1

USB 2.0 High-Speed/UART Dual SP3T (Dual 3 to 1

Multiplexer)

ISL54216

The Intersil ISL54216 is a single supply dual SP3T

analog switch that operates from a single supply in the

range of 2.7V to 4.6V. It was designed to multiplex

between three different differential data sources,

allowing the multiplexing of USB 2.0 high speed and/or

UART data signals through a common headphone

connector in Personal Media Players and other portable

battery powered devices.

The switch channels have very low ON capacitance and

high bandwidth to pass USB high speed signals

(480Mbps) with minimal edge and phase distortion and

can swing rail-to-rail to pass UART and full-speed USB

signals.

The ISL54216 is available in a tiny 12 Ld 2.2mmx1.4mm

ultra-thin QFN and 12 Ld 3mmx3mm TQFN packages. It

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

Related Literature

• Technical Brief TB363 “Guidelines for Handling and

Processing Moisture Sensitive Surface Mount Devices

(SMDs)”

Features

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

Signaling Capability per USB 2.0 on All Ports

• UART Capability on All Ports

• COM Pins Allow Negative Swings to -2V

• Compatible with Wired-OR Connected GND

Referenced Audio Sources

• All Switches Open Mode

• Power OFF Protection

• COM Pins Overvoltage Tolerant to 5.5V

• Low ON Capacitance @ 240MHz . . . . . . . . . . . . 4pF

• -3dB Frequency . . . . . . . . . . . . . . . . . . . . 800MHz

• Compliant with USB 2.0 Short Circuit Requirements

Without Additional External Components

• Pb-Free (RoHS Compliant)

Applications*(see page 15)

• MP3 and Other Personal Media Players

• Cellular/Mobile Phone

•Readers

Application Block Diagram

ISL54216

USB

TRANSCEIVER

UART

COM -

COM +

C1

GND

1D+

1D-

2D+

2D-

VDD

C0

LOGIC CONTROL

µCONTROLLER

3.3V

3D-

USB

4MΩ

TRANSCEIVER

3D+

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. 2010. All Rights Reserved

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

September 27, 2010

FN7701.0