USB3300-EZK-TR SMSC, USB3300-EZK-TR Datasheet - Page 19

• Manufacturer Part Number: USB3300-EZK-TR
• Description: USB Interface IC USB 2.0 PHY ULPI
• Manufacturer: SMSC
• Type: Hi Speed USB Host Devicer

Specifications of USB3300-EZK-TR

• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Temperature Range: - 40 C to + 85 C
• Operating Supply Voltage: 3.3 V
• Package / Case: QFN-32
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Hi-Speed USB Host, Device or OTG PHY with ULPI Low Pin Interface
Datasheet
Chapter 6 Architecture Overview
SMSC USB3300
6.1
VDD3.3
CLKOUT
DATA[7:0]
STP
NXT
DIR
The USB3300 architecture can be broken down into the following blocks shown in Figure 6.1,
"Simplified USB3300 Architecture" below.
The USB3300 uses the industry standard ULPI digital interface to facilitate communication between
the PHY and Link (device controller). The ULPI interface is designed to reduce the number of pins
required to connect a discrete USB PHY to an ASIC or digital controller. For example, a full UTMI+
Level 3 OTG interface requires 54 signals while a ULPI interface requires only 12 signals.
The ULPI interface is documented completely in the “UTMI+ Low Pin Interface (ULPI)
Specification” document (www.ulpi.org). The following sections highlight the key operating modes
of the USB3300 digital interface.
ULPI Digital
Regulator &
ULPI Digital
Internal
POR
Figure 6.1 Simplified USB3300 Architecture
DATASHEET
USB3300
HS XCVR
XTAL &
FS/LS
XCVR
19
PLL
Resistors
Module
Gen.
Bias
OTG
Revision 1.08 (11-07-07)
VDD3.3
RBIAS
VBUS
DM
DP
ID