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SN65176B,SN75176B
SLLS101F–JULY1985–REVISEDJANUARY2015
SNx5176BDifferentialBusTransceivers
1Features3Description
TheSN65176BandSN75176Bdifferentialbus
1?BidirectionalTransceivers
transceiversaredesignedforbidirectionaldata
?MeetorExceedtheRequirementsofANSIcommunicationonmultipointbustransmissionlines.
StandardsTIA/EIA-422-BandTIA/EIA-485-ATheyaredesignedforbalancedtransmissionlines
andITURecommendationsV.11andX.27andmeetANSIStandardsTIA/EIA-422-Band
?DesignedforMultipointTransmissiononTIA/EIA-485-AandITURecommendationsV.11and
LongBusLinesinNoisyEnvironmentsX.27.
?3-StateDriverandReceiverOutputsTheSN65176BandSN75176Bdevicescombinea3-
?IndividualDriverandReceiverEnablesstatedifferentiallinedriverandadifferentialinputline
receiver,bothofwhichoperatefromasingle5-V
?WidePositiveandNegativeInput/OutputBus
powersupply.Thedriverandreceiverhaveactive-
VoltageRangeshighandactive-lowenables,respectively,thatcanbe
?±60-mAMaxDriverOutputCapabilityconnectedtogetherexternallytofunctionasa
?ThermalShutdownProtectiondirectioncontrol.Thedriverdifferentialoutputsand
?DriverPositiveandNegativeCurrentLimitingthereceiverdifferentialinputsareconnected
internallytoformdifferentialinput/output(I/O)bus
?12-k?MinReceiverInputImpedanceportsthataredesignedtoofferminimumloadingto
?±200-mVReceiverInputSensitivitythebuswhenthedriverisdisabledorVCC=0.These
?50-mVTypReceiverInputHysteresisportsfeaturewidepositiveandnegativecommon-
modevoltageranges,makingthedevicesuitablefor
?OperateFromSingle5-VSupplyparty-lineapplications.
2ApplicationsThedriverisdesignedforupto60mAofsinkor
sourcecurrent.Thedriverfeaturespositiveand
?Chemical/GasSensorsnegativecurrentlimitingandthermalshutdownfor
?DigitalSignageprotectionfromline-faultconditions.Thermal
?HMI(HumanMachineInterfaces)shutdownisdesignedtooccuratajunction
temperatureofapproximately150°C.Thereceiver
?MotorControls:ACInduction,BrushedandBrush-featuresaminimuminputimpedanceof12kΩ,an
lessDC,Low-andHigh-Voltage,StepperMotors,inputsensitivityof±200mV,andatypicalinput
andPermanentMagnetshysteresisof50mV.
?TETRABaseStations
(1)
?TelecomTowers:RemoteElectricalTiltUnitsDeviceInformation
(RET)andTowerMountedAmplifiers(TMA)PARTNUMBERPACKAGE(PIN)BODYSIZE(NOM)
?WeighScalesSOIC(8)4.90mm×3.91mm
?WirelessRepeatersSNx5176PDIP(8)9.81mm×6.35mm
SOP(8)6.20mm×5.30mm
(1)Forallavailablepackages,seetheorderableaddendumat
theendofthedatasheet.
4SimplifiedSchematic
3
DE
4
D
2
RE6
1A
R7Bus
B
1
AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications,
intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA.
SN65176B,SN75176B
SLLS101F–JULY1985–REVISEDJANUARY2015www.ti.com
TableofContents
1Features..................................................................19.2FunctionalBlockDiagram.......................................12
2Applications...........................................................19.3FeatureDescription.................................................12
3Description.............................................................19.4DeviceFunctionalModes........................................13
4SimplifiedSchematic.............................................110ApplicationandImplementation........................14
5RevisionHistory.....................................................210.1ApplicationInformation..........................................14
10.2TypicalApplication...............................................14
6PinConfigurationandFunctions.........................3
10.3SystemExamples.................................................15
7Specifications.........................................................4
11PowerSupplyRecommendations.....................16
7.1AbsoluteMaximumRatings......................................4
7.2RecommendedOperatingConditions.......................412Layout...................................................................16
7.3ThermalInformation..................................................412.1LayoutGuidelines.................................................16
7.4ElectricalCharacteristics–Driver.............................512.2LayoutExample....................................................16
7.5ElectricalCharacteristics–Receiver........................613DeviceandDocumentationSupport.................16
7.6SwitchingCharacteristics–Driver............................613.1RelatedLinks........................................................16
7.7SwitchingCharacteristics–Receiver........................613.2Trademarks...........................................................16
7.8TypicalCharacteristics..............................................713.3ElectrostaticDischargeCaution............................16
8ParameterMeasurementInformation..................913.4Glossary................................................................16
9DetailedDescription............................................1214Mechanical,Packaging,andOrderable
Information...........................................................16
9.1Overview.................................................................12
5RevisionHistory
ChangesfromRevisionE(January2014)toRevisionFPage
?AddedApplications,DeviceInformationtable,PinFunctionstable,ESDRatingstable,ThermalInformationtable,
FeatureDescriptionsection,DeviceFunctionalModes,ApplicationandImplementationsection,PowerSupply
Recommendationssection,Layoutsection,DeviceandDocumentationSupportsection,andMechanical,
Packaging,andOrderableInformationsection......................................................................................................................1
?MovedTypicalCharacteristicsinsideoftheSpecificationssection.......................................................................................7
ChangesfromRevisionD(April2003)toRevisionEPage
?UpdateddocumenttonewTIdatasheetformat-nospecificationchanges.........................................................................1
?DeletedOrderingInformationtable........................................................................................................................................1
?AddedESDwarning.............................................................................................................................................................16
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6PinConfigurationandFunctions
TopView
R18VCC
RE27B
DE36A
D45GND
PinFunctions
PIN
TYPEDESCRIPTION
NAMENO.
R1OLogicDataOutputfromRS-485Receiver
RE2IReceiveEnable(activelow)
DE3IDriverEnable(activehigh)
D4ILogicDataInputtoRS-485Driver
GND5—DeviceGroundPin
A6I/ORS-422orRS-485DataLine
B7I/ORS-422orRS-485DataLine
VCC8—PowerInput.Connectto5-VPowerSource.
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7Specifications
7.1AbsoluteMaximumRatings
overoperatingfree-airtemperaturerange(unlessotherwisenoted)(1)
MINMAXUNIT
(2)
VCCSupplyvoltage7V
Voltagerangeatanybusterminal–1015V
VIEnableinputvoltage5.5V
TJOperatingvirtualjunctiontemperature150°C
TstgStoragetemperaturerange–65150°C
Leadtemperature1,6mm(1/16inch)fromcasefor10seconds260°C
(1)StressesbeyondthoselistedunderAbsoluteMaximumRatingsmaycausepermanentdamagetothedevice.Thesearestressratings
only,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderRecommendedOperating
Conditionsisnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.
(2)Allvoltagevalues,exceptdifferentialinput/outputbusvoltage,arewithrespecttonetworkgroundterminal.
7.2RecommendedOperatingConditions
MINTYPMAXUNIT
VCCSupplyvoltage4.7555.25V
VIorVICVoltageatanybusterminal(separatelyorcommonmode)-712V
VIHHigh-levelinputvoltageD,DE,andRE2V
VILLow-levelinputvoltageD,DE,andRE0.8V
(1)
VIDDifferentialinputvoltage±12V
Driver–60mA
IOHHigh-leveloutputcurrent
Receiver–400μA
Driver60
IOLLow-leveloutputcurrentmA
Receiver8
SN65176B–40105
TAOperatingfree-airtemperature°C
SN75176B070
(1)Differentialinput/outputbusvoltageismeasuredatthenon-invertingterminalA,withrespecttotheinvertingterminalB.
7.3ThermalInformation
SNx5176
THERMALMETRIC(1)BDBPBPSUNIT
8PINS
RθJAJunction-to-ambientthermalresistance978595°C/W
(1)Formoreinformationabouttraditionalandnewthermalmetrics,seetheICPackageThermalMetricsapplicationreport(SPRA953).
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7.4ElectricalCharacteristics–Driver
overrecommendedrangesofsupplyvoltageandoperatingfree-airtemperature(unlessotherwisenoted)
PARAMETERTESTCONDITIONS(1)MINTYP(2)MAXUNIT
VIKInputclampvoltageII=–18mA–1.5V
VOOutputvoltageIO=006V
|VOD1|DifferentialoutputvoltageIO=01.53.66V
(3)
RL=100Ω,seeFigure10?VOD1or2
|VOD2|DifferentialoutputvoltageV
RL=54Ω,seeFigure101.52.55
(4)
VOD3DifferentialoutputvoltageSee1.55V
Changeinmagnitudeof
?|V|R=54?or100?,seeFigure10±0.2V
ODdifferentialoutputvoltage(5)L
VOCCommon-modeoutputvoltageRL=54?or100?,seeFigure10-1+3V
Changeinmagnitudeof
?|VOC|common-modeoutputRL=54?or100?,seeFigure10±0.2V
voltage(5)
(6)VO=12V1
IOOutputcurrentOutputdisabledmA
VO=–7V–0.8
IIHHigh-levelinputcurrentVI=2.4V20μA
IILLow-levelinputcurrentVI=0.4V–400μA
VO=–7V–250
VO=0–150
IOSShort-circuitoutputcurrentmA
VO=VCC250
VO=12V250
Outputsenabled4270
ICCSupplycurrent(totalpackage)NoloadmA
Outputsdisabled2635
(1)Thepower-offmeasurementinANSIStandardTIA/EIA-422-Bappliestodisabledoutputsonlyandisnotappliedtocombinedinputsand
outputs.
(2)AlltypicalvaluesareatVCC=5VandTA=25°C.
(3)TheminimumVOD2witha100-Ωloadiseither?VOD1or2V,whicheverisgreater.
(4)SeeANSIStandardTIA/EIA-485-A,Figure3.5,TestTerminationMeasurement2.
(5)Δ|VOD|andΔ|VOC|arethechangesinmagnitudeofVODandVOC,respectively,thatoccurwhentheinputischangedfromahighlevel
toalowlevel.
(6)Thisappliesforbothpoweronandoff;refertoANSIStandardTIA/EIA-485-Aforexactconditions.TheTIA/EIA-422-Blimitdoesnot
applyforacombineddriverandreceiverterminal.
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7.5ElectricalCharacteristics–Receiver
overrecommendedrangesofcommon-modeinputvoltage,supplyvoltage,andoperatingfree-airtemperature(unless
otherwisenoted)
PARAMETERTESTCONDITIONSMINTYP(1)MAXUNIT
VIT+Positive-goinginputthresholdvoltageVO=2.7V,IO=–0.4mA0.2V
(2)
VIT–Negative-goinginputthresholdvoltageVO=0.5V,IO=8mA–0.2V
VhysInputhysteresisvoltage(VIT+–VIT–)50mV
VIKEnableInputclampvoltageII=–18mA–1.5V
VOHHigh-leveloutputvoltageVID=200mV,IOH=–400μA,seeFigure112.7V
VOLLow-leveloutputvoltageVID=–200mV,IOL=8mA,seeFigure110.45V
IOZHigh-impedance-stateoutputcurrentVO=0.4Vto2.4V±20μA
(3)VI=12V1
IILineinputcurrentOtherinput=0VmA
VI=–7V–0.8
IIHHigh-levelenableinputcurrentVIH=2.7V20μA
IILLow-levelenableinputcurrentVIL=0.4V–100μA
rIInputresistanceVI=12V12k?
IOSShort-circuitoutputcurrent–15–85mA
Outputsenabled4255
ICCSupplycurrent(totalpackage)NoloadmA
Outputsdisabled2635
(1)AlltypicalvaluesareatVCC=5V,TA=25°C.
(2)Thealgebraicconvention,inwhichthelesspositive(morenegative)limitisdesignatedminimum,isusedinthisdatasheetforcommon-
modeinputvoltageandthresholdvoltagelevelsonly.
(3)Thisappliesforbothpoweronandpoweroff.RefertoEIAStandardTIA/EIA-485-Aforexactconditions.
7.6SwitchingCharacteristics–Driver
VCC=5V,RL=110Ω,TA=25°C(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
td(OD)Differential-outputdelaytimeRL=54?,seeFigure121522ns
tt(OD)Differential-outputtransitiontimeRL=54?,seeFigure122030ns
tPZHOutputenabletimetohighlevelSeeFigure1385120ns
tPZLOutputenabletimetolowlevelSeeFigure144060ns
tPHZOutputdisabletimefromhighlevelSeeFigure13150250ns
tPLZOutputdisabletimefromlowlevelSeeFigure142030ns
7.7SwitchingCharacteristics–Receiver
VCC=5V,CL=15pF,TA=25°C
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
tPLHPropagationdelaytime,low-tohigh-leveloutput2135
VID=0to3V,seeFigure15ns
tPHLPropagationdelaytime,high-tolow-leveloutput2335
tPZHOutputenabletimetohighlevel1020
SeeFigure16ns
tPZLOutputenabletimetolowlevel1220
tPHZOutputdisabletimefromhighlevel2035
SeeFigure16ns
tPLZOutputdisabletimefromlowlevel1725
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7.8TypicalCharacteristics
55
VCC=5VVCC=5V
°
4.5TA=25°C4.5TA=25C
–V
4–V4
3.53.5
33
2.52.5
22
1.51.5
High-LevelOutputVoltage
–Low-LevelOutputVoltage
11
OL
OH
V
V
VOH–
0.50.5
00
0–20–40–60–80–100–120020406080100120
IOH–High-LevelOutputCurrent–mAIOL–Low-LevelOutputCurrent–mA
Figure1.DriverHigh-LevelOutputVoltageFigure2.DriverLow-LevelOutputVoltage
vsvs
High-LevelOutputCurrentLow-LevelOutputCurrent
45
VID=0.2V
VCC=5V
4.5TA=25°C
3.5TA=25°C
–V
–V4
3
3.5
2.5
3
22.5
VCC=5.25V
2
1.5VCC=5V
1.5
DifferentialOutputVoltageV=4.75V
High-LevelOutputVoltageCC
1
1
OD
OH
V
VOD–
V
0.5VOH–0.5
00
01020304050607080901000–5–10–15–20–25–30–35–40–45–50
I–OutputCurrent–mA
OIOH–High-LevelOutputCurrent–mA
Figure3.DriverDifferentialOutputVoltageFigure4.ReceiverHigh-LevelOutputVoltage
vsvs
OutputCurrentHigh-LevelOutputCurrent
50.6
VCC=5VVCC=5V
4.5VID=200mVTA=25°C
IOH=–440μA
–V0.5
–V4
3.5
0.4
3
2.50.3
2
0.2
1.5
Low-LevelOutputVoltage
High-LevelOutputVoltage
1
OL
V0.1
OH
VOL–
V
VOH–0.5
00
–40–20020406080100120051015202530
TA–Free-AirTemperature–°CIOL–Low-LevelOutputCurrent–mA
Onlythe0°Cto70°CportionofthecurveappliestotheOnlythe0°Cto70°Cportionofthecurveappliestothe
SN75176Bdevice.SN75176Bdevice.
Figure5.ReceiverHigh-LevelOutputVoltageFigure6.ReceiverLow-LevelOutputVoltage
vsvs
Free-AirTemperatureLow-LevelOutputCurrent
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TypicalCharacteristics(continued)
0.65
VCC=5VVID=0.2V
VID=–200mVLoad=8k?toGND
I=8mATA=25°C
–V0.5OL
4VCC=5.25V
–V
0.4
VCC=5V
3VCC=4.75V
0.3
2
OutputVoltage
0.2
O
Low-LevelOutputVoltage
V
VO–
1
OL
V0.1
VOL–
00
–40–2002040608010012000.511.522.53
TA–Free-AirTemperature–°CVI–EnableVoltage–V
Figure7.ReceiverLow-LevelOutputVoltageFigure8.ReceiverOutputVoltage
vsvs
Free-AirTemperatureEnableVoltage
6
VID=–0.2V
VCC=5.25V
Load=1k?toVCC
°
5TA=25C
VCC=4.75V
VCC=5V
–V
4
3
OutputVoltage
2
O
V
VO–
1
0
00.511.522.53
VI–EnableVoltage–V
Figure9.ReceiverOutputVoltage
vs
EnableVoltage
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8ParameterMeasurementInformation
RL
2
VOD2
RL
VOC
2
Figure10.DriverVODandVOC
ID
VOH
+IOL–IOH
VOL
Figure11.ReceiverVOHandVOL
3V
Input1.5V1.5V
0V
CL=50pF
(seeNoteA)tt
RL=54?d(OD)d(OD)
Generator
50?Output≈2.5V
(seeNoteB)90%
Output50%50%
10%10%≈
3V–2.5V
tt(OD)tt(OD)
TESTCIRCUITVOLTAGEWAVEFORMS
A.CLincludesprobeandjigcapacitance.
B.Theinputpulseissuppliedbyageneratorhavingthefollowingcharacteristics:PRR≤1MHz,50%dutycycle,tr≤6
ns,tf≤6ns,ZO=50Ω.
Figure12.DriverTestCircuitandVoltageWaveforms
Output3V
S1Input1.5V1.5V
0Vor3V0V
0.5V
CL=50pFtPZH
RL=110?
(seeNoteA)VOH
Generator
50?Output
(seeNoteB)2.3V
≈
tPHZVoff0V
TESTCIRCUITVOLTAGEWAVEFORMS
A.CLincludesprobeandjigcapacitance.
B.Theinputpulseissuppliedbyageneratorhavingthefollowingcharacteristics:PRR≤1MHz,50%dutycycle,tr≤6
ns,tf≤6ns,ZO=50Ω.
Figure13.DriverTestCircuitandVoltageWaveforms
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ParameterMeasurementInformation(continued)
5V
3V
?
RL=110Input1.5V1.5V
S1
Output0V
3Vor0V
CL=50pFtPZLtPLZ
(seeNoteA)
Generator50?5V
(seeNoteB)0.5V
Output2.3V
VOL
TESTCIRCUITVOLTAGEWAVEFORMS
A.CLincludesprobeandjigcapacitance.
B.Theinputpulseissuppliedbyageneratorhavingthefollowingcharacteristics:PRR≤1MHz,50%dutycycle,tr≤6
ns,tf≤6ns,ZO=50Ω.
Figure14.DriverTestCircuitandVoltageWaveforms
3V
Input1.5V1.5V
GeneratorOutput
51?0V
(seeNoteB)
1.5VtPLHtPHL
CL=15pF
(seeNoteA)VOH
Output
0V1.3V1.3V
VOL
TESTCIRCUITVOLTAGEWAVEFORMS
A.CLincludesprobeandjigcapacitance.
B.Theinputpulseissuppliedbyageneratorhavingthefollowingcharacteristics:PRR≤1MHz,50%dutycycle,tr≤6
ns,tf≤6ns,ZO=50Ω.
Figure15.ReceiverTestCircuitandVoltageWaveforms
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ParameterMeasurementInformation(continued)
1.5VS1
2k?S2
–1.5V5V
CL=15pF
(seeNoteA)5k?1N916orEquivalent
Generator
50?
(seeNoteB)
S3
TESTCIRCUIT
3V3V
Input
1.5VInput1.5V
S1to1.5VS1to–1.5V
0VS2Open0VS2Closed
tS3ClosedS3Open
PZHtPZL
VOH
≈4.5V
Output1.5V
Output
0V1.5V
VOL
3V3V
S1to1.5VS1to–1.5V
Input1.5VS2ClosedInput1.5VS2Closed
S3ClosedS3Closed
0V0V
tPHZ
tPLZ
VOH≈1.3V
0.5V
OutputOutput0.5V
≈
1.3VVOL
VOLTAGEWAVEFORMS
A.CLincludesprobeandjigcapacitance.
B.Theinputpulseissuppliedbyageneratorhavingthefollowingcharacteristics:PRR≤1MHz,50%dutycycle,tr≤6
ns,tf≤6ns,ZO=50Ω.
Figure16.ReceiverTestCircuitandVoltageWaveforms
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9DetailedDescription
9.1Overview
TheSN65176BandSN75176Bdifferentialbustransceiversareintegratedcircuitsdesignedforbidirectionaldata
communicationonmultipointbustransmissionlines.Theyaredesignedforbalancedtransmissionlinesandmeet
ANSIStandardsTIA/EIA-422-BandTIA/EIA-485-AandITURecommendationsV.11andX.27.
TheSN65176BandSN75176Bdevicescombinea3-statedifferentiallinedriverandadifferentialinputline
receiver,bothofwhichoperatefromasingle5-Vpowersupply.Thedriverandreceiverhaveactive-highand
active-lowenables,respectively,thatcanbeconnectedtogetherexternallytofunctionasadirectioncontrol.The
driverdifferentialoutputsandthereceiverdifferentialinputsareconnectedinternallytoformdifferential
input/output(I/O)busportsthataredesignedtoofferminimumloadingtothebuswhenthedriverisdisabledor
VCC=0.Theseportsfeaturewidepositiveandnegativecommon-modevoltageranges,makingthedevice
suitableforparty-lineapplications.
Thedriverisdesignedforupto60mAofsinkorsourcecurrent.Thedriverfeaturespositiveandnegative
currentlimitingandthermalshutdownforprotectionfromline-faultconditions.Thermalshutdownisdesignedto
occuratajunctiontemperatureofapproximately150°C.Thereceiverfeaturesaminimuminputimpedanceof12
kΩ,aninputsensitivityof±200mV,andatypicalinputhysteresisof50mV.
TheSN65176BandSN75176Bdevicescanbeusedintransmission-lineapplicationsemployingtheSN75172
andSN75174quadrupledifferentiallinedriversandSN75173andSN75175quadrupledifferentiallinereceivers.
9.2FunctionalBlockDiagram
3
DE
4
D
2
RE6
1A
R7Bus
B
9.3FeatureDescription
9.3.1Driver
ThedriverconvertsaTTLlogicsignalleveltoRS-422andRS-485compliantdifferentialoutput.TheTTLlogic
input,DEpin,canbeusedtoturnthedriveronandoff.
Table1.DriverFunctionTable(1)
INPUTENABLEDIFFERENTIALOUTPUTS
DDE
AB
HHHL
LHLH
XLZZ
(1)H=highlevel,
L=lowlevel,
X=irrelevant,
Z=highimpedance(off)
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9.3.2Receiver
ThereceiverconvertsaRS-422orRS-485differentialinputvoltagetoaTTLlogicleveloutput.TheTTLlogic
input,REpin,canbeusedtoturnthereceiverlogicoutputonandoff.
Table2.ReceiverFunctionTable(1)
DIFFERENTIALINPUTSENABLEOUTPUT
A–BRER
VID≥0.2VLH
–0.2V
VID≤–0.2VLL
XHZ
OpenLU
(1)H=highlevel,
L=lowlevel,
U=unknown,
Z=highimpedance(off)
9.4DeviceFunctionalModes
9.4.1DevicePowered
Boththedriverandreceivercanbeindividuallyenabledordisabledinanycombination.DEandREcanbe
connectedtogetherforasingleportdirectioncontrolbit.
9.4.2DeviceUnpowered
Thedriverdifferentialoutputsandthereceiverdifferentialinputsareconnectedinternallytoformdifferential
input/output(I/O)busportsthataredesignedtoofferminimumloadingtothebuswhenthedriverisdisabledor
VCC=0.
9.4.3SymbolCrossReference
Table3.SymbolEquivalents
DATASHEET
TIA/EIA-422-BTIA/EIA-485-A
PARAMETER
VOVoa,VobVoa,Vob
|VOD1|VoVo
|VOD2|Vt?L=100?)Vt?L=54?)
V(testtermination
|V|t
OD3measurement2)
?|VOD|||Vt|–|Vt||||Vt–|Vt||
VOC|Vos||Vos|
?|VOC||Vos–Vos||Vos–Vos|
IOS|Isa|,|Isb|
IO|Ixa|,|Ixb|Iia,Iib
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10ApplicationandImplementation
NOTE
InformationinthefollowingapplicationssectionsisnotpartoftheTIcomponent
specification,andTIdoesnotwarrantitsaccuracyorcompleteness.TI’scustomersare
responsiblefordeterminingsuitabilityofcomponentsfortheirpurposes.Customersshould
validateandtesttheirdesignimplementationtoconfirmsystemfunctionality.
10.1ApplicationInformation
ThedevicecanbeusedinRS-485andRS-422physicallayercommunications.
10.2TypicalApplication
SN65176BSN65176B
SN75176BSN75176B
RTRT
Upto32
Transceivers
Thelineshouldbeterminatedatbothendsinitscharacteristicimpedance?T=ZO).Stublengthsoffthemainline
shouldbekeptasshortaspossible.
Figure17.TypicalRS-485ApplicationCircuit
10.2.1DesignRequirements
?5-Vpowersource
?RS-485busoperatingat10Mbpsorless
?Connectorthatensuresthecorrectpolarityforportpins
?Externalfailsafeimplementation
10.2.2DetailedDesignProcedure
?Placethedeviceclosetobusconnectortokeeptraces(stub)shorttopreventaddingreflectionstothebus
line
?Ifdesired,addexternalfail-safebiasingtoensure+200mVontheA-Bport.
14SubmitDocumentationFeedbackCopyright?1985–2015,TexasInstrumentsIncorporated
ProductFolderLinks:SN65176BSN75176B
SN65176B,SN75176B
www.ti.comSLLS101F–JULY1985–REVISEDJANUARY2015
TypicalApplication(continued)
10.2.3ApplicationCurves
Figure18.EyeDiagramfor10-Mbits/sover100feetofstandardCAT-5Ecable
120-ΩTerminationatbothends.Scaleis1Vperdivisionand25nSperdivision
10.3SystemExamples
EQUIVALENTOFEACHINPUTTYPICALOFAANDBI/OPORTSTYPICALOFRECEIVEROUTPUT
V
VCCVCCCC
85?
R(eq)NOM
16.8k?960?
InputNOMNOM
960?
NOMOutput
GND
Driverinput:R(eq)=3k?NOMInput/Output
Enableinputs:R(eq)=8k?NOMPort
R(eq)=EquivalentResistor
Figure19.SchematicsofInputsandOutputs
Copyright?1985–2015,TexasInstrumentsIncorporatedSubmitDocumentationFeedback15
ProductFolderLinks:SN65176BSN75176B
SN65176B,SN75176B
SLLS101F–JULY1985–REVISEDJANUARY2015www.ti.com
11PowerSupplyRecommendations
Powersupplyshouldbe5Vwithatolerancelessthan10%
12Layout
12.1LayoutGuidelines
TracesfromdevicepinsAandBtoconnectormustbeshortandcapableof250mAmaximumcurrent.
12.2LayoutExample
GND
1.5μF
TTLLogic1RVCC85V
TTLLogic2REB7B
Connector
TTLLogic3DEA6A
TTLLogic4DGND5GND
LayoutDiagram
13DeviceandDocumentationSupport
13.1RelatedLinks
Thetablebelowlistsquickaccesslinks.Categoriesincludetechnicaldocuments,supportandcommunity
resources,toolsandsoftware,andquickaccesstosampleorbuy.
Table4.RelatedLinks
TECHNICALTOOLS&SUPPORT&
PARTSPRODUCTFOLDERSAMPLE&BUY
DOCUMENTSSOFTWARECOMMUNITY
SN65176BClickhereClickhereClickhereClickhereClickhere
SN75176BClickhereClickhereClickhereClickhereClickhere
13.2Trademarks
Alltrademarksarethepropertyoftheirrespectiveowners.
13.3ElectrostaticDischargeCaution
Thesedeviceshavelimitedbuilt-inESDprotection.Theleadsshouldbeshortedtogetherorthedeviceplacedinconductivefoam
duringstorageorhandlingtopreventelectrostaticdamagetotheMOSgates.
13.4Glossary
SLYZ022—TIGlossary.
Thisglossarylistsandexplainsterms,acronyms,anddefinitions.
14Mechanical,Packaging,andOrderableInformation
Thefollowingpagesincludemechanical,packaging,andorderableinformation.Thisinformationisthemost
currentdataavailableforthedesignateddevices.Thisdataissubjecttochangewithoutnoticeandrevisionof
thisdocument.Forbrowser-basedversionsofthisdatasheet,refertotheleft-handnavigation.
16SubmitDocumentationFeedbackCopyright?1985–2015,TexasInstrumentsIncorporated
ProductFolderLinks:SN65176BSN75176B
PACKAGEOPTIONADDENDUM
www.ti.com15-Jun-2016
PACKAGINGINFORMATION
OrderableDeviceStatusPackageTypePackagePinsPackageEcoPlanLead/BallFinishMSLPeakTempOpTemp(°C)DeviceMarkingSamples
(1)DrawingQty(2)(6)(3)(4/5)
SN65176BDACTIVESOICD875Green(RoHSCUNIPDAULevel-1-260C-UNLIM-40to10565176B
&noSb/Br)
SN65176BDG4ACTIVESOICD875Green(RoHSCUNIPDAULevel-1-260C-UNLIM-40to10565176B
&noSb/Br)
SN65176BDRACTIVESOICD82500Green(RoHSCUNIPDAULevel-1-260C-UNLIM-40to10565176B
&noSb/Br)
SN65176BDRE4ACTIVESOICD82500Green(RoHSCUNIPDAULevel-1-260C-UNLIM-40to10565176B
&noSb/Br)
SN65176BDRG4ACTIVESOICD82500Green(RoHSCUNIPDAULevel-1-260C-UNLIM-40to10565176B
&noSb/Br)
SN65176BPACTIVEPDIPP850Pb-FreeCUNIPDAUN/AforPkgType-40to105SN65176BP
(RoHS)
SN75176BDACTIVESOICD875Green(RoHSCUNIPDAULevel-1-260C-UNLIM0to7075176B
&noSb/Br)
SN75176BDE4ACTIVESOICD875Green(RoHSCUNIPDAULevel-1-260C-UNLIM0to7075176B
&noSb/Br)
SN75176BDG4ACTIVESOICD875Green(RoHSCUNIPDAULevel-1-260C-UNLIM0to7075176B
&noSb/Br)
SN75176BDRACTIVESOICD82500Green(RoHSCUNIPDAULevel-1-260C-UNLIM0to7075176B
&noSb/Br)
SN75176BDRE4ACTIVESOICD82500Green(RoHSCUNIPDAULevel-1-260C-UNLIM0to7075176B
&noSb/Br)
SN75176BDRG4ACTIVESOICD82500Green(RoHSCUNIPDAULevel-1-260C-UNLIM0to7075176B
&noSb/Br)
SN75176BPACTIVEPDIPP850Pb-FreeCUNIPDAUN/AforPkgType0to70SN75176BP
(RoHS)
SN75176BPE4ACTIVEPDIPP850Pb-FreeCUNIPDAUN/AforPkgType0to70SN75176BP
(RoHS)
SN75176BPSRACTIVESOPS82000Green(RoHSCUNIPDAULevel-1-260C-UNLIM0to70A176B
&noSb/Br)
SN75176BPSRG4ACTIVESOPS82000Green(RoHSCUNIPDAULevel-1-260C-UNLIM0to70A176B
&noSb/Br)
(1)Themarketingstatusvaluesaredefinedasfollows:
ACTIVE:Productdevicerecommendedfornewdesigns.
Addendum-Page1
PACKAGEOPTIONADDENDUM
www.ti.com15-Jun-2016
LIFEBUY:TIhasannouncedthatthedevicewillbediscontinued,andalifetime-buyperiodisineffect.
NRND:Notrecommendedfornewdesigns.Deviceisinproductiontosupportexistingcustomers,butTIdoesnotrecommendusingthispartinanewdesign.
PREVIEW:Devicehasbeenannouncedbutisnotinproduction.Samplesmayormaynotbeavailable.
OBSOLETE:TIhasdiscontinuedtheproductionofthedevice.
(2)EcoPlan-Theplannedeco-friendlyclassification:Pb-Free(RoHS),Pb-Free(RoHSExempt),orGreen(RoHS&noSb/Br)-pleasecheckhttp://www.ti.com/productcontentforthelatestavailability
informationandadditionalproductcontentdetails.
TBD:ThePb-Free/Greenconversionplanhasnotbeendefined.
Pb-Free(RoHS):TI''sterms"Lead-Free"or"Pb-Free"meansemiconductorproductsthatarecompatiblewiththecurrentRoHSrequirementsforall6substances,includingtherequirementthat
leadnotexceed0.1%byweightinhomogeneousmaterials.Wheredesignedtobesolderedathightemperatures,TIPb-Freeproductsaresuitableforuseinspecifiedlead-freeprocesses.
Pb-Free(RoHSExempt):ThiscomponenthasaRoHSexemptionforeither1)lead-basedflip-chipsolderbumpsusedbetweenthedieandpackage,or2)lead-baseddieadhesiveusedbetween
thedieandleadframe.ThecomponentisotherwiseconsideredPb-Free(RoHScompatible)asdefinedabove.
Green(RoHS&noSb/Br):TIdefines"Green"tomeanPb-Free(RoHScompatible),andfreeofBromine(Br)andAntimony(Sb)basedflameretardants(BrorSbdonotexceed0.1%byweight
inhomogeneousmaterial)
(3)MSL,PeakTemp.-TheMoistureSensitivityLevelratingaccordingtotheJEDECindustrystandardclassifications,andpeaksoldertemperature.
(4)Theremaybeadditionalmarking,whichrelatestothelogo,thelottracecodeinformation,ortheenvironmentalcategoryonthedevice.
(5)MultipleDeviceMarkingswillbeinsideparentheses.OnlyoneDeviceMarkingcontainedinparenthesesandseparatedbya"~"willappearonadevice.Ifalineisindentedthenitisacontinuation
ofthepreviouslineandthetwocombinedrepresenttheentireDeviceMarkingforthatdevice.
(6)Lead/BallFinish-OrderableDevicesmayhavemultiplematerialfinishoptions.Finishoptionsareseparatedbyaverticalruledline.Lead/BallFinishvaluesmaywraptotwolinesifthefinish
valueexceedsthemaximumcolumnwidth.
ImportantInformationandDisclaimer:TheinformationprovidedonthispagerepresentsTI''sknowledgeandbeliefasofthedatethatitisprovided.TIbasesitsknowledgeandbeliefoninformation
providedbythirdparties,andmakesnorepresentationorwarrantyastotheaccuracyofsuchinformation.Effortsareunderwaytobetterintegrateinformationfromthirdparties.TIhastakenand
continuestotakereasonablestepstoproviderepresentativeandaccurateinformationbutmaynothaveconducteddestructivetestingorchemicalanalysisonincomingmaterialsandchemicals.
TIandTIsuppliersconsidercertaininformationtobeproprietary,andthusCASnumbersandotherlimitedinformationmaynotbeavailableforrelease.
InnoeventshallTI''sliabilityarisingoutofsuchinformationexceedthetotalpurchasepriceoftheTIpart(s)atissueinthisdocumentsoldbyTItoCustomeronanannualbasis.
Addendum-Page2
PACKAGEMATERIALSINFORMATION
www.ti.com13-Feb-2014
TAPEANDREELINFORMATION
Alldimensionsarenominal
DevicePackagePackagePinsSPQReelReelA0B0K0P1WPin1
TypeDrawingDiameterWidth(mm)(mm)(mm)(mm)(mm)Quadrant
(mm)W1(mm)
SN65176BDRSOICD82500330.012.46.45.22.18.012.0Q1
SN65176BDRG4SOICD82500330.012.46.45.22.18.012.0Q1
SN75176BDRSOICD82500330.012.46.45.22.18.012.0Q1
SN75176BDRG4SOICD82500330.012.46.45.22.18.012.0Q1
SN75176BPSRSOPS82000330.016.48.26.62.512.016.0Q1
PackMaterials-Page1
PACKAGEMATERIALSINFORMATION
www.ti.com13-Feb-2014
Alldimensionsarenominal
DevicePackageTypePackageDrawingPinsSPQLength(mm)Width(mm)Height(mm)
SN65176BDRSOICD82500340.5338.120.6
SN65176BDRG4SOICD82500340.5338.120.6
SN75176BDRSOICD82500340.5338.120.6
SN75176BDRG4SOICD82500340.5338.120.6
SN75176BPSRSOPS82000367.0367.038.0
PackMaterials-Page2
IMPORTANTNOTICE
TexasInstrumentsIncorporatedanditssubsidiaries(TI)reservetherighttomakecorrections,enhancements,improvementsandother
changestoitssemiconductorproductsandservicesperJESD46,latestissue,andtodiscontinueanyproductorserviceperJESD48,latest
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suppliedatthetimeoforderacknowledgment.
TIwarrantsperformanceofitscomponentstothespecificationsapplicableatthetimeofsale,inaccordancewiththewarrantyinTI’sterms
andconditionsofsaleofsemiconductorproducts.TestingandotherqualitycontroltechniquesareusedtotheextentTIdeemsnecessary
tosupportthiswarranty.Exceptwheremandatedbyapplicablelaw,testingofallparametersofeachcomponentisnotnecessarily
performed.
TIassumesnoliabilityforapplicationsassistanceorthedesignofBuyers’products.Buyersareresponsiblefortheirproductsand
applicationsusingTIcomponents.TominimizetherisksassociatedwithBuyers’productsandapplications,Buyersshouldprovide
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TIdoesnotwarrantorrepresentthatanylicense,eitherexpressorimplied,isgrantedunderanypatentright,copyright,maskworkright,or
otherintellectualpropertyrightrelatingtoanycombination,machine,orprocessinwhichTIcomponentsorservicesareused.Information
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endorsementthereof.Useofsuchinformationmayrequirealicensefromathirdpartyunderthepatentsorotherintellectualpropertyofthe
thirdparty,oralicensefromTIunderthepatentsorotherintellectualpropertyofTI.
ReproductionofsignificantportionsofTIinformationinTIdatabooksordatasheetsispermissibleonlyifreproductioniswithoutalteration
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documentation.Informationofthirdpartiesmaybesubjecttoadditionalrestrictions.
ResaleofTIcomponentsorserviceswithstatementsdifferentfromorbeyondtheparametersstatedbyTIforthatcomponentorservice
voidsallexpressandanyimpliedwarrantiesfortheassociatedTIcomponentorserviceandisanunfairanddeceptivebusinesspractice.
TIisnotresponsibleorliableforanysuchstatements.
Buyeracknowledgesandagreesthatitissolelyresponsibleforcompliancewithalllegal,regulatoryandsafety-relatedrequirements
concerningitsproducts,andanyuseofTIcomponentsinitsapplications,notwithstandinganyapplications-relatedinformationorsupport
thatmaybeprovidedbyTI.Buyerrepresentsandagreesthatithasallthenecessaryexpertisetocreateandimplementsafeguardswhich
anticipatedangerousconsequencesoffailures,monitorfailuresandtheirconsequences,lessenthelikelihoodoffailuresthatmightcause
harmandtakeappropriateremedialactions.BuyerwillfullyindemnifyTIanditsrepresentativesagainstanydamagesarisingoutoftheuse
ofanyTIcomponentsinsafety-criticalapplications.
Insomecases,TIcomponentsmaybepromotedspecificallytofacilitatesafety-relatedapplications.Withsuchcomponents,TI’sgoalisto
helpenablecustomerstodesignandcreatetheirownend-productsolutionsthatmeetapplicablefunctionalsafetystandardsand
requirements.Nonetheless,suchcomponentsaresubjecttotheseterms.
NoTIcomponentsareauthorizedforuseinFDAClassIII(orsimilarlife-criticalmedicalequipment)unlessauthorizedofficersoftheparties
haveexecutedaspecialagreementspecificallygoverningsuchuse.
OnlythoseTIcomponentswhichTIhasspecificallydesignatedasmilitarygradeor“enhancedplastic”aredesignedandintendedforusein
military/aerospaceapplicationsorenvironments.BuyeracknowledgesandagreesthatanymilitaryoraerospaceuseofTIcomponents
whichhavenotbeensodesignatedissolelyattheBuyer''srisk,andthatBuyerissolelyresponsibleforcompliancewithalllegaland
regulatoryrequirementsinconnectionwithsuchuse.
TIhasspecificallydesignatedcertaincomponentsasmeetingISO/TS16949requirements,mainlyforautomotiveuse.Inanycaseofuseof
non-designatedproducts,TIwillnotberesponsibleforanyfailuretomeetISO/TS16949.
ProductsApplications
Audiowww.ti.com/audioAutomotiveandTransportationwww.ti.com/automotive
Amplifiersamplifier.ti.comCommunicationsandTelecomwww.ti.com/communications
DataConvertersdataconverter.ti.comComputersandPeripheralswww.ti.com/computers
DLP?Productswww.dlp.comConsumerElectronicswww.ti.com/consumer-apps
DSPdsp.ti.comEnergyandLightingwww.ti.com/energy
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Interfaceinterface.ti.comMedicalwww.ti.com/medical
Logiclogic.ti.comSecuritywww.ti.com/security
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Microcontrollersmicrocontroller.ti.comVideoandImagingwww.ti.com/video
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WirelessConnectivitywww.ti.com/wirelessconnectivity
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Copyright?2016,TexasInstrumentsIncorporated |
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