Tutorial: CH334F / CH334R

Adapts or transmits signals between devices.

CH334F / CH334R

Tutorial / documentation

Communication

Quick documentation & first test preparation

  1. Identify component CH334F and its package.
  2. Identify the protocol, logic levels and each pin’s function.
  3. Check required termination and pull-up/pull-down resistors.
  4. Consult the application circuit in the linked documentation before testing.

CH334F

USB HUB controller, QFN-24

  • USB HUB controller, QFN-24
  • Identify the protocol, logic levels and each pin’s function.
  • Check required termination and pull-up/pull-down resistors.
  • The manufacturer’s pinout and absolute limits take precedence over this page.
Technical documentation

CH334R

USB HUB controller, QSOP-16

  • USB HUB controller, QSOP-16
  • Identify the protocol, logic levels and each pin’s function.
  • Check required termination and pull-up/pull-down resistors.
  • The manufacturer’s pinout and absolute limits take precedence over this page.
Technical documentation

Inputs and outputs must match the function described in the selected reference’s documentation.