USB3300 datasheet(7/53 Pages) MICROCHIP

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 2014-2015 Microchip Technology Inc.

DS00001783B-page 7

USB3300

3.0

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

Name

Direction,

Type

Active

Level

Description

GND

Ground

N/A

Ground

GND

Ground

N/A

Ground

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.

VBUS

I/O,

Analog

N/A

VBUS pin of the USB cable. The USB3300 uses this

pin for the Vbus comparator inputs and for Vbus

pulsing during session request protocol.

Input,

Analog

N/A

ID pin of the USB cable. For non-OTG applications

this pin can be floated. For an A-Device ID = 0. For a

B-Device ID = 1.

GND

CPEN

VBUS

VDD3.3

DATA0

DATA7

DATA5

DATA6

DATA2

DATA3

DATA4

DATA1

USB3300

Hi-Speed USB2

ULPI PHY

32 Pin QFN

USB3300

Hi-Speed USB

ULPI PHY

32 Pin QFN

GND FLAG

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