The PL-2303HX is a low cost and high performance USB-to-Serial Bridge Controller. The PL-2303HX provides a convenient solution for connecting an RS-232 like full-duplex asynchronous serial device to any Universal Serial Bus (USB) capable host. The PL-2303HX highly compatible drivers could simulate the traditional COM port on most operating systems allowing the existing applications based on COM port to easily migrate and be made USB ready. The PL-2303HX is exclusively designed for mobile and embedded solutions in mind, providing a small footprint that could easily fit in to any connectors and handheld devices. With very small power consumption in either operating or suspend mode, the PL-2303HX is perfect for bus powered operation with plenty of power left for the attached devices. Flexible signal level requirement on the RS-232 like serial port side also allows the PL-2303HX to connect directly to 5V, 3.3V, or 2.5V devices.
- Full compliance with the USB Specification v1.1
- On chip USB 1.1 transceiver, 5V®3.3V regulator, and 12 MHz crystal oscillator
- Support RS-232 like serial interface
- Full-duplex transmitter and receiver (TXD and RXD)
- Six MODEM control pins (RTS, CTS, DTR, DSR, DCD, and RI)
- Parity error, frame error, and serial break detection
- Programmable baud rate from 75 bps to 6,000,000 bps
- Extensive flow control mechanism
- Adjustable high/low watermark level
- Automatic flow control with CTS/RTS/ XON/XOFF
- Configurable 256-byte outbound buffer and 256-byte inbound buffer or 128-byte outbound buffer and 384-byte inbound buffer
- Support remote wake-up from MODEM input signals
- Two general purpose I/O (GPIO) pins
- Optional external EEPROM for startup device configurations
