 2005 - 2016 Microchip Technology Inc.

DS00002103A-page 5

USB3500

The USB3500 uses Microchip’s advanced proprietary technology to minimize power dissipation, resulting in maximized

battery life in portable applications.

1.1

Applications

The USB3500 is targeted for any application where a hi-speed USB connection is desired.

The USB3500 is well suited for:

• Cell Phones

• MP3 Players

• Scanners

• Printers

• External Hard Drives

• Still and Video Cameras

• Portable Media Players

• Entertainment Devices

1.2

Reference Documents

• Universal Serial Bus Specification, Revision 2.0, April 27, 2000

• USB 2.0 Transceiver Macrocell Interface (UTMI) Specification, Version 1.02, May 27, 2000

• On-The-Go Supplement to the USB 2.0 Specification, Revision 1.0a, June 24, 2003

• UTMI+ Specification, Revision 1.0, February 2, 2004

FIGURE 1-2:

UTMI+ LEVEL 3 SUPPORT

UTMI+ Level 0

USB2.0 Peripherals Only

USB3500

UTMI+ Level 3

USB2.0 Peripheral, host controllers, On-the-

Go devices

(HS, FS, LS, preamble packet)

UTMI+ Level 2

USB2.0 Peripheral, host controllers, On-

the-Go devices

(HS, FS, and LS but no preamble packet)

UTMI+ Level 1

USB2.0 Peripheral, host controllers, and

On-the-Go devices

(HS and FS Only)

USB3280

USB3250