Datasheet

Data Output
by Transmitter
SCL From
Master
Start
Condition
S
1 2 8 9
Data Output
by Receiver
Clock Pulse for
Acknowledgment
NACK
ACK
PCA9554A
SCPS127D–SEPTEMBER2006–REVISEDAUGUST2008........................................................................................................................................... www.ti.com
Figure3.AcknowledgmentontheI
2
CBus
InterfaceDefinition
BIT
BYTE
7(MSB)6543210(LSB)
I
2
CslaveaddressLHHHA2A1A0R/W
PxI/OdatabusP7P6P5P4P3P2P1P0
6SubmitDocumentationFeedbackCopyright©2006–2008,TexasInstrumentsIncorporated
ProductFolderLink(s):PCA9554A
Not Recommended for New Designs