1

®

FN6836.1

ISL54223

High-Speed USB 2.0 (480Mbps)

Multiplexer

The Intersil ISL54223 is a single supply dual 2:1 multiplexer

that can operate from a single 1.8V to 3.3V supply. It contains

two SPDT (Single Pole/Double Throw) switches configured as

a DPDT. The part was designed for switching or routing of

USB High-Speed signals and/or USB Full-speed signals in

portable battery powered products.

The 5.5

Ω switches can swing rail-to-rail and were specifically

designed to pass USB full speed data signals that range from

0V to 3.3V and USB high speed data signals that range from

0V to 400mV with a single supply as low as 1.8V. They have

high bandwidth and low capacitance to pass USB high speed

data signals with minimal distortion.

The part can be used in Personal Media Players and other

portable battery powered devices that need to route USB

high-speed signals and/or full-speed signals to different

transceiver sections of the device while connected to a single

USB host (computer).

The digital logic inputs are 1.8V logic compatible when

operated with a 1.8V to 3.3V supply. The ISL54223 has an

output enable pin to open all the switches. It can be used to

facilitate proper bus disconnect and connection when

switching between the USB sources.

The ISL54223 is available in a 10 Ld 2.1mmx1.6mm µTQFN

package. It operates over a temperature range of -40 to +85°C.

Features

• High-Speed (480Mbps) and Full-Speed (12Mbps)

Signaling Capability per USB 2.0

• 1.8V Logic Compatible

• Enable Pin to Open all Switches

• Power OFF Protection

• D-/D+ Pins Overvoltage Tolerant to 5.5V

• -3dB Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . 782MHz

• Low ON Capacitance. . . . . . . . . . . . . . . . . . . . . . . . 6.5pF

• Low ON-Resistance. . . . . . . . . . . . . . . . . . . . . . . . . . 5.5

Ω

• Available in µTQFN Package

• Pb-Free (RoHS Compliant)

• Compliant with USB 2.0 Short Circuit and Overvoltage

Requirements Without Additional External Components

Applications

• MP3 and other Personal Media Players

• Cellular/Mobile Phones

•PDA’s

• Digital Cameras and Camcorders

• USB Switching

Application Block Diagram

PORTABLE MEDIA DEVICE

ISL54223

USB

TRANSCEIVER

HIGH-SPEED

D-

D+

SEL

GND

HSD1-

HSD1+

HSD2-

HSD2+

OE

LOGIC CIRCUITRY

µCONTROLLER

USB

TRANSCEIVER

FULL-SPEED

VBUS

D-

D+

GND

OR

FULL-SPEED

HIGH_SPEED

OR

#1

#2

Data Sheet

May 27, 2009

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774

Copyright Intersil Americas Inc. 2009. All Rights Reserved

All other trademarks mentioned are the property of their respective owners.

NOT

RECO

MME

NDED

FOR

NEW

DESI

GNS

RECO

MME

NDED

REPL

ACEM

ENT

PART

ISL54

222A