Hi-Speed USB Transceiver with 1.8V-3.3V ULPI Interface - 26MHz Reference Clock
1
A
B
C
D
E
2
3
4
5
TOP VIEW
Figure 3 USB3317 VFBGA Pinout - Top View
Pin Definitions
The following table details the pin definitions for the figure above.
Table 1 USB3317 Pin Description
PIN
BALL
DIRECTION/
TYPE
Input,
Analog
ID
I/O,
Analog
VBUS
Power
VBAT
Power
4
D2
5
D1
6
E1
N/A
N/A
N/A
ACTIVE
LEVEL
N/A
NAME
DESCRIPTION
ID
pin of the USB cable. For non-OTG
applications this pin can be floated. For
an A-Device
ID
is grounded. For a B-
Device
ID
is floated.
VBUS
pin of the USB cable. This pin is
used for the Vbus comparator inputs and
for Vbus pulsing during session request
protocol.
Regulator input. The regulator supply can
be from 5.5V to 3.1V.
3.3V Regulator Output. A 2.2uF (<1 ohm
ESR) bypass capacitor to ground is
required for regulator stability. The
bypass capacitor should be placed as
close as possible to the USB3317.
D- pin of the USB cable.
1
B1
2
C1
3
C2
VDD3.3
I/O,
Analog
I/O,
Analog
N/A
DM
N/A
D+ pin of the USB cable.
DP
SMSC USB3317
5
Revision 1.3 (11-02-07)
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SMSC [ SMSC CORPORATION ]
