component

PL2303GC

Public Made by Adom

by adom

Prolific Tech USB Converters, SSOP-28. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

Schematic Symbol

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PCB Footprint

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Datasheet

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Contents

README

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PL2303GC

Prolific Tech · USB Converters · SSOP-28

PL2303GC from Prolific Tech, in a SSOP-28. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 TXD output Serial Port Transmitted Data Output; configurable as GPIO (GPA0).
2 DTR_N output Serial Port Data Terminal Ready Control Output; configurable as GPIO (GPA4).
3 RTS_N output Serial Port Request To Send Control Output; configurable as GPIO (GPA2).
4 VDD_IO power_in I/O signal power supply input, 1.8V to 5.0V; voltage must not exceed VIN.
5 RXD input Serial Port Received Data Input; configurable as GPIO (GPA1).
6 RI_N input Serial Port Ring Indicator (Remote Wakeup) Control Input; factory default wakeup source; configurable as GPIO (GPA7).
7 NC unconnected No internal connection; leave floating.
8 GPB7 output Configurable GPIO Pin with factory default TXEN output for RS485/RS422 transceiver transmit enable control.
9 DSR_N input Serial Port Data Set Ready Control Input; configurable as GPIO (GPA5).
10 DCD_N input Serial Port Data Carrier Detect Control Input; configurable as GPIO (GPA6).
11 CTS_N input Serial Port Clear To Send Control Input; configurable as GPIO (GPA3).
12 SUSP_N output Active low Shutdown control pin for powering down external RS232 transceiver; also GPIO GPB6 configurable.
13 GPB3 bidirectional Configurable GPIO Pin; supports USB_CFG output or I2C SCL interface functions.
14 GPB2 bidirectional Configurable GPIO Pin; supports VBUS_DET input or I2C SDA interface functions.
15 DP bidirectional USB Port Data Plus (D+) Signal with integrated termination resistors and open-drain configuration.
16 DM bidirectional USB Port Data Minus (D-) Signal with integrated termination resistors and open-drain configuration.
17 VO_33 power_out +3.3V output from integrated 5V-to-3.3V LDO regulator; can supply up to 100mA to internal and external components.
18 GND power_in Ground.
19 RESET_N input Active low asynchronous reset input with internal pull-high resistor; can be pulled to VIN or VDD_IO.
20 VIN power_in USB VBUS power supply input, 2.8V to 5.5V operating range; use VBUS_DET GPIO for self-powered designs.
21 NC unconnected No internal connection; leave floating.
22 GPB0 bidirectional Configurable GPIO Pin; supports TX_LED or CLK_OUT output functions.
23 GPB1 bidirectional Configurable GPIO Pin; supports RX_LED or TRX_LED output functions.
24 GPB4 bidirectional Configurable GPIO Pin; supports CLK_OUT or BC_SUSP_N output functions.
25 GPB5 bidirectional Configurable GPIO Pin; supports BC_DET battery charge detection output function.
26 NC unconnected No internal connection; leave floating.
27 XI input Optional 12MHz crystal oscillator input; if not used, leave floating.
28 XO output Optional 12MHz crystal oscillator output; if not used, leave floating.

Key specifications

Parameter Value
Manufacturer Prolific Tech
Package SSOP-28
Category Interface
Pins 28

CAD (KiCad official)

  • Symbol: PL2303GC
  • Footprint: Package_SO:SSOP-28_5.3x10.2mm_P0.65mm
  • 3D model: SSOP-28 (KiCad packages3D, STEP)
  • 3D model files: pl2303gc-etched.step / pl2303gc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); pl2303gc.step / pl2303gc.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Prolific Tech datasheet (49 pp, sha256 b652483a6d683954, retrieved 2026-09-22, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF