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The scope of application	version	upload time	size
CH340，CH341，CH342，CH343，CH344，CH347，CH348, CH9101，CH9102，CH9103，CH9104，CH9143，CH9340，CH9344，CH351，CH352，CH353，CH355，CH356，CH357，CH358，CH359，CH382，CH384	1.4	2023-03-03	1.83MB
Serial port debug software for Windows. Integrates UART functions and various common tools, supports multi-serial port communication, UART intercommunication test, file sending and receiving, input and display of string and hexadecimal data, debug of module frame format etc.
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relation files

file name	file content
CH340DS1.PDF	CH340 datasheet, USB bus converter chip which converts USB to serial port, printer port, IrDA SIR etc. Integrated clock, supports various operating systems, chip information can be customized, this datasheet is about USB to serial port and USB to Infrared Adapter SIR.
CH341DS1.PDF	CH341 datasheet, USB bus converter chip with multiple communication interfaces, such as USB to serial port/parallel port/printer port/I2C interface etc. Drivers support for Windows/Linux/Android/Mac, etc. The datasheet is the description of USB to serial port and printer port.
CH9344DS1.PDF	CH9344 datasheet, USB to quad serial ports, supports up to 12Mbps baud rate and hardware flowcontrol, provides RS485 direction control and GPIO and other signal pins, which can expand UART for computer or upgrade directly common serial device or MCU to USB bus.
CH351DS1.PDF	CH351 datasheet, PCI bus to dual serial ports or printer port chip, used for PCI to dual serial ports, PCI to printer port (parallel port). Supports Windows/Linux/macOS, etc.This datasheet is about PCI to dual serial ports.
CH382DS1.PDF	CH382 datasheet, PCI-Express bus to dual serial ports and printer/parallel port chip. Supports up to 8Mbps baud rate, supports Windows/Linux/macOS, etc. Used for PCIE high-speed serial port with automatic hardware flow control, serial ports networking, RS485 communication, parallel/printer port expansion, etc.
CH384DS1.PDF	CH384 datasheet, PCI-Express bus to multiple serial ports and printer/parallel port chip . Supports PCIE converts to Quad UARTs, Quad UARTs and a printer/parallel port, 8 UARTs, 28 UARTs,, etc. Supports up to 8Mbps baud rate, used for PCIE high-speed serial port with automatic hardware flow control, serial ports networking, RS485 communication, parallel/printer port expansion, etc. Supports Windows/Linux/macOS, etc. This datasheet is about PCIE to Quad UARTs and printer/parallel port.