USB333X datasheet(9/85 Pages) MICROCHIP

9 / 85 page

 2009 - 2015 Microchip Technology Inc.

DS00001880A-page 9

USB333x

2.2

Ball Definitions

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

FIGURE 2-3:

USB3333 BALL LOCATIONS - TOP VIEW

TABLE 2-1:

USB3331, USB3336, AND USB3338 PIN DESCRIPTION

Ball

Name

Direction/

Type

Active

Level

Description

Input,

Analog

N/A

For device applications the ID pin is connected to

VDD33

. For Host applications ID is grounded. For

OTG applications the ID pin is connected to the USB

connector.

VBUS

I/O,

Analog

N/A

This pin is used for the VBUS comparator inputs and

for VBUS pulsing during session request protocol. An

external resistor, RVBUS, is required between this pin

and the USB connector.

VBAT

Power

N/A

Regulator input. The regulator supply can be from

5.5V to 3.0V.

VDD33

Power

N/A

3.3V Regulator Output. A 1.0uF (<1 ohm ESR) bypass

capacitor to ground is required for regulator stability.

The bypass capacitor should be placed as close as

possible to the USB333x.

I/O,

Analog

N/A

D- pin of the USB cable.

I/O,

Analog

N/A

D+ pin of the USB cable.

SPK_R

I/O,

Analog

N/A

USB switch in/out for DP signals.

SPK_L

I/O,

Analog

N/A

USB switch in/out for DM signals.

TOP VIEW

VDD18

RESETB

VBAT

VBUS

REF[0]

DATA[7]

VDD33

DATA[4]

DATA[6]

DATA[5]

CLKOUT

DATA[3]

DATA[2]

DATA[1]

DATA[0]

NXT

DIR

STP

VDDIO

REFCLK

RBIAS

GND

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