PHY Layer ICs
USB Interface
Universal Serial Bus

Agere Systems Inc. {USB 2.0
Full-Speed/Low-Speed Transceiver, USB 2.0 Full-Speed Device Controller,
w/ I2C, JTAG interfaces}
Alcor Micro Corp. {USB
Hub/Keyboard/Mouse/Flash Disk Controller ICs}
Atmel {USB Hub Manufacturer}
Cypress {USB IC Manufacturer, USB
1.0/2/0, USB On-The-Go 'OTG'}
Epson {USB20 Device
Controllers}
Fairchild Semiconductor,
Corp. {Universal Serial Bus Transceiver, USB 2.0 FS Peripherial
Transceiver, Dual Port Hi-Speed USB 2.0, USB Switch Dual SPDT
Multiplexer/Demultiplexer}
Freescale Semiconductor, Inc.
{USB Controller IC Manufacturer}
FTDI Future Technology Devices
International Limited {USB UART-Controller / USB Hub Controller}
Genesyslogic company {USB 2.0
Host Controller, USB 2.0 Flash Drive Controller, USB 2.0 Card Reader
Controller}
initio Corp. {USB 2.0/1394a Bridge
Controller; 400/800Mbit}
Intel {USB Controllers}
Kawasaki LSI {USB Controller IC
Manufacturer}
LSI Corporation {USB Core: Hub, Host,
Controller}
Lucent Technologies {USB to
Parallel-USB Controller-PCI to USB Host Controller IC}
Micrel Semiconductor {USB Integrated
Circuit Manufacturer}
National Semiconductor {USB
Controller IC}
NXP {ULPI Transceivers, USB On-The-Go (OTG) Controllers,
USB Hub Controllers, USB Host Controllers, USB Peripheral controllers,
USB Transceivers}
PLX Technology {USB Device
Controller}
SIPEX {USB Transceiver ICs}
Standard Microsystems Corp. 'SMSC'
{USB2.0 ATA/ATAPI Controller, Floppy Disk Controller, Flash Media
Controller}
STMicroelectronics {USB Controller
ICs}
Tiger Jet Network Inc. {USB interface
chip}
TI {USB IC Manufacturer}
Winbond Electronics Corp. {USB Hub
Controller Manufacturer}
Zilog {USB Controller ICs}
IC Manufacturers