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GD75232
MULTIPLERS-232DRIVERSANDRECEIVERS
SLLS206C–MAY1995–REVISEDJULY1998
1POSTOFFICEBOX655303?DALLAS,TEXAS75265
C0068SingleChipWithEasyInterfaceBetween
UARTandSerial-PortConnectorofIBM?
PC/AT?andCompatibles
C0068MeetsorExceedstheRequirementsof
ANSIStandardTIA/EIA-232-FandITU
RecommendationV.28
C0068DesignedtoSupportDataRatesupto
120kbit/s
C0068PinoutCompatibleWithSN75C185and
SN75185
C0068ESDProtectionto2kVonBusTerminals
C0068PackageOptionsIncludePlastic
Small-Outline(DW),ShrinkSmall-Outline
(DB)Packages,andDIPs(N)
description
TheGD75232combinesthreedriversandfivereceiversfromTI?trade-standardSN75188andSN75189
bipolarquadrupledriversandreceivers,respectively.Thepinoutmatchestheflow-throughdesignofthe
SN75C185todecreasethepartcount,reducetheboardspacerequired,andalloweasyinterconnectionofthe
UARTandserial-portconnectorofanIBM?PC/AT?andcompatibles.Thebipolarcircuitsandprocessingof
theGD75232providearugged,low-costsolutionforthisfunctionattheexpenseofquiescentpowerand
externalpassivecomponentsrelativetotheSN75C185.
TheGD75232complieswiththerequirementsoftheTIA/EIA-232-FandITU(formerlyCCITT)V.28standards.
Thesestandardsarefordatainterchangebetweenahostcomputerandaperipheralatsignalingratesupto
20kbit/s.TheswitchingspeedsoftheGD75232arefastenoughtosupportratesupto120kbit/swithlower
capacitiveloads(shortercables).Interoperabilityatthehighersignalingratescannotbeexpectedunlessthe
designerhasdesigncontrolofthecableandtheinterfacecircuitsatbothends.Forinteroperabilityatsignaling
ratesupto120kbit/s,useofANSITIA/EIA-423-B(ITUV.10)andTIA/EIA-422-B(ITUV.11)standardsis
recommended.
TheGD75232ischaracterizedforoperationoverthetemperaturerangeof0°Cto70°C.
Copyright?1998,TexasInstrumentsIncorporated
PRODUCTIONDATAinformationiscurrentasofpublicationdate.
ProductsconformtospecificationsperthetermsofTexasInstruments
standardwarranty.Productionprocessingdoesnotnecessarilyinclude
testingofallparameters.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
V
DD
RA1
RA2
RA3
DY1
DY2
RA4
DY3
RA5
V
SS
V
CC
RY1
RY2
RY3
DA1
DA2
RY4
DA3
RY5
GND
DB,DW,ORNPACKAGE
(TOPVIEW)
Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof
TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
TIisatrademarkofTexasInstrumentsIncorporated.
IBMandPC/ATaretrademarksofInternationalBusinessMachinesCorporation.
GD75232
MULTIPLERS-232DRIVERSANDRECEIVERS
SLLS206C–MAY1995–REVISEDJULY1998
2POSTOFFICEBOX655303?DALLAS,TEXAS75265
logicsymbol
?
9
8
7
6
5
4
3
2
RY5
DA3
RY4
DA2
DA1
RY3
RY2
RY1
RA5
DY3
RA4
DY2
DY1
RA3
RA2
RA1
12
13
14
15
16
17
18
19
?
ThissymbolisinaccordancewithANSI/IEEEStd91-1984
andIECPublication617-12.
logicdiagram(positivelogic)
RY1RA1
RY2RA2
RY3RA3
DA1DY1
DA2DY2
RY4RA4
DA3DY3
RY5RA5
2
3
4
5
6
7
8
9
19
18
12
13
14
15
16
17
schematic(eachdriver)
DYxOutput
320?
68.5?3.3k?
10.4k?
ToOtherDrivers
V
SS
ToOther
Drivers
GND
4.2k?
InputDAx
V
DD
75.8?
9.4k?11.6k?
ToOtherDrivers
Resistorvaluesshownarenominal.
GD75232
MULTIPLERS-232DRIVERSANDRECEIVERS
SLLS206C–MAY1995–REVISEDJULY1998
3POSTOFFICEBOX655303?DALLAS,TEXAS75265
schematic(eachreceiver)
InputRAx
10k?
3.8k?
9k?5k?
1.66k?
GND
RYxOutput
V
CC
ToOtherReceivers
Resistorvaluesshownarenominal.
2k?
ToOtherReceivers
absolutemaximumratingsoveroperatingfree-airtemperaturerange(unlessotherwisenoted)
?
Supplyvoltage,V
CC
(seeNote1)10V............................................................
Supplyvoltage,V
DD
(seeNote1)15V............................................................
Supplyvoltage,V
SS
(seeNote1)–15V...........................................................
Inputvoltagerange,V
I
:Driver–15Vto7V........................................................
Receiver–30Vto30V...................................................
Driveroutputvoltagerange,V
O
–15Vto15V......................................................
Receiverlow-leveloutputcurrent,I
OL
20mA......................................................
Packagethermalimpedance,θ
JA
(seeNote2):DBpackage115°C/W.................................
DWpackage97°C/W.................................
Npackage67°C/W...................................
Storagetemperaturerange,T
stg
–65°Cto150°C..................................................
Leadtemperature1,6mm(1/16inch)fromcasefor10seconds260°C...............................
?
Stressesbeyondthoselistedunder“absolutemaximumratings”maycausepermanentdamagetothedevice.Thesearestressratingsonly,and
functionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder“recommendedoperatingconditions”isnot
implied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability.
NOTES:1.Allvoltagesarewithrespecttothenetworkgroundterminal.
2.ThepackagethermalimpedanceiscalculatedinaccordancewithJESD51,exceptforthrough-holepackages,whichuseatrace
lengthofzero.
GD75232
MULTIPLERS-232DRIVERSANDRECEIVERS
SLLS206C–MAY1995–REVISEDJULY1998
4POSTOFFICEBOX655303?DALLAS,TEXAS75265
recommendedoperatingconditions
MINNOMMAXUNIT
Supplyvoltage,V
DD
7.5915V
Supplyvoltage,V
SS
–7.5–9–15V
Supplyvoltage,V
CC
4.555.5V
High-levelinputvoltage,V
IH
(driveronly)1.9V
Low-levelinputvoltage,V
IL
(driveronly)0.8V
HighleveloutputcurrentI
OH
Driver–6
mA-leveloutputcurrent,
Receiver–0.5
LowleveloutputcurrentI
OL
Driver6
mALow-leveloutputcurrent,
Receiver16
Operatingfree-airtemperature,T
A
070°C
supplycurrentsoverrecommendedoperatingfree-airtemperaturerange
PARAMETERTESTCONDITIONSMINMAXUNIT
V
DD
=9V,V
SS
=–9V15
Allinputsat1.9V,NoloadV
DD
=12V,V
SS
=–12V19mA
I
DD
SupplycurrentfromV
DD
V
DD
=15V,V
SS
=–15V25
Supplycurrent
V
DD
=9V,V
SS
=–9V4.5
Allinputsat0.8V,NoloadV
DD
=12V,V
SS
=–12V5.5mA
V
DD
=15V,V
SS
=–15V9
V
DD
=9V,V
SS
=–9V–15
Allinputsat1.9V,NoloadV
DD
=12V,V
SS
=–12V–19mA
I
SS
SupplycurrentfromV
SS
V
DD
=15V,V
SS
=–15V–25
Supplycurrent
V
DD
=9V,V
SS
=–9V–3.2
Allinputsat0.8V,NoloadV
DD
=12V,V
SS
=–12V–3.2mA
V
DD
=15V,V
SS
=–15V–3.2
I
CC
SupplycurrentfromV
CC
V
CC
=5V,Allinputsat5,Noload30mA
GD75232
MULTIPLERS-232DRIVERSANDRECEIVERS
SLLS206C–MAY1995–REVISEDJULY1998
5POSTOFFICEBOX655303?DALLAS,TEXAS75265
DRIVERSECTION
electricalcharacteristicsoverrecommendedoperatingfree-airtemperaturerange,V
DD
=9V,
V
SS
=–9V,V
CC
=5V(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
V
OH
High-leveloutputvoltageV
IL
=0.8V,R
L
=3k?,SeeFigure167.5V
V
OL
Low-leveloutputvoltage(seeNote3)V
IH
=1.9V,R
L
=3k?,SeeFigure1–7.5–6V
I
IH
High-levelinputcurrentV
I
=5V,SeeFigure210μA
I
IL
Low-levelinputcurrentV
I
=0,SeeFigure2–1.6mA
I
OS(H)
High-levelshort-circuitoutputcurrent
(seeNote4)
V
IL
=0.8V,V
O
=0,SeeFigure1–4.5–12–19.5mA
I
OS(L)
Low-levelshort-circuitoutputcurrentV
IH
=2V,V
O
=0,SeeFigure14.51219.5mA
r
O
Outputresistance(seeNote5)V
CC
=V
DD
=V
SS
=0,V
O
=–2Vto2V300?
NOTES:3.Thealgebraicconvention,wherethemorepositive(lessnegative)limitisdesignatedasmaximum,isusedinthisdatasheetforlogic
levelsonly(e.g.,if–10Vismaximum,thetypicalvalueisamorenegativevoltage).
4.Outputshort-circuitconditionsmustmaintainthetotalpowerdissipationbelowabsolutemaximumratings.
5.TestconditionsarethosespecifiedbyTIA/EIA-232-Fandaslistedabove.
switchingcharacteristics,V
CC
=5V,V
DD
=12V,V
SS
=–12V,T
A
=25°C
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
t
PLH
Propagationdelaytime,
low-tohigh-leveloutput
R
L
=3k?to7k?C
L
=15pFSeeFigure3
315500ns
t
PHL
Propagationdelaytime,
high-tolow-leveloutput
=3kto7k,=15pF,Figure
75175ns
t
TLH
Transitiontime,low-to
R
L
=3k?to7k?,C
L
=15pF,SeeFigure360100ns
,
high-leveloutput
R
L
=3k?to7k?,C
L
=2500pF,SeeFigure3andNote61.72.5μs
t
THL
Transitiontime,high-to
R
L
=3k?to7k?,C
L
=15pF,SeeFigure34075ns
,g
low-leveloutput
R
L
=3k?to7k?,C
L
=2500pF,SeeFigure3andNote61.52.5μs
NOTE6:Measuredbetween±3-Vand±3-Vpointsoftheoutputwaveform(TIA/EIA-232-Fconditions),allunusedinputsaretiedeitherhigh
orlow.
GD75232
MULTIPLERS-232DRIVERSANDRECEIVERS
SLLS206C–MAY1995–REVISEDJULY1998
6POSTOFFICEBOX655303?DALLAS,TEXAS75265
RECEIVERSECTION
electricalcharacteristicsoverrecommendedoperatingconditions(unlessotherwisenoted)
PARAMETERTESTCONDITIONSMINTYP
C0276
MAXUNIT
V
IT
PositivegoinginputthresholdvoltageSeeFigure5
T
A
=25°C1.751.92.3
IT+
Positive-inputvoltageFigure
T
A
=0°Cto70°C1.552.3
V
V
IT–
Negative-goinginputthresholdvoltage0.750.971.25
V
hys
Inputhysteresisvoltage(V
IT+
–V
IT–
)0.5
V
OH
HighleveloutputvoltageI
OH
=05mA
V
IH
=0.75V2.645
V-leveloutputvoltage=–0.mA
Inputsopen2.6
V
OL
Low-levelinputvoltageI
OL
=10mA,V
I
=3V0.20.45V
I
IH
Highlevelinputcurrent
V
I
=25V,SeeFigure53.68.3
mA-levelinputcurrent
V
I
=3V,SeeFigure50.43
I
IL
Lowleveloutputcurrent
V
I
=–25V,SeeFigure5–3.6–8.3
mALow-leveloutputcurrent
V
I
=–3V,SeeFigure5–0.43
I
OS
Short-circuitoutputcurrentSeeFigure4–3.4–12mA
?
AlltypicalvaluesareatT
A
=25°C,V
CC
=5V,V
DD
=9V,andV
SS
=–9V.
switchingcharacteristics,V
CC
=5V,V
DD
=12V,V
SS
=–12V,T
A
=25°C
PARAMETERTESTCONDITIONSMINTYPMAXUNIT
t
PLH
Propagationdelaytime,low-tohigh-leveloutput107250ns
t
PHL
Propagationdelaytime,high-tolow-leveloutput
C
L
=50pF,R
L
=5k?,
42150ns
t
TLH
Transitiontime,low-tohigh-leveloutput
SeeFigure6
175350ns
t
THL
Transitiontime,high-tolow-leveloutput1660ns
t
PLH
Propagationdelaytime,low-tohigh-leveloutput100160ns
t
PHL
Propagationdelaytime,high-tolow-leveloutput
C
L
=15pF,R
L
=1.5k?,
60100ns
t
TLH
Transitiontime,low-tohigh-leveloutput
SeeFigure6
90175ns
t
THL
Transitiontime,high-tolow-leveloutput1550ns
GD75232
MULTIPLERS-232DRIVERSANDRECEIVERS
SLLS206C–MAY1995–REVISEDJULY1998
7POSTOFFICEBOX655303?DALLAS,TEXAS75265
PARAMETERMEASUREMENTINFORMATION
I
OS(L)
–I
OS(H)
V
SS
V
DD
V
CC
V
I
V
O
V
DD
orGND
V
SS
orGND
R
L
=3k?
Figure1.DriverTestCircuitforV
OH
,V
OL
,I
OS(H)
,andI
OS(L)
–I
IL
I
IH
V
SS
V
DD
V
CC
V
I
V
I
Figure2.DriverTestCircuitforI
IH
andI
IL
Pulse
Generator
SeeNoteA
C
L
(seeNoteB)
R
L
3V
0V
1.5V
1.5V
Input
t
PHL
t
PLH
90%
50%
10%
50%
10%
90%
t
THL
t
TLH
V
OH
V
OL
TESTCIRCUIT
VOLTAGEWAVEFORMS
Input
Output
V
SS
V
CC
V
DD
NOTES:A.Thepulsegeneratorhasthefollowingcharacteristics:t
w
=25μs,PRR=20kHz,Z
O
=50?,t
r
=t
f
<50ns.
B.C
L
includesprobeandjigcapacitance.
Figure3.DriverTestCircuitandVoltageWaveforms
GD75232
MULTIPLERS-232DRIVERSANDRECEIVERS
SLLS206C–MAY1995–REVISEDJULY1998
8POSTOFFICEBOX655303?DALLAS,TEXAS75265
PARAMETERMEASUREMENTINFORMATION
V
I
V
DD
V
CC
V
SS
Figure4.ReceiverTestCircuitforI
OS
V
IT
,V
I
V
DD
V
CC
V
SS
I
OL
V
OH
–I
OH
V
OL
Figure5.ReceiverTestCircuitforV
IT
,V
OH
,andV
OL
Pulse
Generator
SeeNoteA
C
L
(seeNoteB)
R
L
4V
0V
50%
50%
Input
t
PHL
t
PLH
90%
50%
10%
50%
10%
90%
t
THL
t
TLH
V
OH
V
OL
TESTCIRCUIT
VOLTAGEWAVEFORMS
Input
V
SS
V
DD
V
CC
Output
NOTES:A.Thepulsegeneratorhasthefollowingcharacteristics:t
w
=25μs,PRR=20kHz,Z
O
=50?,t
r
=t
f
<50ns.
B.C
L
includesprobeandjigcapacitance.
Figure6.ReceiverPropagationandTransitionTimes
GD75232
MULTIPLERS-232DRIVERSANDRECEIVERS
SLLS206C–MAY1995–REVISEDJULY1998
9POSTOFFICEBOX655303?DALLAS,TEXAS75265
TYPICALCHARACTERISTICS
DRIVERSECTION
Figure7
VO–OutputV
oltage–V
VOLTAGETRANSFERCHARACTERISTICS
????????
????????
V
DD
=6V,V
SS
=–6V
9
6
3
0
–3
–6
–9
1.81.61.41.210.80.60.40.2
–12
2
12
V
I
–InputVoltage–V
0
????????
????????
V
DD
=12V,V
SS
=–12V
????????
V
DD
=9V,V
SS
=–9V
????
????
R
L
=3k?
T
A
=25°C
V
O
Figure8
IO–OutputCurrent–mA
OUTPUTCURRENT
vs
OUTPUTVOLTAGE
V
OH
(V
I
=0.8V)
V
SS
=–9V
16
12
8
4
0
–4
–8
–12
–16
12840–4–8–12
–20
16
20
V
O
–OutputVoltage–V
–16
?????
?????
V
OL
(V
I
=1.9V)
I
O
???
3-k?
??????
??????
V
DD
=9V
????
????
T
A
=25°C
LoadLine
Figure9
IOS–Short-CircuitOutputCurrent–mA
SHORT-CIRCUITOUTPUTCURRENT
vs
FREE-AIRTEMPERATURE
????
V
O
=0
?????
?????
V
SS
=–9V
70605040302010
9
6
3
0
–3
–6
–9
–12
12
T
A
–Free-AirTemperature–°C
0
V
DD
=9V
áá
áá
I
OS
??????
I
OS(H)
(V
I
=0.8V)
I
OS(L)
(V
I
=1.9V)
SLEWRATE
vs
LOADCAPACITANCE
Figure10
áááá
áááá
áááá
áááá
SR–SlewRate–V/
????
????
T
A
=25°C
R
L
=3k?
V
SS
=–9V
V
DD
=9V
100
10
1000100
1
10000
1000
C
L
–LoadCapacitance–pF
μ
s
10
GD75232
MULTIPLERS-232DRIVERSANDRECEIVERS
SLLS206C–MAY1995–REVISEDJULY1998
10POSTOFFICEBOX655303?DALLAS,TEXAS75265
TYPICALCHARACTERISTICS
Figure11
INPUTTHRESHOLDVOLTAGE
vs
FREE-AIRTEMPERATURE
2.2
2
1.8
1.6
1.4
1.2
0.8
0.6
0.4
2.4
T
A
–Free-AirTemperature–°C
V
IT–
V
IT
+
706050403020100
–InputThresholdV
oltage–V
V
IT
1
Figure12
INPUTTHRESHOLDVOLTAGE
vs
SUPPLYVOLTAGE
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
9876543
0
10
2
V
CC
–SupplyVoltage–V
2
V
IT–
V
IT+
–InputThresholdV
oltage–V
V
IT
Figure13
Amplitude–V
NOISEREJECTION
????
????
C
C
=300pF
????
????
????
V
CC
=5V
T
A
=25°C
SeeNoteA
10
t
w
–PulseDuration–ns
6
10000
0
1
2
3
4
5
4010040010004000
áááá
áááá?????
C
C
=500pF
áááá
áááá
C
C
=12pF
áááá
áááá
?????
?????
C
C
=100pF
NOTEA:Thisfigureshowsthemaximumamplitudeofa
positive-goingpulsethat,startingfrom0V,doesnot
causeachangeoftheoutputlevel.
Figure14
–MaximumSupplyV
oltage–V
MAXIMUMSUPPLYVOLTAGE
vs
FREE-AIRTEMPERATURE
R
L
≥3k?(fromeachoutputtoGND)
14
12
10
8
6
4
2
70605040302010
0
16
T
A
–Free-AirTemperature–°C
0
DD
V
GD75232
MULTIPLERS-232DRIVERSANDRECEIVERS
SLLS206C–MAY1995–REVISEDJULY1998
11POSTOFFICEBOX655303?DALLAS,TEXAS75265
APPLICATIONINFORMATION
DiodesplacedinserieswiththeV
DD
andV
SS
leadsprotecttheGD75232inthefaultconditioninwhichthedevice
outputsareshortedto±15Vandthepowersuppliesareatlowandprovidelow-impedancepathstoground(see
Figure15).
V
DD
V
SS
±15V
Output
V
DD
V
SS
GD75232GD75232
Figure15.Power-SupplyProtectiontoMeetPower-OffFaultConditionsofTIA/EIA-232-F
11
12
13
14
15
16
17
18
19
20
GND
RY5
DA3
RY4
DA2
DA1
RY3
RY2
RY1
V
CC
V
SS
RA5
DY3
RA4
DY2
DY1
RA3
RA2
RA1
V
DD
10
9
8
7
6
5
4
3
2
1
43
37
40
13
36
11
41
42
RI
DTR
CTS
SO
RTS
SI
DSR
DCD
RI
DTR
CTS
TX
RTS
RX
DSR
DCD
GD75232
5V
TL16C450
ACE
1
5
6
9
12V
–12V
TIA/EIA-232-F
DB9S
Connector
C1
C3
C2
Figure16.TypicalConnection
IMPORTANTNOTICE
TexasInstrumentsanditssubsidiaries(TI)reservetherighttomakechangestotheirproductsortodiscontinue
anyproductorservicewithoutnotice,andadvisecustomerstoobtainthelatestversionofrelevantinformation
toverify,beforeplacingorders,thatinformationbeingreliedoniscurrentandcomplete.Allproductsaresold
subjecttothetermsandconditionsofsalesuppliedatthetimeoforderacknowledgement,includingthose
pertainingtowarranty,patentinfringement,andlimitationofliability.
TIwarrantsperformanceofitssemiconductorproductstothespecificationsapplicableatthetimeofsalein
accordancewithTI’sstandardwarranty.Testingandotherqualitycontroltechniquesareutilizedtotheextent
TIdeemsnecessarytosupportthiswarranty.Specifictestingofallparametersofeachdeviceisnotnecessarily
performed,exceptthosemandatedbygovernmentrequirements.
CERTAINAPPLICATIONSUSINGSEMICONDUCTORPRODUCTSMAYINVOLVEPOTENTIALRISKSOF
DEATH,PERSONALINJURY,ORSEVEREPROPERTYORENVIRONMENTALDAMAGE(“CRITICAL
APPLICATIONS”).TISEMICONDUCTORPRODUCTSARENOTDESIGNED,AUTHORIZED,OR
WARRANTEDTOBESUITABLEFORUSEINLIFE-SUPPORTDEVICESORSYSTEMSOROTHER
CRITICALAPPLICATIONS.INCLUSIONOFTIPRODUCTSINSUCHAPPLICATIONSISUNDERSTOODTO
BEFULLYATTHECUSTOMER’SRISK.
Inordertominimizerisksassociatedwiththecustomer’sapplications,adequatedesignandoperating
safeguardsmustbeprovidedbythecustomertominimizeinherentorproceduralhazards.
TIassumesnoliabilityforapplicationsassistanceorcustomerproductdesign.TIdoesnotwarrantorrepresent
thatanylicense,eitherexpressorimplied,isgrantedunderanypatentright,copyright,maskworkright,orother
intellectualpropertyrightofTIcoveringorrelatingtoanycombination,machine,orprocessinwhichsuch
semiconductorproductsorservicesmightbeorareused.TI’spublicationofinformationregardinganythird
party’sproductsorservicesdoesnotconstituteTI’sapproval,warrantyorendorsementthereof.
Copyright?1998,TexasInstrumentsIncorporated
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