Datasheet

DESCRIPTION/ORDERINGINFORMATION(CONTINUED)
PCA9555
SCPS131E–AUGUST2005–REVISEDMAY2008......................................................................................................................................................... www.ti.com
Thedeviceoutputs(latched)havehigh-currentdrivecapabilityfordirectlydrivingLEDs.
Althoughpin-to-pinandI
2
C-addressiscompatiblewiththePCF8575,softwarechangesarerequiredduetothe
enhancements.
ThePCA9555isidenticaltothePCA9535,exceptfortheinclusionoftheinternalI/Opullupresistor,whichpulls
theI/Otoadefaulthighwhenconfiguredasaninputandundriven.
Threehardwarepins(A0,A1,andA2)areusedtoprogramandvarythefixedI
2
Caddressandallowuptoeight
devicestosharethesameI
2
CbusorSMBus.ThefixedI
2
CaddressofthePCA9555isthesameasthe
PCF8575,PCF8575C,andPCF8574,allowinguptoeightofthesedevicesinanycombinationtosharethesame
I
2
CbusorSMBus.
ORDERINGINFORMATION
T
A
PACKAGE
(1)(2)
ORDERABLEPARTNUMBERTOP-SIDEMARKING
Reelof2000PCA9555DBR
SSOP–DBPD9555
Tubeof60PCA9555DB
PCA9555DBQR
QSOP–DBQReelof2500PCA9555
PCA9555DBQRG4
TVSOP–DGVReelof2000PCA9555DGVRPD9555
Tubeof25PCA9555DW
SOIC–DWReelof2000PCA9555DWRPCA9555
–40°Cto85°C
Reelof250PCA9555DWT
PCA9555PW
Tubeof60
PCA9555PWE4
TSSOP–PWPCA9555PWRPD9555
Reelof2000
PCA9555PWRE4
Reelof250PCA9555PWT
QFN–RGEReelof3000PCA9555RGERPD9555
(1)Packagedrawings,thermaldata,andsymbolizationareavailableatwww.ti.com/packaging.
(2)Forthemostcurrentpackageandorderinginformation,seethePackageOptionAddendumattheendofthisdocument,orseetheTI
websiteatwww.ti.com.
2SubmitDocumentationFeedbackCopyright©2005–2008,TexasInstrumentsIncorporated
ProductFolderLink(s):PCA9555
Not Recommended for New Designs