FE4.1 — USB 2.0 Dual-Port Hub Controller

FE4.1 is a USB 2.0 High-Speed Dual-Port Hub Controller with special features to support USB dongle applications.

針對 USB Dongles 優化

Specifically designed to support USB dongle applications, which are compound devices with two embedded devices or one embedded device and one open downstream port.

品質保證

Quality is guaranteed by Design-For-Testing with comprehensive scan chains and Built-In-Self-Test modes which could exercise all high-, full-, and low-speed Analog Front End (AFE) components at the packaging and testing stages.

低功耗

To fit into a tight and closed USB dongle application environment, FE4.1 features tiny footprint and extreme low power consumption.

產品規格

封裝 USB 埠 尺寸 耐溫規格 Transaction Translator (TT)
QFN-20 2 4x4 mm 商業用規格 Single

商業用規格: 0°C - 70°C

產品特色

  • Fully compliant with Universal Serial Bus Specification Revision 2.0 (USB 2.0)
    • Upstream Facing Port supports High-Speed (480MHz) and Full-Speed (12MHz) modes
    • 2 Downstream Facing Ports support High-Speed (480MHz), Full-Speed (12MHz), and Low-Speed (1.5MHz) modes
  • Integrated USB 2.0 Transceivers
  • Integrated upstream 1.5KΩ pull-up, downstream 15KΩ pull-down, and serial resistors
  • Integrated 5V to 3.3V and 1.8V regulators
  • Integrated Power-On-Reset circuit with power failure detection circuit
  • Integrated 12MHz Oscillator with feedback resistor, and crystal load capacitor
  • Integrated 12MHz-to-480MHz Phase Lock Loop (PLL)
  • Single Transaction Translators (STT)
    • One TT for all downstream ports
    • The TT could handle 64 periodic Start-Split transactions, 32 periodic Complete-Split transactions, and 6 none-periodic transactions
  • Supports Ganged Power Control mode
  • Provides two clock output: one 12MHz and one 24MHz; and one Remote-Wake-Up Alert input