The Microchip USB24915P  is a USB2.0 Hi-Speed Hub with unique Smart Hub features targeted to automotive consumer ports and head unit applications. The USB24915P is compliant with the USB 2.0 Specification and has passed AEC-Q100, Grade 2 testing.  This highly integrated chip optimizes board area and reduces overall system costs, with the incorporation of  leadership functionality, including;  Multi-Host Endpoint Reflector, battery charging support for industry profiles, power delivery support (USB PD 3.0), security, LED lighting, and an embedded 32 bit micro-controller for the implementation of  USB IO bridging and USB Power Delivery.  The multiple downstream USB ports support USB2.0 Low Speed/Full Speed/Hi-Speed with a single USB2.0 Hi-Speed upstream port for host connection.

The Multi-Host Endpoint Reflector employs patented technology such that USB data is 'mirrored" between two USB hosts (Multi-Host) in order to execute USB transactions. This capability is fundamental in delivering architectures for smart phones that require host / device swapping in order to set-up an automotive session, including graphic user interface, from the mobile device to the head unit display. Standard USB drivers, which are  native to the operating system, including the CDC/NCM class driver, are utilized to execute device operation. No custom drivers are required.  The Multi-Host Endpoint Reflector is considered a USB controller that is integrated in conjunction with a USB 2.0 Hi-Speed hub and USB2.0 dual role function physical interfaces. 

Contact your Microchip local sales support for information on support documents, demonstration application boards, configuration software, datasheet and application notes. 

• 1 Upstream port for USB Host connection
• 4 downstream ports; two Type C Power Delivery ports and two Type A ports
• Patented Multi-Host Endpoint Reflector
• Device features to enable smart phone automotive sessions with head unit display
• Architected for USB Power Delivery(PD) 3.0 support with a 32 bit, embedded microcontroller in the hub executing  PD stack and system policy manager. SPI Flash provides flexibility for specification revisions and evolving system needs.
• 32 bit, embedded microcontroller executes PD stack, thermal response, and power balancing between ports
• Integrated USB Host for in-field firmware upgrades from down-facing port
• USB Battery Charging, revision 1.2, Apple, and China profiles
• USB to I2C/I2S, SPI, UART, and GPIO
• Security features: Secure BootRom, firmware hash/challenge, and authentication
• Enhanced OEM configuration options available through OTP configuration via SMBus or USB
• I2S for audio support; Asynchronous In, Adaptive Out, 48KHz, two channel (16 bits/channel)
• Flexible I2S capabilities via firmware  update
• MultiTRAK Dedicated transaction translator per port
• PortMap Configurable port mapping and disable sequencing
• PortSwap Configurable differential intra-pair signal swapping
• PHYBoost Configurable USB transceiver drive strength for signal integrity
• VariSense programmable USB receiver sensitivity
• USB Link Power Management (LPM) support
• Vendor Specific Messaging (VSM) support
• 5V single supply with integrated 5V to 3.3V regulator
• 72 pin (10x10mm) VQFN
• Target Applications: Media hubs, Infotainment Head Units, After-Market GPS
• AEC-Q100, Grade 2 (-40 to +105C)