CMOS switch operates with Hi-Speed USB
Toshiba Electronics
TC7USB221 switch
Toshiba Electronics Europe (TEE) has introduced a miniature, low-power CMOS switch IC for use in USB 2.0 (Hi-Speed USB) applications.
The TC7USB221 is a USB 2.0 dual single pole double throw (SPDT) bus switch with low ON resistance and low pin capacitance, making it suitable for Hi-Speed USB operation with data rates up to 480Mbps.
A typical application for the IC would be a multiplexer/demultiplexer function between two USB controllers.
The switch operates within a voltage range of 2.3V and 3.6V, has a typical ON resistance of 6.5ohm and a low typical switch on capacitance of 7pF.
This results in a typical 3dB bandwidth of 720MHz and 820MHz for the TSSOP and WLCSP package, respectively.
A maximum quiescent current of 2uA (at 3.6V) helps designers to reduce system power consumption.
Switching between different ports is achieved via a select pin, while an output enable (OE) pin can be used to isolate a USB controller and devices.
Designed to minimise board space, the TC7USB221 is available in two package options.
The miniature WCSP10 package measures 1.6mm x 1.2mm x 0.67mm, while the TSSOP14 alternative has dimensions of 4.4mm x 5.4mm x 1.2mm.
OE and I/O pins are equipped with power-down protection.
In addition, every pin is equipped with ESD protection according to machine model and human body model of at least 200V and 2,000V, respectively.
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