectable LOW-POWER SHUTDOWN Yes No Yes Yes No Yes Yes No Yes Yes RECEIVER/ DRIVER ENABLE Yes No Yes Yes No Yes Yes No Yes Yes TRANSCEIVERS ON BUS 256 256 256 256 256 256 256 256 256 256 PINS 14 8 8 14 8 8 14 8 8 14
______________________________________________________________________________________
19
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13089E
Pin Configurations and Typical Operating Circuits
DE 4 N.C. 1 RO RE 2 3 R 14 VCC 13 N.C. 12 A 11 B 10 Z D GND 6 GND 7 9Y 8 N.C. N.C. 1, 8, 13 3 RE TYPICAL FULL-DUPLEX OPERATING CIRCUIT GND 6, 7 GND DE RO 2 R DI 5 D VCC 14 9 10 Z 12 11 B Z A Rt B Y D DI Y Rt 0.1µF
MAX13080E MAX13083E MAX13086E
A
VCC RE
R
RO
DE 4 DI 5
DIP/SO
0.1µF VCC 1 VCC 1 RO 2 DI 3 GND 4 D R 8 7 6 5 A B Z Y RO 8 2 R GND 4 GND TYPICAL FULL-DUPLEX OPERATING CIRCUIT 7 B Z DI 3 D 5 6 Z A Rt B Y D DI Y Rt
MAX13081E MAX13084E MAX13087E
A R
VCC
RO
DIP/SO
0.1µF RO 1 RE 2 DE 3 DI 4 D VCC B A GND RO RE DE DI 1 2 3 4 D 8 7 6 5 GND A VCC B Rt
MAX13082E MAX13085E MAX13088E
B Rt A R
DE D DI
R
8 7 6 5
R
RO 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
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+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers
Pin Configurations and Typical Operating Circuits (continued)
VCC RE
MAX13080E–MAX13089E
MAX13089E
A TOP VIEW RO
H/F 1 RO 2 RE 3 DE 4 DI 5 SRL 6 GND 7
14 VCC 13 RXP 12 A
B RXP
MAX13089E
11 B 10 Z 9Y 8 TXP
H/F TXP
Z
Y
DIP/SO
NOTE: SWITCH POSITIONS INDICATED FOR H/F = GND.
DI
GND
DE
SRL
______________________________________________________________________________________
21
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13089E
Ordering Information (continued)
PART MAX13081ECPA MAX13081ECSA MAX13081EEPA MAX13081EESA MAX13081EAPA MAX13081EASA MAX13082ECPA MAX13082ECSA MAX13082EEPA MAX13082EESA MAX13082EAPA MAX13082EASA MAX13083ECPD MAX13083ECSD MAX13083EEPD MAX13083EESD MAX13083EAPD MAX13083EASD MAX13084ECPA MAX13084ECSA MAX13084EEPA MAX13084EESA MAX13084EAPA MAX13084EASA MAX13085ECPA MAX13085ECSA MAX13085EEPA MAX13085EESA MAX13085EAPA MAX13085EASA TEMP RANGE 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C PINPACKAGE 8 PDIP 8 SO 8 PDIP 8 SO 8 PDIP 8 SO 8 PDIP 8 SO 8 PDIP 8 SO 8 PDIP 8 SO 14 PDIP 14 SO 14 PDIP 14 SO 14 PDIP 14 SO 8 PDIP 8 SO 8 PDIP 8 SO 8 PDIP 8 SO 8 PDIP 8 SO 8 PDIP 8 SO 8 PDIP 8 SO PKG CODE P8-2 S8-4 P8-2 S8-4 P8-2 S8-4 P8-2 S8-4 P8-2 S8-4 P8-2 S8-4 P14-3 S14-2 P14-3 S14-2 P14-3 S14-2 P8-2 S8-4 P8-2 S8-4 P8-2 S8-4 P8-2 S8-4 P8-2 S8-4 P8-2 S8-4 PART MAX13086ECPD MAX13086ECSD MAX13086EEPD MAX13086EESD MAX13086EAPD MAX13086EASD MAX13087ECPA MAX13087ECSA MAX13087EEPA MAX13087EESA MAX13087EAPA MAX13087EASA MAX13088ECPA MAX13088ECSA MAX13088EEPA MAX13088EESA MAX13088EAPA MAX13088EASA MAX13089ECPD MAX13089ECSD MAX13089EEPD MAX13089EESD MAX13089EAPD MAX13089EASD TEMP RANGE 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C 0°C to +70°C 0°C to +70°C -40°C to +85°C -40°C to +85°C -40°C to +125°C -40°C to +125°C PINPACKAGE 14 PDIP 14 SO 14 PDIP 14 SO 14 PDIP 14 SO 8 PDIP 8 SO 8 PDIP 8 SO 8 PDIP 8 SO 8 PDIP 8 SO 8 PDIP 8 SO 8 PDIP 8 SO 14 PDIP 14 SO 14 PDIP 14 SO 14 PDIP 14 SO PKG CODE P14-3 S14-2 P14-3 S14-2 P14-3 S14-2 P8-2 S8-4 P8-2 S8-4 P8-2 S8-4 P8-2 S8-4 P8-2 S8-4 P8-2 S8-4 P14-3 S14-2 P14-3 S14-2 P14-3 S14-2
22
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+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers
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.)
PDIPN.EPS
MAX13080E–MAX13089E
______________________________________________________________________________________
23
+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13080E–MAX13089E
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
INCHES DIM A A1 B C e E H L MAX MIN 0.069 0.053 0.010 0.004 0.014 0.019 0.007 0.010 0.050 BSC 0.150 0.157 0.228 0.244 0.016 0.050
MILLIMETERS MAX MIN 1.35 1.75 0.10 0.25 0.35 0.49 0.19 0.25 1.27 BSC 3.80 4.00 5.80 6.20 0.40 1.27
N
E
H
VARIATIONS:
1
INCHES
MILLIMETERS MIN 4.80 8.55 9.80 MAX 5.00 8.75 10.00 N MS012 8 AA 14 AB 16 AC
TOP VIEW
DIM D D D
MIN 0.189 0.337 0.386
MAX 0.197 0.344 0.394
D A e B A1 L C
0∞-8∞
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION TITLE:
PACKAGE OUTLINE, .150" SOIC
APPROVAL DOCUMENT CONTROL NO. REV.
21-0041
B
1 1
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 © 2005 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products, Inc.
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