USB3290 datasheet(11/43 Pages) SMSC

Part #	USB3290

Description	Small Footprint Hi-Speed USB 2.0 Device PHY with UTMI Interface

PDF	43 Pages

Scroll/Zoom	100%

Manufacturer	SMSC [SMSC Corporation]

Direct Link	http://www.smsc.com

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Small Footprint Hi-Speed USB 2.0 Device PHY with UTMI Interface

Datasheet

SMSC USB3290

Revision 1.2 (10-27-06)

DATASHEET

Table 4.5 Power and Ground Signals

NAME

DIRECTION

ACTIVE

LEVEL

DESCRIPTION

VDD3.3

(V33)

N/A

3.3V Supply.

Provides power for USB 2.0 Transceiver, UTMI+

Digital, Digital I/O, and Regulators.

REG_EN

(REN)

Input

High

On-Chip 1.8V regulator enable. Connect to ground to disable on

chip VDDA1.8V and VDD1.8V regulators. When regulators are

disabled, external 1.8V must be supplied to VDDA1.8 and

VDD1.8 pins.

VDD1.8

(V18)

N/A

1.8V Digital Supply.

Supplied by On-Chip Regulator when

REG_EN is active. Low ESR 4.7uF minimum capacitor

requirement when using internal regulators.

VSS

(GND)

N/A

Common Ground.

VDDA1.8

(V18A)

N/A

1.8V Analog Supply.

Supplied by On-Chip Regulator when

REG_EN is active. Low ESR 4.7uF minimum capacitor

requirement when using internal regulators.

USB3290 Datasheet(PDF) 11 Page - SMSC Corporation

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