USB3450 Standard Microsystems Corporation, USB3450 Datasheet
USB3450
Manufacturer Part Number
USB3450
Description
Hi-speed USB HOST OR Device PHY WITH Utmi+interface
Manufacturer
Standard Microsystems Corporation
Datasheet
1.USB3450.pdf
(40 pages)
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PRODUCT FEATURES
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SMSC USB3450
USB-IF “Hi-Speed” certified to the Universal Serial
Interface compliant with the UTMI+ Specification,
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
Supports HS SOF and LS keep alive pulse.
Low Latency Hi-Speed Receiver (43 Hi-Speed clocks
Internal 1.8 volt regulators allow operation from a
Internal short circuit protection of DP and DM lines to
Bus Specification Rev 2.0
Revision 1.0.
attached (UTMI+ Level 3)
Max)
single 3.3 volt supply
VBUS or ground.
DATASHEET
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Integrated 24MHz Crystal Oscillator supports either
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
83uA suspend current (typical) - ideal for battery
Full Commercial operating temperature range from
40 pin QFN package; green, lead-free (6 x 6 x 0.9mm
crystal operation or 24MHz external clock input.
powered applications.
powered applications.
0
height)
°
Hi-Speed USB Host or
Device PHY With UTMI+
Interface
USB3450
C to +70
°
C
Revision 0.1 (05-11-05)
Datasheet
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