STUSB03E USB Transceiver
Low and Full speed USB V2.0 compliant transceiver

STUSB03E Product Page USBs are commonplace on nearly all next generation portable equipment. This serial standard accommodates a higher rate of information exchange with PC peripherals, improving plug-and-play capabilities and allowing devices to be hot-swapped (connected or disconnected without powering down or rebooting the computer). The USB standard reduces the number of wires necessary for data transfer. It requires only four wires: Two for differential data One for ground One for the VBUS which might be used to supply the low power consumption peripheral

ST’s new STUSB03E is a physical (PHY) layer transceiver that enables application-specific ICs (ASICs) and chipsets, with integrated USB controllers to interface with the physical USB bus. The STUSB03E is a stand-alone solution compliant with USB v2.0 requirements and supports low (1.5Mb/s) and full speed (12Mb/s) mode. This device implements sharing mode and VBUS voltage detector features. In sharing mode, the data lines (D+ and D-) can be shared with other serial protocols. The V_BUS voltage detector senses the presence of VBUS voltage on the USB bus. This function is useful where voltage monitoring is required. STUSB03E also implements the D+ pull up resistor for full speed operation. This is a versatile solution saving space and cost when the internal pull-up is active and is in line with previous market solutions when the external one is needed. This resistor is selectable through the R_SEL pin.

STUSB03E typical application diagram