Description
PL2303 UART Module integrated with PL2303 IC from Prolific Technology, which is a single-chip USB to UART bridge IC. This USB-to-UART bridge controller provides a simple solution to update the design of the RS-232 using minimal components and PCB space. Royalty-free Virtual COM Port (VCP) allows device drivers as a COM port in PC applications. This module allows an asynchronous serial data bus (UART) with a USB 2.0 full-speed function controller, USB transceiver, and full modem control signal.
PL2303 UART Module Pinout Configuration
| Pin Name | Description |
| 3.3V | 3.3V VCC pin |
| 5.0V | 5.0V VCC pin |
| TxD | Asynchronous data output (UART Transmit) |
| RxD | Asynchronous data input (UART Receive) |
| GND | Ground |
The circuit board has connectors raster 2.54 mm suitable for breadboards or to connect using wires.
Attention!This device does not work with Windows 8, 8.1 and 10. |
Specifications:
- USB to TTL Serial Converter
- USB to TTL Adapter.
- Use this device to connect your PC to a serial (TTL level) device.
- Standard USB type A male and TTL 6pin connector.
- 6 pins for 3.3V, RST, TXD, RXD, GND & 5V.
- All handshaking and modem interface signals.
- Baud rates: 300 bps to 1.5 Mbps.
- Byte receive buffer; 640 byte transmit buffer.
- Hardware or X-On/X-Off handshaking supported.
- 3.3V & 5.0V operations for DDWRT support on different voltage system
- 500mA self-recovery fuse for protection.
- Two data transmission indicators can monitor data transfer status in real time
- Works with existing COM port PC applications. Ready for Windows 8/7/Vista/Server 2003/XP/2000/CE
- Plastic coating protection from standard wear and tear.
PCB Size : 30 x 15 mm
PL2303 Module Overview
The main USB to UART bridge IC is PL2303.
This PL2303 UART module is a USB to TTL UART Converter module which is based on PL2303 Bridge by Prolific Technology. This PL2303 UART module is compliant with USB2.0 full-speed devices with an integrated transceiver. It has real-time LEDs on the data lines that provide data transfer status in real-time. A 500 mA of a self-recovery fuse is used for protection purposes.
This module can be used as a standard serial port with Laptops that don’t have a standard serial port. This module creates a virtual COM port using USB on your computer which can support various standard Baud Rates (300 bps to 1 Mbps) for serial communication. This module includes the TX (transmit) and RX (receive) data signals.
Interfacing Diagram
The interfacing of the PL2303-based UART module is quite easy. Follow the below image to connect the module. The UART module can be interfaced with any microcontroller unit that has a UART interface.
Applications
- Debug purpose in the development
- Microcontroller to PC communication
- Programming related purposes
