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WSAL20265 – PL2303 USB UART Board V2/en

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Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The PL2303 USB-to-UART (TTL) communication module (V2) converts USB to a serial interface and supports 1.8 V, 2.5 V, 3.3 V and 5 V logic levels via jumper settings. It uses the newer PL2303GS chip, provides three status LEDs (TXD, RXD, PWR), and is compatible with Windows XP/7/8/10/11.

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Technical overview

  • Chipset: PL2303GS (newer revision of PL2303).
  • Interfaces: USB on the host side, UART (TTL) on the device side.
  • USB supply voltage: 5 V.
  • Selectable UART logic levels: 1.8 V / 2.5 V / 3.3 V / 5 V via jumpers.
  • VCCIO jumper modes: 5 V external power; 3.3 V external power; without jumper cap, powered by an external supply.
  • Board dimensions: 16.51 mm × 48.26 mm.
  • Three onboard LEDs: TXD, RXD, PWR.
  • Supported operating systems: Windows XP, 7, 8, 10, 11.
  • Available resources: schematic, drivers (Windows/Linux), Serial Debugging Assistant, PuTTY, PL2303 driver program.
  • Available datasheets: PL2303, PL2303TA, PL2303GS.

Notes and version constraints

  • No commands are specified in the source document – no exact commands derived.
  • Exact jumper positions for each mode are not detailed; consult the original schematic before changing jumpers.
  • Linux drivers must be installed manually; the document only lists “PL2303G Linux driver” without installation instructions.
  • No warranty, certification, or pricing information is present – no assumptions made.
  • Version-sensitive steps (e.g., exact jumper configuration) require human confirmation against the current schematic.

Source and revision record

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