Datasheet

USB 2.0 Hi-Speed Hub Controller
Datasheet
Revision 2.3 (06-11-13) 58 SMSC USB251xB/xBi
DATASHEET
Appendix A (Acronyms)
I
2
C
®
: Inter-Integrated Circuit
1
OCS: Over-Current Sense
PCB: Printed Circuit Board
PHY: Physical Layer
PLL: Phase-Locked Loop
QFN: Quad Flat No Leads
RoHS: Restriction of Hazardous Substances Directive
SCL: Serial Clock
SIE: Serial Interface Engine
SMBus: System Management Bus
TT: Transaction Translator
1.I
2
C is a registered trademark of Philips Corporation.