USB3450

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) Hi-Speed USB Host or Device PHY With UTMI+ Interface Datasheet ORDER NUMBER(S): USB3450-FZG FOR 40 PIN, QFN PACKAGE (GREEN, LEAD-FREE) 80 Arkay Drive Hauppauge, NY 11788 (631) 435-6000 FAX (631) 273-3123 Copyright © 2005 SMSC or its subsidiaries. All rights reserved. Circuit diagrams and other information relati...