PL2303 UART module integrated with PL2303 IC from Prolific Technology, a single-chip USB to UART bridge IC. This USB-to-UART bridge controller provides a simple solution for updating the RS-232 design using minimal components and PCB space. Royalty-free Virtual COM Port (VCP) allows device drivers to be used as a COM port in PC applications. This module enables an asynchronous serial data bus (UART) with USB 2.0 full-speed controller, USB transceiver, and full-mode control signal.
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PL2303 Module Overview
This PL2303 UART module is a USB to TTL UART Converter module based on PL2303 Bridge by Prolific Technology. This PL2303 UART module is compatible with USB2.0 full-speed devices with an integrated transceiver. It has real-time LEDs on data lines that provide real-time data transfer status. A 500 mA self-recovery fuse is used for protection purposes.
PL2303 Module Overview
This module can be used as a standard serial port with laptops that do not have a standard serial port. This module creates a virtual COM port using a USB port on your computer that can support various standard baud rates (300 bps to 1 Mbps) for serial communication. This module includes both TX (transmit) and RX (receive) data signals.
PL2303 Module Pinout
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| PL2303 Module |
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| PL2303 Module Pinout |
| 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 |
PL2303 Module Features
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3.3V & 5.0V operations for DDWRT support on different voltage system
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Standard USB type A male and TTL 6pin connector.
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500mA self-recovery fuse for protection.
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Two data transmission indicator can monitor data transfer status in real-time
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Works with existing COM port PC applications. Ready for Windows 8/7/Vista/Server 2003/XP/2000/CE
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Plastic coating protection from standard wear and tear.
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Size: 52mm X 15.5mm x 6.5mm (L x W x H).
PL2303 Interfacing Diagram
The interface of the PL2303 UART module is quite easy. Follow the image below to connect to the module. The UART module can be interfaced with any microcontroller that has a UART interface.
PL2303 Interfacing Diagram
PL2303 Module Applications
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Debug purpose in the development
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Microcontroller to PC communication
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Programming related purposes
PL2303 Module Dimensions
Component Datasheet
PL2303 Datasheet
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