Microchip’s USB5734 Smart hub is a 4 port, SuperSpeed (SS)/Hi-Speed (HS), low power, configurable and fully compliant with the USB 3.1 Gen 1 specification. The USB5734 also supports Full Speed (FS) and Low Speed (LS) USB signaling, offering complete coverage of all defined USB operating speeds. The new SuperSpeed hubs operate in parallel with the USB 2.0 controller, so 5 Gbps SuperSpeed data transfers are not affected by slower USB 2.0 traffic.

The USB5734 is also a Smart Hub which is defined as a USB hub that integrates system levels functions typically associated with a separate MCU or processor. Microchip’s USB5734 Smart Hub enables communication to other peripherals in addition to USB. This I/O bridging capability allows the host to seamlessly interface to peripherals via I2C, SPI, GPIOs or a UART over USB. Microchip’s Smart hubs also enable a downstream device to take control of the host system by swapping roles and becoming the host port. The Smart hub can also switch between two different hosts if required. This role changing technology is called FlexConnect and can be initiated through hardware or software commands.

Smart hubs also supports custom configurations of external ports and GPIO pins. ProTouch2, Microchip’s proprietary software utility, can be used to program On-chip One Time Programmable (OTP) ROM which stores required register settings to ensure the desired start up configuration at power on. All LED, GPIOs and port control signal pins are under firmware control, allowing for maximum operational flexibility. However, for even more simplicity, the USB5734 can be configured through a series of external low-cost resistor bootstraps. A handful of bootstap pins are available on the USB5734 to enable standard configurations for GPIOs and downstream ports. No OTP programming required..

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