Hi-Speed USB Transceiver with 1.8V-3.3V ULPI Interface - 13MHz Reference Clock

Revision 1.3 (11-02-07)

4

SMSC USB3318

PRODUCT PREVIEW

USB3318 Pin Locations and Descriptions

Package Diagram with Pin Locations

The pinout below is viewed from the top of the package.

Figure 2 USB3318 QFN Pinout - Top View

Pin Definitions

The following table details the pin definitions for the figure above.

Table 1 USB3318 Pin Description

PIN

NAME

DIRECTION/

TYPE

ACTIVE

LEVEL

DESCRIPTION

1

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

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.

VBUS

ID

VDD3.3

DM

DP

NXT

DATA0

DATA2

DATA3

DATA1

VBAT

1

2

3

4

5

6

18

17

16

15

14

13

24Pin QFN

4x4mm

VDDIO