USB to RS232 or RS485 or TTL CH343G version

• Compatible with USB 2.0 Full-Speed standards.
• Supports both 5V and 3.3V power supplies.
• Built-in USB transceiver; no external crystal oscillator required.

Serial Interface:

• Data Rates: Supports communication speeds from 50 bps up to 6 Mbps.
• Signal Levels: Operates with 5V, 3.3V, 2.5V, and 1.8V logic levels, allowing direct interfacing with various microcontrollers and devices.
• Protocols Supported: RS232, RS485, and TTL.
• Flow Control: Supports CTS and RTS hardware automatic flow control.
• MODEM Signals: Provides common MODEM interface signals including RTS, DTR, DCD, RI, DSR, and CTS.

Additional Features:

• Automatic recognition and dynamic adaptation of baud rates, especially for rates at or below 115200 bps.
• Integrated power-on reset and low-voltage reset circuits.
• Unique ID (USB Serial Number) embedded within the chip.
• Supports operating systems with built-in CDC drivers or multifunctional high-speed VCP vendor drivers, ensuring broad compatibility.