CH340G USB to Serial TTL Converter IC SMD SOP 16 Package

CH340G USB to Serial TTL Converter IC SMD SOP 16 Package 

The CH340G is a widely used USB to serial TTL converter IC that provides an easy and cost-effective solution for adding USB connectivity to microcontroller-based and embedded systems. It converts USB data into standard UART serial signals (TXD/RXD), allowing devices to communicate with a PC through a virtual COM port.

The IC integrates a USB 2.0 full-speed interface and supports common serial communication parameters. It requires an external crystal oscillator for clock generation and operates from a 5 V supply, with logic-level serial outputs suitable for direct connection to microcontrollers. Packaged in a compact SOP-16 surface-mount package, the CH340G is ideal for low-cost and space-efficient designs.

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Features

• USB 2.0 full-speed compliant
• Converts USB to UART TTL serial interface
• Supports standard baud rates
• Virtual COM port support on host systems
• Requires external crystal oscillator
• TTL/CMOS compatible serial signals
• Simple hardware design with minimal components
• Low power consumption
• Cost-effective USB-to-serial solution
• SOP-16 SMD package for compact PCB layouts

Applications

• USB to TTL serial adapters
• Microcontroller programming and debugging
• Embedded system communication
• Development boards and evaluation kits
• Arduino and compatible platforms
• Industrial and consumer electronics
• Data logging and monitoring systems

ch340g-ic-datasheet