7Semi CH343 USB-A to UART TTL Converter module

The 7Semi CH343 UART Module provides a convenient USB-to-TTL UART interface for connecting computers with microcontrollers, development boards, embedded systems, and serial devices. It converts USB data into standard UART TX and RX signals, allowing the computer to communicate directly with the connected hardware

The module can be used for development, serial monitoring, configuration, testing, and troubleshooting applications. Users can connect TX, RX, and GND to the target system and use standard serial-terminal or development software to exchange data and monitor device messages.

Key Features

• Supports RTS/CTS hardware flow control for reliable serial communication.
• Supports high-speed UART communication for applications that require faster serial data transfer.
• Works with standard CDC or Virtual COM Port drivers for convenient computer connectivity.
• Supports commonly used UART data formats and serial communication settings.
• The module supports a 5 V DC typical USB supply, while the built-in regulator provides 3.3 V with up to external load capacity. 
• The integrated USB interface, clock, and reset functions help reduce additional circuitry on the board.
• Its flexible UART interface makes it suitable for prototyping, debugging, production testing, and embedded-device configuration.

Items Included

• 1 × 7Semi CH343 UART Module
• 1 × 2.54 mm Pitch Pin Headers

CH343 Datasheet

DXF File

STEP File