Datasheet

Hi-Speed USB Host, Device or OTG PHY with ULPI Low Pin Interface
Datasheet
SMSC USB3300 11 Revision 1.1 (01-24-13)
DATASHEET
Chapter 3 Pin Layout
The USB3300 is offered in a 32 pin QFN package (5 x 5 x 0.9mm). The pin definitions and locations
are documented below.
3.1 USB3300 Pin Diagram
The exposed flag of the QFN package must be connected to ground with a via array to the ground
plane. This is the main ground connection for the USB3300.
3.2 Pin Function
Figure 3.1 USB3300 Pin Diagram - Top View
Table 3.1 USB3300 Pin Definitions 32-Pin QFN Package
PIN NAME
DIRECTION,
TYPE
ACTIVE
LEVEL DESCRIPTION
1 GND Ground N/A Ground
2 GND Ground N/A Ground
3 CPEN Output,
CMOS
High External 5 volt supply enable. This pin is used to
enable the external Vbus power supply. The CPEN
pin is low on POR.
GND
GND
CPEN
VBUS
ID
VDD3.3
DM
DP
RESET
EXTVBUS
NXT
DIR
STP
CLKOUT
VDD3.3 VDD1.8
DATA0
DATA7
DATA5
DATA6
DATA2
DATA3
DATA4
DATA1
RBIAS
VDD3.3
XO VDD1.8 VDD3.3 VDDA1.8 XI REG_EN
USB3300
Hi-Speed USB2
ULPI PHY
32 Pin QFN
1
2
3
4
5
6
7
8
USB3300
Hi-Speed USB
ULPI PHY
32 Pin QFN
GND FLAG
9 10 11 12 13 14 15 16
24
23
22
21
20
19
18
17
32 31 30 29 28 27 26 25