Tutorial: CH341A

Adapts or transmits signals between devices.

CH341A

Tutorial / documentation

Communication

Quick documentation & first test preparation

  1. Identify component CH341A 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.

CH341A

USB to UART / printer port / parallel port / 2-wire / 4-wire, SOIC-28 (SOP-28)

  • USB to UART / printer port / parallel port / 2-wire / 4-wire, SOIC-28 (SOP-28)
  • 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.