The PL-2303HX-LF is a single-chip USB to Serial Bridge controller designed to convert a USB connection to a standard RS232 serial port. It facilitates communication between devices with a serial interface and those with only USB ports, commonly used for legacy devices or embedded systems needing serial communication. The “LF” suffix typically indicates a Lead-Free version, complying with RoHS standards.

Applications

• Connecting legacy serial devices like modems, printers, and barcode scanners to modern computers via USB.
• Utilized in USB to UART converters for embedded systems development and debugging, enabling serial communication with microcontrollers.
• Facilitating data transfer between devices using serial communication protocols.
• Integration into set-top boxes, GPS navigation systems, and point-of-sale terminals.
• Programming and debugging of various embedded systems requiring serial interfaces.

Features

• Fully compliant with USB Specification v1.1 and v2.0, ensuring compatibility with a wide range of USB ports.
• Integrated on-chip USB transceiver, simplifying the connection process.
• Supports the RS232 serial interface with programmable baud rates for flexible communication speeds.
• Includes built-in EEPROM for storing configuration data, allowing customization.
• Supports remote wake-up and power management features, optimizing energy consumption.
• Available in various package options such as QFN and SSOP for diverse integration requirements.
• Lead-Free (LF) package, compliant with RoHS standards for environmental safety.

Benefits

• Provides a simple and cost-effective solution for USB to serial conversion, saving on hardware costs.
• Offers easy integration into existing systems, minimizing development time.
• Ensures wide compatibility with various operating systems including Windows, macOS, and Linux.
• Delivers a reliable serial communication link, essential for stable data transfer.
• Reduces the reliance on legacy serial ports on modern computers, streamlining connections.
• Compliant with environmental standards, reducing environmental impact.

Additional Details

The PL-2303HX-LF requires driver installation on the host computer to manage communication between the USB device and serial port. It is suitable for applications needing stable serial connections, and typically operates at standard USB voltages (5V). The chip supports handshake signals (RTS, CTS, DTR, DSR, DCD) and includes built-in flow control for reliable data transfer. The serial interface is configurable for different data bits, stop bits, and parity options, providing flexibility for various serial communication requirements.