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Hub Controller

AU6256 - USB 2.0 HUB Controller

AU6256 is a fully compliant with the USB 2.0 hub specification and is designed to work with USB host as a high-speed hub. Its built-in TT (Transaction Translator) allows system to benefit combinational performance under the unbalanced traffic condition.

AU6256-JDL supports four USB downstream ports and one upstream port in 48-LQFP package. Each downstream port could be a device of high-speed, full-speed or low-speed traffic, while the upstream port supports both high-speed and full-speed traffic. For each downstream port it has individual power switch control built-in as over-current sensing control. Alcor also offers a gang power version (AU6256-JBL), with a slightly different pin-out.

Main Features:

  • Fully compliant with USB Hub Specification - Version 2.0 and is also backward compatible with USB Hub Specification - Version 1.1.
  • Single chip USB 2.0 hub controller.
  • Supports four bus-powered / self-powered downstream ports.
  • Supports automatic switching between bus- and self-powered modes.
  • Cost effective design using one transaction translator for all downstream ports.
  • Two-color LED controls available for each downstream port to indicate the status of each device port.
  • Extra low power consumption.
  • Internal USB bus power recommended pull down resistors for all data lines.
  • Built-in USB 2.0 transceiver.
  • Supports individual mode of power management.
  • Built-in power switch control for over current sensing control.
  • Built-in 5V to 3.3V and 3.3V to1.8V regulator for core logic.
  • Embedded in PLL (Phase Lock Loop) circuit for 12MHz operation precision.
  • Supports external EEPROM interface for customized PID and VID.
  • Port status configurable through EEPROM input pin:
    • 2 ports. Both removable. (EEENABLE: 0, E2PSDA: 0, E2PSCL: 0)
    • 2 ports. Both non-removable. (EEENABLE: 0, E2PSDA: 0, E2PSCL: 1)
    • 3 ports. Port 1: non-removable. Port 2, 3: removable. (EEENABLE: 0, E2PSDA: 1, E2PSCL: 0)
    • Normal mode. (EEENABLE: 0, E2PSDA: 1, E2PSCL: 1)
  • Available in 48-LQFP package.

Application Diagram:

For More Information , Please Contact Us
Evaluation Kit Information

AU6256 evaluation kit is designed for customers to test and check the features on demonstration PCB, and also available for future development and design reference purpose.

Content
  • Sample Chips x 10
  • Print Datasheet x 1
  • Main Sample Print Circuit Board x 1
  • Software CD for Development Usage x 1
Purchase
  • Price:
    USD250 / each (per engineering evaluaction kit)
  • Payment Terms:
    Bank Wire Transfer (T/T) in Advance or Credit Card (Contact Alcor sales for this)
  • Shipping is FOB Taiwan, preferred shipping method is to bill customer FedEx or UPS account.
  • Bank Information:
    Alcor Micro, Corp.
    Bank Name: ChinaTrust Commercial Bank, Tun Nan Branch
    Bank Add: No.68, Sec. 2, TunHua S. RD. Taipei, Taiwan, R.O.C.
    Bank Tel: +886-2-23253616
    Swift Code: CTCBTWTP
    Account: 163-131-009545
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