PL2303HX USB to TTL Converter Module – Download Cable for STC/STM32 Programming, STK500, and Satellite Receiver Upgrades (e.g., ZX-9)

Description

Product Overview

The PL2303HX USB to TTL Converter Module is a versatile and reliable serial communication adapter designed to bridge the gap between your computer’s USB port and a wide range of microcontrollers and electronic devices. Based on the prolific PL2303HX chipset, this module converts USB signals to TTL (Transistor-Transistor Logic) level serial signals, allowing you to program, debug, and communicate with embedded systems that lack native USB connectivity .

This converter is an indispensable tool for electronics hobbyists, embedded system developers, and technicians. It is specifically designed as a download cable for STC microcontrollers and is widely used for programming STM32 boards, serving as an STK500 programmer for AVR devices, and performing firmware upgrades on satellite receivers such as the ZX-9 model .

The module features a 5-pin interface (3.3V, 5V, TXD, RXD, GND), supporting both 3.3V and 5V logic systems, with onboard self-recovery fuse protection to safeguard your computer’s USB port from accidental short circuits . The entire circuit board is coated with a high-quality transparent heat-shrinkable tube, providing electrical insulation while allowing visual inspection of the components .

Whether you’re a student learning microcontroller programming, a professional engineer developing embedded systems, or a technician servicing satellite equipment, the PL2303HX module offers a cost-effective, proven solution for your serial communication needs.

Key Features

• Prolific PL2303HX Chipset: Based on the authentic Prolific PL2303HX USB-to-UART bridge controller, ensuring stable high-speed communication and broad compatibility .

• 500mA Self-Recovery Fuse Protection: Onboard resettable fuse protects your computer’s USB port from damage caused by accidental short circuits or overcurrent conditions .

• Dual Voltage Output (3.3V & 5V): Supports both 3.3V and 5V logic systems via reserved pin interfaces, making it compatible with a wide variety of target devices .

• Visual Status Indicators: Two onboard LEDs (TXD and RXD) provide real-time visual feedback of data transmission and reception activity, simplifying debugging .

• Transparent Heat-Shrink Insulation: The entire PCB is covered with high-quality transparent heat-shrinkable tube, providing electrical insulation and protection against accidental short circuits .

• Wide Operating System Support: Compatible with Windows XP, Vista, 7, 8, 10, and 11 (with appropriate drivers), macOS, and Linux systems .

• High-Speed Communication: Supports baud rates up to 1 Mbps or higher, ensuring fast and stable firmware uploads and data transfer .

• Parallel Pin Design: Interface pins are parallel to the board (instead of perpendicular), facilitating easy connection of Dupont wires during programming .

• 5-Pin Standard Interface: Pinout includes 3.3V, 5V, TXD, RXD, and GND – clearly labeled for easy wiring .

• Electrostatic Bag Packaging: Each module is sealed in an electrostatic bag to ensure quality protection before use .

Technical Specifications