PS8740 – USB Type-C Redriving Switch for USB Host / DisplayPort Source

Please refer to our updated product, the PS8743

Host-Side USB Type-C Port Configuration Switch for USB / DisplayPort Alt Mode, with Integrated Redriver

The PS8740 addresses high-speed signal switching requirements for implementation of a USB Type-C connector on a USB host device that support the VESA DisplayPort Alt Mode Standard.

USB C and other diagrams 20140920


  • Smartphones and Tablets
  • Notebooks and Desktop Personal Computers
  • Hub or Dock Devices


  • Flexible USB Type-C switching supports all signaling combinations specified in USB Type-C and VESA DisplayPort Alt Mode Standards
  • Supports USB 3.1 Gen 1 data rate of 5Gbps, and DisplayPort data rates up to 5.4Gbps (HBR2)
  • Input equalizers on all inputs to overcome high speed signal loss in PCB and external cable
  • Active drivers on all outputs to assure reliable signal integrity
  • Automatic output driver adjustment for DisplayPort path utilizing field-proven AUX interception during link training (patented by Parade Technologies)
  • Switching modes are pin controllable through GPIO or I2C control
  • Ultra low standby power
  • Supports auto power saving for DisplayPort and USB
  • 4x6mm 40-pin QFN Halogen free RoHS package
  • Device power supply options:
    • PS8740A, dual supply:  3.3V and (1.2V or 1.35V)
    • PS8740B, single supply:  3.3V
  • ESD:  Human Body Mode at 8kV