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

■

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

■

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.

height)

Hi-Speed USB Host or

Device PHY With UTMI+

Interface

USB3450

C to +70

Revision 0.1 (05-11-05)

Datasheet

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