© 2007 Semiconductor Components Industries, LLC.

Publication Order Number:

October-2017, Rev. 2

FSUSB42/D

FSUSB42

— Low-Power, Two-Port, High-Speed,

USB2.0 (480Mbps) UART Switch

Features

Up to 5.25 V w ithout External Components

Applications

Description

The FSUSB42 is a bi-directional, low -pow er, tw o-port,

high-speed, USB2.0 sw itch. Configured as a double-

pole, double-throw sw itch (DPDT) sw itch, it is optimized

for sw itching betw een any combination of high-speed

(480 Mbps) or Full-Speed (12 Mbps) sources.

The FSUSB42 is compatible w ith the requirements of

USB2.0 and features an extremely low on capacitance

(720 MHz) exceeds the bandw idth needed to pass the

third harmonic, resulting in signals w ith minimum edge

and

phase

distortion.

Superior

channel-to-channel

crosstalk also minimizes interference.

The FSUSB42 contains special circuitry on the sw itch

w ithstand an over-voltage condition. This device is

designed to minimize current consumption even w hen

the control voltage applied to the SEL pin is low er than

valuable to ultra-portable applications, such as cell

phones, allow ing for direct interface w ith the general-

purpose

I/Os

of

the

baseband

processor.

Other

applications include sw itching and connector sharing in

portable cell phones, PDAs, digital cameras, printers,

and notebook computers.

Ordering Information

Part Number Top Mark

Operating Temperature

Range

Package

FSUSB42UMX

HE

-40 to +85°C

10-Lead, Quad, Ultrathin Molded Leadless Package

(UMLP), 1.4 x 1.8 mm

FSUSB42MUX

FSUSB42

-40 to +85°C

10-Lead, Molded Small-Outline Package (MSOP)

JEDEC MO-187, 3.0 mm Wide

HSD1+

HSD2+

HSD1-

HSD2-

D-

D+

Control

Sel

/OE

Figure 1. Analog Sym bol