Hi-Speed USB Transceiver with 1.8V-3.3V ULPI Interface - 26MHz Reference Clock

SMSC USB3317

5

Revision 1.3 (11-02-07)

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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

NAME

DIRECTION/

TYPE

ACTIVE

LEVEL

DESCRIPTION

1

B1

ID

Input,

Analog

N/A

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.

2

C1

VBUS

I/O,

Analog

N/A

VBUS pin of the USB cable. This pin is

used for the Vbus comparator inputs and

for Vbus pulsing during session request

protocol.

3

C2

VBAT

Power

N/A

Regulator input. The regulator supply can

be from 5.5V to 3.1V.

4

D2

VDD3.3

Power

N/A

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.

5

D1

DM

I/O,

Analog

N/A

D- pin of the USB cable.

6

E1

DP

I/O,

Analog

N/A

D+ pin of the USB cable.

A

E

D

C

B

15

4

3

2

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