www.德州仪器.com
特性
描述
SN74AVCB164245
16-bitdual-supplybustransceiver
withconfigurablevoltagetranslationand3-stateoutputs
SCES394D–JUNE2002–REVISEDJUNE2005
•
超（电）压-tolerantinputs/outputsallow
mixed-电压-modedatacommunications
•
MemberoftheTexasInstrumentsWidebus™
家族
•
I
止
supportspartial-电源-downmode
运作
•
DOC™CircuitryDynamicallyChangesOutput
阻抗,resultinginnoisereduction
•
fullyconfigurabledual-raildesignallows
withoutspeeddegradationeachporttooperateoverfull1.4-vto3.6-v
电源-supplyrange
•
DynamicDriveCapabilityIsEquivalentto
StandardOutputsWithI
OH
andI
OL
的
±
24mA
•
获得-upperformanceexceeds100maper
at2.5-vv
CC
jesd78,classii
•
ControlInputsV
IH
/v
IL
LevelsAreReferenced
•
ESDProtectionExceedsJESD22
toV
CCB
电压
–2000-vhuman-bodymodel(a114-一个)
•
IfEitherV
CC
inputisatgnd,bothportsarein
–200-vmachinemodel(a115-一个)
thehigh-impedancestate
–1000-vcharged-devicemodel(c101)
this16-位(双-octal)noninvertingbustransceiverusestwoseparateconfigurablepower-supplyrails.这
AportisdesignedtotrackV
CCA
.v
CCA
acceptsanysupplyvoltagefrom1.4vto3.6v.thebportisdesignedto
trackV
CCB
.v
CCB
acceptsanysupplyvoltagefrom1.4vto3.6v.thisallowsforuniversallow-电压
bidirectionaltranslationbetweenanyofthe1.5-v,1.8-v,2.5-v,and3.3-vvoltagenodes.
thesn74avcb164245isdesignedforasynchronouscommunicationbetweendatabuses.thedevicetransmits
datafromtheabustothebbusorfromthebbustotheabus,dependingonthelogiclevelatthe
方向-控制(dir)输入.theoutput-使能(oe)inputcanbeusedtodisabletheoutputssothebusesare
effectivelyisolated.
thesn74avcb164245isdesignedsothatthecontrolpins(1dir,2dir,1oe,and2oe)aresuppliedbyv
CCB
.
toensurethehigh-impedancestateduringpoweruporpowerdown,oeshouldbetiedtov
CCB
throughapullup
电阻;theminimumvalueoftheresistorisdeterminedbythecurrent-sinkingcapabilityofthedriver.
thisdeviceisfullyspecifiedforpartial-电源-downapplicationsusingi
止
.thei
止
circuitrydisablestheoutputs,
preventingdamagingcurrentbackflowthroughthedevicewhenitispowereddown.ifeitherv
CC
inputisatgnd,
bothportsareinthehigh-impedancestate.
ORDERINGINFORMATION
T
一个
包装
(1)
orderablepartnumbertop-sidemarking
FBGA–GRDTapeandreel74AVCB164245GRDR
WB4245
fbga–zrd(铅-自由)tapeandreel74avcb164245zrdr
TSSOP–DGGTapeandreelSN74AVCB164245GRAVCB164245
–40
°
Cto85
°
C
TVSOP–DGVTapeandreelSN74AVCB164245VR
WB4245
VFBGA–GQLTapeandreelSN74AVCB164245KR
vfbga–zql(铅-自由)tapeandreel74avcb164245zqlrwb4245
(1)packagedrawings,standardpackingquantities,thermaldata,符号化,andpcbdesignguidelinesareavailableat
www.德州仪器.com/sc/包装.
pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsoftexas
instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
widebus,docaretrademarksoftexasinstruments.
productiondatainformationiscurrentasofpublicationdate.
copyright©2002–2005,texasinstrumentsincorporated
ProductsconformtospecificationsperthetermsoftheTexas
instrumentsstandardwarranty.productionprocessingdoesnot
necessarilyincludetestingofallparameters.
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