CH340G USB to Serial TTL Converter IC SMD

The CH340G is a USB-to-Serial (UART) converter IC manufactured by WCH (Jiangsu Qinheng Co., Ltd.). It enables communication between a computer and microcontroller-based systems via USB. It is widely used in Arduino boards and various embedded system applications. 

General Features:

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• USB 2.0 Full-Speed support
• UART interface support (TXD, RXD, RTS, CTS pins)
• Hardware flow control support (RTS/CTS)
• Baud rate up to 2 Mbps
• Low power consumption
• Works with external crystal oscillator (typically 12 MHz)
• Built-in USB protocol handling
• Driver support for Windows, Linux, and macOS (may require manual installation)
• Available in DIP-16 or SOP-16 package 
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• Typical Applications:
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• Enabling USB connectivity on microcontroller development boards such as Arduino
• Projects requiring USB-to-serial communication between a computer and a device
• Using UART devices on modern PCs that lack traditional serial ports
• Programmer boards, data loggers, and test equipment 

• Key Pinout Summary:

Advantages: 

• Cost-effective and widely available
• Simple circuit integration for rapid prototyping
• Compatible with most operating systems
• Popular among Arduino users with strong community support
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