Datasheet

DESCRIPTION/ORDERINGINFORMATION(CONTINUED)
PCA9554
SCPS128B–JULY2006–REVISEDAUGUST2008........................................................................................................................................................ www.ti.com
Thedevice'soutputs(latched)havehigh-currentdrivecapabilityfordirectlydrivingLEDsandlowcurrent
consumption.
Threehardwarepins(A0,A1,andA2)areusedtoprogramandvarythefixedI
2
Caddressandallowuptoeight
devicestosharethesameI
2
CbusorSMBus.
ThePCA9554ispin-to-pinandI
2
CaddresscompatiblewiththePCF8574.However,softwarechangesare
required,duetotheenhancementsinthePCA9554overthePCF8574.
ThePCA9554andPCA9554AareidenticalexceptfortheirfixedI
2
Caddress.Thisallowsforupto16ofthese
devices(eightofeach)onthesameI
2
C/SMBus.
ORDERINGINFORMATION
T
A
PACKAGE
(1)(2)
ORDERABLEPARTNUMBERTOP-SIDEMARKING
QFN–RGTReelof3000PCA9554RGTRPREVIEW
QFN–RGVReelof2500PCA9554RGVRPREVIEW
QSOP–DBQReelof2500PCA9554DBQRPD554
Tubeof40PCA9554DW
SOIC–DWPCA9554
Reelof2000PCA9554DWR
–40°Cto85°C
Tubeof80PCA9554DB
SSOP–DBPD554
Reelof2000PCA9554DBR
Tubeof90PCA9554PW
TSSOP–PWPD554
Reelof2000PCA9554PWR
TVSOP–DGVReelof2000PCA9554DGVRPD554
(1)Packagedrawings,thermaldata,andsymbolizationareavailableatwww.ti.com/packaging.
(2)Forthemostcurrentpackageandorderinginformation,seethePackageOptionAddendumattheendofthisdocument,orseetheTI
websiteatwww.ti.com.
2SubmitDocumentationFeedbackCopyright©2006–2008,TexasInstrumentsIncorporated
ProductFolderLink(s):PCA9554
Not Recommended for New Designs