USB3450 Datasheet, PDF (1/40 Pages) SMSC Corporation – HI-SPEED USB HOST OR DEVICE PHY WITH UTMI+INTERFACE

USB3450
Hi-Speed USB Host or
Device PHY With UTMI+
Interface
PRODUCT FEATURES
Datasheet
■ USB-IF “Hi-Speed” certified to the Universal Serial
Bus Specification Rev 2.0
■ Interface compliant with the UTMI+ Specification,
Revision 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 external clock input.
■ Internal PLL for 480MHz Hi-Speed USB operation.
■ Supports Hi-Speed USB and legacy USB 1.1 devices
■ 55mA Unconfigured Current (typical) - ideal for bus
powered applications.
■ 83uA suspend current (typical) - ideal for battery
powered applications.
■ Full Commercial operating temperature range from
0°C to +70°C
■ 40 pin QFN package; green, lead-free (6 x 6 x 0.9mm
height)
SMSC USB3450
DATASHEET
Revision 0.1 (05-11-05)