The convenience of USB ports is making them a popular choice for automotive equipment such as car navigation systems. Epson's USB hub controllers for automotive applications meet the rigorous quality required by the automotive industry and support stable communications even with long USB cables. The chip has one upstream port and four downstream ports (2 high-speed ports and 2 full-speed ports). The upstream port is locked in USB full-speed mode and can be used as a USB full-speed hub (USB high-speed non-supported hub). It can also be locked into USB full-speed even if the destination host supports USB high-speed, which is effective in improving EMI/EMC performance and reducing power consumption. The device operates from LVDD: 1.8 V (internal) HVDD: 3.3 V (USB unit).
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