CH340G USB to Serial Converter IC | SOP-16 USB–UART Bridge

The CH340G is a widely used USB to UART converter IC designed to provide reliable communication between USB ports and UART-based microcontrollers. Supporting Full-Speed USB 2.0 and baud rates from 50 bps to 2 Mbps, the CH340G is commonly found in development boards, USB–serial adapters, IoT devices, and embedded systems.

With full-duplex UART capability, MODEM control signal support, and compatibility with RS232, RS485, and RS422interfaces via external level-conversion chips, the CH340G offers a flexible and cost-effective solution for USB serial communication. It is fully compatible with CH341 drivers, supports both 5V and 3.3V systems, and is packaged in an industry-standard SOP-16 format.

Features / Specifications

• IC Type: USB to UART Converter

• Model: CH340G

• Package: SOP-16

• USB Compatibility: USB 2.0 Full Speed

• Baud Rate: 50 bps to 2 Mbps

• Power Supply: 5V / 3.3V / 3V compatible

• Full-Duplex UART Interface

• Built-In Transmit/Receive Buffers

• MODEM Signals Supported: RTS, CTS, DTR, DSR, DCD, RI

• Optional support for RS232/RS485/RS422 via level converters

• Driver Compatibility: CH341 USB drivers

• Ideal For:

  • USB-to-serial adapters

  • MCU programming and debugging

  • Embedded systems

  • Serial communication modules

  • RS232/RS485/RS422 communication (with external chips)

Package Includes:
1 × CH340G USB to Serial Converter Chip – SOP-16

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