DATASHEET
ISL54221 FN6820
Rev 0.00
December 16, 2008 High-Speed USB 2.0 (480Mbps) Multiplexer
The Intersil ISL54221 is a single supply dual 2:1 multiplexer
that can operate from a single 2.7V to 5.5V 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. Features The 6.7пЃ—пЂ 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. They have high bandwidth and low capacitance
to pass USB high-speed data signals with minimal distortion. Power OFF Protection High-Speed (480Mbps) and Full-Speed (12Mbps)
Signaling Capability per USB 2.0 1.8V Logic Compatible (2.7V to +3.6V supply) Enable Pin to Open all Switches D-/D+ Pins Overvoltage Tolerant to 5.5V -3dB Frequency 742MHz Low ON Capacitance 7.4pF The part can be used in Personal Media Players and other
portable battery powered devices that need to route USB
high-speed signals or full-speed signals to different
transceiver sections of the device while connected to a single
USB host (computer). Low ON-Resistance 6.7пЃ— Single Supply Operation (VDD) . 2.7V to 5.5V Available in ВµTQFN Package Pb-Free (RoHS Compliant) The digital logic inputs are 1.8V logic compatible when
operated with a 2.7V to 3.6V supply. The ISL54221 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. Compliant with USB 2.0 Short Circuit and Overvoltage …