SN65240PW.

The SN65240PW is a Dual Universal Serial Bus Port Transient Suppressor provides electrical noise transient protection to universal serial bus (USB) low and full-speed ports. The input capacitance of 35pF makes it unsuitable for high-speed USB 2.0 applications. Any cabled I/O can be subjected to electrical noise transients from various sources. These noise transients can cause damage to the USB transceiver and/or the USB ASIC if they are of sufficient magnitude and duration. The ESD performance of the devices is measured at the system level, according to IEC61000-4-2. However, system design impacts the results of these tests. To accomplish a high compliance level requires careful board design and layout techniques.