USB5744-I/2G

The USB5744 hub is low-power, OEM configurable, USB 3.0 hub feature controller with 4 downstream ports and advanced features for embedded USB applications. The USB5744 is fully compliant with the USB 3.0 Specification and USB 2.0 Link Power Management Addendum. The USB5744 supports 5 Gbps SuperSpeed (SS), 480 Mbps HiSpeed (HS), 12 Mbps Full-Speed (FS), and 1.5 Mbps Low-Speed (LS) USB downstream devices on all enabled downstream ports. The USB5744 supports the legacy USB speeds (HS/FS/LS) through a dedicated USB 2.0 hub feature controller that is the culmination of five generations of Microchip hub feature controller design and experience with proven reliability, interoperability, and device compatibility. The SuperSpeed hub feature controller operates in parallel with the USB 2.0 controller, decoupling the 5 Gbps SS data transfers from bottlenecks due to the slower USB 2.0 traffic. The USB5744 supports both upstream battery charger detection and downstream battery charging. The USB5744 integrated battery charger detection circuitry supports the USB-IF Battery Charging (BC1.2) detection method and most Apple devices. The USB5744 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 with data) Custom profiles loaded via SMBus or OTP

USB 3.0 compliant 5 Gbps, 480 Mbps, 12 Mbps and 1.5 Mbps operation 5 V tolerant USB 2.0 pins 1.32 V tolerant USB 3.0 pins Integrated termination & pull-up/pull-down resistors Supports per port battery charging of most popular battery powered devices USB-IF Battery Charging rev. 1.2 support (DCP, CDP, SDP) Apple® portable product charger emulation Chinese YD/T 1591-2006 charger emulation Chinese YD/T 1591-2009 charger emulation European Union universal mobile charger support Support for Microchip USC100x family of battery charging controllers Supports additional portable devices Smart port controller operation Firmware handling of companion port controllers On-chip microcontroller Manages I/Os, VBUS, and other signals 8 KB RAM, 64 KB ROM 8 KB One Time Programmable (OTP) ROM Includes on-chip charge pump Configuration programming via OTP ROM, SPI ROM, or SMBus