PL2303GE

ESD-Protected USB to Serial Bridge Controller

OVERVIEW

The PL2303GE is a low cost, high performance, and ESD-protected USB-to-Serial Bridge Controller. The PL2303GE provides a convenient solution for connecting an RS-232 full-duplex asynchronous serial device to any Universal Serial Bus (USB) capable host that requires USB port system-level high ESD protection.

The PL2303GE eliminates the need for external ESD protection components to minimize PCB size and save BOM costs. It offers ESD protection on the USB port pins up to ±15kV Human Body Model (HBM) and is according to the IEC-61000-4-2 ESD specification.

The PL2303GE is exclusively designed for mobile, embedded systems, and industrial control systems, providing a stable and flexible solution for connectors and devices. With very small power consumption in either operating or suspend mode, it is perfect for bus powered operation with plenty of power left for the attached devices. Flexible signal level requirement on the RS-232 serial port side also allows the PL2303GE to connect directly to 5V ~ 1.8V devices.

The PL2303GE integrates embedded clock and OTPROM (One-Time Programmable ROM) to save external crystal and EEPROM.

FEATURE

  • Full compliance with the USB Specification v1.1
  • Supports RS232 / RS422 / RS485 interface ±15kV High ESD HBM (Human Body Model) Protection on USB Port (4-Pin)
  • System-level ESD Specification on USB Port (4-Pin)
    • ±15kV IEC 61000-4-2 Air Discharge
    • ±8kV IEC 61000-4-2 Contact Discharge
  • On-chip USB 1.1 transceiver and 5V to 3.3V regulator
  • On-chip 96MHz clock generator
  • Supports RS-232 serial interface with Programmable baud rate from 1 bps to 12 Mbps
  • Supports OTPROM (One-Time Programmable ROM) for USB device descriptors.
  • OTPROM can be programmed directly through USB port.
  • Configurable outbound and inbound buffer
  • Supports remote wake-up from MODEM input signals
  • Pin-to-Pin compatible with PL2303EA

PACKAGE

  • SSOP28

Technical Support

Product Brochure

DescriptionVersionUpdated
DownloadPL2303GE product brochure20190613

Datasheets & Notice

DescriptionVersionUpdated
DownloadPL2303GE USB to Serial Bridge Controller Datasheet
(with High ESD Protection)		1.0.12022/01/26

Drivers & Software

DescriptionVersionUpdated
DownloadWindows Driver Installer Setup Program ( Win7 / Win8.1 / Win10 / Win11)
Installer version & Build date: 4.5.0.0 (2025-08-08)

Windows 11 ( 64-bit ) WDF WHQL Driver: v3.9.6.0 (11/27/2024) / v5.2.9.0 (07/25/2025)

(For PL2303 HXD, SA, RA GC, GS, GT, GL, GE , GD, GR versions)
– Windows 11 Certified WHQL Driver ( 24H2 versions)
– Auto-download driver via Windows Update (Windows 11)

Windows 7/8.1/10 (32 & 64-bit) WDF WHQL Driver: v3.8.43.0 (05/29/2024) / v5.1.9.0 (07/23/2025)

(For PL2303 HXD, SA, RA, GC, GS, GT, GL, GE , GD, GR versions)
– Windows 10 Certified WHQL Driver (TH1 1507, TH2 1511, RS1 1607, RS2 1703, RS3 1709, RS4 1803,RS5 1809,19H1 1903, 19H2 1909, 20H1 VB, 21H1, 22H1versions)
– Windows 7, 8.1 Certified WHQL Driver
– Compatible with Windows Server 2008, 2008R2, 2012, 2012R2, 2016, 2019 , 2022
– Auto-download driver via Windows Update (Windows 7, 8.1, 10)

– Installer Language Support: English (default),

– For Prolific USB VID_067B&PID_2303, PID_2304, PID_23A3, PID_23B3, PID_23C3,PID_23D3,PID_23E3,PID_23F3,PID_2323.
– Includes Certification Report, User Manual, Driver Release Notes, CheckChipVersion Tool
– Installer supports silent install (add “/s” parameter when running program)

v4.5.0.02025/08/08
DownloadWindows DCHU+DFx+Modem Standy Driver INF Setup ( Win10 / Win11)

Windows 11 ( 64-bit ) WDF WHQL Driver: v5.2.8.2 (12/12/2024)

Windows 10 ( 32 / 64 bit ) WDF WHQL Driver: v5.1.8.2 (12/11/2024)

(For PL2303 GC, GS, GT, GL, GE , GD, GR versions)
– Windows 11 Certified WHQL Driver ( 24H2 versions)

– Windows 11 Certified WHQL Driver ( 21H2 versions)

– Windows 10 Certified WHQL Driver ( 2004 versions)

– Windows 10 Certified WHQL Driver ( 1903 versions)

– Windows 10 Certified WHQL Driver ( 1809 versions)
– Auto-download driver via Windows Update (Windows 11)

DCHU: https://learn.microsoft.com/en-us/windows-hardware/drivers/develop/dch-example

Directed PoFx (DFx): https://learn.microsoft.com/en-us/windows-hardware/drivers/kernel/introduction-to-the-directed-power-management-framework

Modem Standy: https://learn.microsoft.com/en-us/windows-hardware/design/device-experiences/modern-standby

v1.0.0.02025/05/13
DownloadWindows ARM64 Driver Installer Setup Program ( Win10 / Win11)
Installer version & Build date: 6.1.0.0 (2024-08-28)

Windows 10 / 11 ( ARM64-bit ) WDF WHQL Driver: v5.3.7.0 (06/27/2024)

(For PL2303 GC, GS, GT, GL, GE , GD, GR versions)
– Windows 11 Certified WHQL Driver ( 24H2 versions)
– Auto-download driver via Windows Update (Windows 11)

– Installer Language Support: English (default),

– For Prolific USB VID_067B&PID_23A3, PID_23B3, PID_23C3,PID_23D3,PID_23E3,PID_23F3,PID_2323.
– Includes Certification Report, User Manual, Driver Release Notes
– Installer supports silent install (add “/s” parameter when running program)

v5.3.7.02024/09/06
DownloadPL2303G 16-GPIO LED Indicator Application Note
Includes GPIO Test Sample Program and Source Code		v1.0.0.32023/09/21
DownloadPL2303G WinCE 7.0 Driver for ARMv1.0.0.02023/07/26
DownloadMac OS X Universal Binary Driver v2.2.5 (PKG file format)

For Mac OS Sequoia (version 15)
For Mac OS Sonoma (version 14)
For Mac OS Ventura (version 13)
For Mac OS Monterey (version 12.4)
For Mac OS Big Sur (version 11) – see NOTE#1 below
For Mac OS Catalina (version 10.15) .
For Mac OS Mojave (version 10.14)
For Mac OS High Sierra (version 10.13)
For Mac OS X Sierra (version 10.12)
For Mac OS X El Capitan (version 10.11)
For Mac OS X Yosemite (version 10.10)
For Mac OS X Mavericks (version 10.9)
For PL2303 H/HX/HXD/EA/RA/SA/TA/TB chip versions
For Prolific USB VID_067B&PID_2303 Only
For PL2303GC, GS, GT, GL, GE , GD, GR chip versions
Includes Driver Installation Manual
NOTE#1: Mac OS High Sierra 10.13 introduces a new feature that requires user approval before loading new third-party kernel extensions. Go to System Preferences – Security & Privacy and click Allow.

https://developer.apple.com/library/content/technotes/tn2459/_index.html

NOTE#2: User can download PL2303 driver on Mac APP store. https://apps.apple.com/tw/app/pl2303-serial/id1624835354?l=en&mt=12

v2.2.112025/03/14
DownloadPL2303G Android USB Host API SDK v1.0.0.10

Requirements:
———————
– USB Device with PL2303GC, PL2303GS, PL2303GT, PL2303GL, PL2303GE, PL2303GR, PL2303GD, PL2303GT-2AB controller chip
– Android-Powered Device (Tablet/Phones) with USB Host Mode Support
– Android 3.2 and above OS versions

SDK Package includes following:
———————————————————–
1. PL2303 Sample Test Android App Software
– Single port (PL2303GSimpleTest.apk)
– GPIO A Control (PL2303G_GPIO_A_Test.apk)
– GPIO B Control (PL2303G_GPIO_B_Test.apk)
– Multi-port (PL2303G_MultiSimpleTest.apk)
2. PL2303G Android Demo Apps User’s Manual
3. PL2303G Android Sample App Source Code
4. PL2303G Android Java Driver Library
5. PL2303G Android App Development Reference Documents

User can download PL2303G app on Google Play.
https://play.google.com/store/apps/dev?id=5801101758672272902

v1.0.0.102025/09/04
Download
Linux Kernel 5.5 and above already includes built-in drivers for PL2303G Chip.

If you’s Linux kernel is v2.6.15 ~v5.4, Please update the PL2303G Linux driver via PL2303G_Linux_Driver_v1.0.7.zip

v1.0.72023/10/02

Reference Design Guide

DescriptionVersionUpdated
DownloadPL2303GE_SSOP28 Reference Schematic with RS-232 TransceiverV1.02020/04/10
Back

Application Note & User Manual

DescriptionVersionUpdated
Download
Download

Test Reports

DescriptionVersionUpdated
Download
Download

MP Tools (For Vendors Only)

DescriptionVersionUpdated
Download
Download

Firmware (For Vendors Only)

DescriptionVersionUpdated
Download
Download

Prolific Internal Only

DescriptionVersionUpdated
Download
Download

Software

DescriptionVersionUpdated
Download
Download

Taipei Headquarter

Hsinchu Office

© Copyright – Prolific Technology Inc. | design by Morcept