USB3450
Hi-Speed USB Host or Device PHY With UTMI+ Interface
Highlights
• USB-IF “Hi-Speed” certified to the Universal Serial Bus Specification Rev.
2.
0
• Interface compliant with the UTMI+ Specification, Rev.
1.
0
• Functional as a host or device PHY
• Supports HS, FS, and LS data rates
• Supports FS pre-amble for FS hubs with a LS device attached (UTMI+ Level 3)
• Supports HS SOF and LS keep alive pulse
• Low Latency Hi-Speed Receiver (43 Hi-Speed clocks Max)
• Internal 1.
8 volt
regulators allow operation from a single 3.
3 volt supply
• Internal short circuit protection of DP and DM lines to VBUS or ground
• Integrated 24MHz Crystal Oscillator supports either crystal operation or 24MHz ext...