The Microchip USB7214 hub is a low-power, OEM configurable, USB 3.2 Gen 2 hub controller with 3 downstream ports and advanced features for embedded automotive USB applications. The USB7214 is fully compliant with the Universal Serial Bus Revision 3.2 Specification and USB 2.0 Link Power Management Addendum. The USB7214 supports 10 Gbps SuperSpeed+ (SS+), 5 Gbps SuperSpeed (SS), 480 Mbps Hi-Speed (HS), 12 Mbps Full-Speed (FS), and 1.5 Mbps Low-Speed (LS) USB downstream devices on three standard USB 3.2 Gen 2 downstream ports and only legacy speeds (HS/FS/LS) on one standard USB 2.0 downstream port.

The USB7214 is a standard USB 3.2 Gen 2 hub that supports native basic Type-C with integrated CC logic on two downstream ports. The downstream Type-C ports include internal USB 3.2 Gen 2 multiplexers; no external multiplexer is required for Type-C support.

The USB7214 supports the legacy USB speeds (HS/FS/LS) through a dedicated USB 2.0 hub controller that is the culmination of seven generations of Microchip hub feature controller design and experience with proven reliability, interoperability, and device compatibility. The SuperSpeed hub controller operates in parallel with the USB 2.0 controller, decoupling the 10/5 Gbps SS+/SS data transfers from bottlenecks due to the slower USB 2.0 traffic.

The USB7214 enables OEMs to configure their system using “Configuration Straps.” These straps simplify the configuration process assigning default values to USB 3.2 Gen 2 ports and GPIOs. OEMs can disable ports, enable battery charging and define GPIO functions as default assignments on power up removing the need for OTP or external SPI ROM.

The USB7214 supports downstream battery charging. The USB7214 integrated battery charger detection circuitry supports the USB-IF Battery Charging (BC1.2) detection method and most Apple devices. The USB7214 provides the battery charging handshake and supports the following USB-IF BC1.2 charging profiles:

• DCP: Dedicated Charging Port (Power brick with no data)

• CDP: Charging Downstream Port (1.5A with data)

• SDP: Standard Downstream Port (0.5A[USB 2.0]/0.9A[USB 3.2] with data)

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