Hi-Speed Universal Serial Bus PCI Host Controller - Application: PC motherboard, notebook, PCI host add-on card, STB, Web appliance ; Bus interface: USB at HS (480 Mbit/s), FS (12 Mbit/s) and LS (1.5 Mbit/s) data rates, direct I/F to any 32-bit, 33 MHz I/F ; Downstream ports: 4 ; Features: integrated two Original USB-OHCI and one Hi-Speed USB-EHCI host controllers ; Operating/supply voltage (MAX.-Vcc,Vp,VDD): core 1.8 V, dual power supply 3.6 V V_aux, V_cc V; Other features: EHCI 1.0 spec