Data Sheet
VL817 (B0)
USB 3.1 Gen 1 Hub Controller
January 18
th
, 2017
Revision 0.70
Preliminary
VL817 USB 3.1 Gen1 Hub Controller
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Revision History
Rev
Date
Note
Initial
0.70
01/18/2017
Preliminary Release.
EC
VL817 USB 3.1 Gen1 Hub Controller
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Contents
Revision History .......................................................................................... 2
Contents .................................................................................................... 3
List of Figures ............................................................................................. 3
Product Features ......................................................................................... 4
VL817 System Overview ............................................................................... 5
USB Battery Charging Behavior ..................................................................... 6
Pinout (VL817-Q7) ....................................................................................... 7
Pin List (VL817-Q7) ..................................................................................... 8
Pin Descriptions (VL817-Q7) ......................................................................... 9
Pinout (VL817-Q5) ..................................................................................... 12
Pin List (VL817-Q5) ................................................................................... 13
Pin Descriptions (VL817-Q5) ....................................................................... 14
Electrical Specification ................................................................................ 17
Timing Requirements for SPI Flash .............................................................. 18
General Reflow Profile Guidelines ................................................................. 20
Package Mechanical Specifications (VL817-Q7) .............................................. 21
Package Mechanical Specifications (VL817-Q5) .............................................. 22
Package Top Side Marking & Ordering Information ......................................... 23
List of Figures
Figure 1 – VL817 Block Diagram ............................................................... 5
Figure 2 – VL817-Q7 Pin Diagram............................................................. 7
Figure 3 – VL817-Q5 Pin Diagram........................................................... 12
Figure 4 – Illustration of SPI Flash Interface Timing – (1) ..................... 19
Figure 5 – Illustration of SPI Flash Interface Timing – (2) ..................... 19
Figure 6 –Reflow .................................................................................... 20
Figure 7 – Mechanical Specification – QFN 76L 9x9x0.85 mm Package .. 21
Figure 8 – Mechanical Specification – QFN 56L 7x7x0.85 mm Package .. 22
Figure 9 –Package Top Side Marking ...................................................... 23
VL817 USB 3.1 Gen1 Hub Controller
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Product Features
VL817
USB 3.1 Gen 1 4/2-Port Hub Controller
USB 3.1 Compliant
– Compliant to Universal Serial Bus 3.1 Specification
– Meets all USB 3.1 ECN through Jan 2017
– Compliant to Universal Serial Bus 2.0 Specification
USB 2.0 Hub Supports MTT
– Supports Simultaneous Operation of Any Combination of SuperSpeed, High-Speed, Full-Speed, and Low-Speed Devices
– Supports USB Power Saving Features such as Link Power Management, Ux States, Selective Suspend, and Function
Suspend
– In-house USB PHY employs advanced CMOS process for low power consumption
Integrated USB Devices
– USB HID Class Device (Optional)
Implemented as a USB 2.0 Virtual Device, Facilitates FW Update or Media Control Buttons
Configurable Behavior – Always Present / Disabled
– USB Billboard Class 1.1 Device (Optional)
Implemented as a USB 2.0 Virtual Device
Configurable Behavior – Expose When Necessary / Always Present / Disabled
Full Sideband Signal Support
– Supports both Individual and Ganged Mode Operation for All Ports
– Supports PWM LED Status Lights
– SPI Interface for Firmware. Firmware Upgradable over USB.
– Management Interface for Specialized Applications
Comprehensive USB Battery Charging Support
– Supports USB Battery Charging Specification v1.2 (SDP, CDP, DCP)
– Support for Vendor Specific Charging Modes eg. Apple 2.4A, Samsung, etc.
– Supports YD/T 1591-2009
– Supports Stand-Alone Charging when System is Suspend, Shut Down, or Disconnected
– Any Combination of DFPs can be Configured to Support USB Battery Charging
Power and Package
– Requires 3.3V and 1.1V Inputs
– 25MHz Xtal
– Integrated Voltage Regulators Generate All Required Voltages from 5V Input
5V to 1.1V Switching DC-DC Regulator
5V to 3.3V LDO Regulator
– QFN 76L green package (9x9x0.85 mm)
– QFN 56L green package (7x7x0.85 mm)
VL817 USB 3.1 Gen1 Hub Controller
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VL817 System Overview
VIA Lab’s VL817 is a modern USB 3.1 Gen 1 Hub Controller, featuring an optimized cost-structure and full compliance with USB
3.1 Gen 1 specification including ECNs and Compliance Testing Updates through Jan 2017. VL817 is offered in both 2-port and
4-port configurations, and features integrated voltage regulators, new lower-power design, and comprehensive USB Charging
support. VL817 supports any combination of SuperSpeed (5Gbps), High Speed (480Mbps), Full Speed (12Mbps), and Low Speed
(1.5Mbps) devices, and the integrated USB 2.0 hub’s Multiple Transaction Translators feature provides increased performance
when multiple Full Speed devices are simultaneously used. The integrated 5V DC-DC switching regulator enables VL817 to be
powered directly from 5V USB VBus, reducing BOM cost while offering high power efficiency.
VL817 features a flexible firmware architecture, providing a framework for custom functions in addition to in-field updates.
Various parameters including Tx equalization setting and GPIO behavior are changeable via firmware, including the optionally
configurable USB Charging Controller for charging various devices such as smartphones and tablets.
VL817-based hub devices work under Windows, Mac OS X, and various Linux kernels without additional drivers. VL817-based
hub devices are also compatible with non-x86 devices and platforms that support USB hub functions such as smart phones,
tablets, and set-top boxes. It is well suited for all USB hub applications such as standalone USB hubs, Notebook/Ultrabook
docking stations/port-replicators, desktop PC front panel, motherboard on-board hub, and USB hub compound devices. VL817
incorporates multiple optional USB 2.0 Virtual Devices including USB Billboard, and USB HID to support Media Control Buttons
such as Play/Pause, Volume Up/Down, etc.
Figure 1 – VL817 Block Diagram
