USB3450 Standard Microsystems Corporation, USB3450 Datasheet - Page 7

• Manufacturer Part Number: USB3450
• Description: Hi-speed USB HOST OR Device PHY WITH Utmi+interface
• Manufacturer: Standard Microsystems Corporation

Hi-Speed USB Host or Device PHY With UTMI+ Interface
Datasheet
Chapter 1 General Description
SMSC USB3450
SOC/FPGA/ASIC
Including Device Controller
USB App.
Hi-Speed
The USB3450 is a stand-alone Hi-Speed USB Physical Layer Transceiver (PHY). The USB3450 uses
a UTMI+ interface to connect to an SOC or ASIC or FPGA. SMSC’s advanced proprietary technology
minimizes power dissipation, resulting in maximum battery life for portable applications. The USB3450
is a flexible solution for adding USB to new designs without integrating the analog PHY block.
The USB3450 provides a fully compliant Hi-Speed interface, and supports Hi-Speed (HS), Full-Speed
(FS), and Low-Speed (LS) USB. The USB3450 supports all levels of the UTMI+ specification as shown
in
Figure
1.2.
Hi-Speed Peripheral, host controllers, On-
Hi-Speed Peripheral, host controllers, On-
(HS, FS, and LS but no preamble packet)
Figure 1.1 Basic UTMI+ USB Device Block Diagram
Hi-Speed Peripheral, host controllers,
UTMI+
Link
(HS, FS, LS, preamble packet)
Hi-Speed Peripherals Only
and On-the-Go devices
Figure 1.2 UTMI+ Level 3 Support
(HS and FS Only)
the-Go devices
the-Go devices
UTMI+ Level 3
UTMI+ Level 2
UTMI+ Level 1
UTMI+ Level 0
Interface
UTMI+
DATASHEET
Digital
UTMI+
Logic
7
USB3450
Analog
Speed
Hi-
V
DM
DP
ID
BUS
USB3450
USB3500
Revision 0.1 (05-11-05)
USB3280
USB3250
Connector
(Standard
or Mini)
USB