CH341A USB to SPI/I2C/IIC/UART/TTL/ISP Serial Converter Module

CH341A USB to SPI/I2C/IIC/UART/TTL/ISP Serial Converter Module

The CH341A USB to SPI/I2C/IIC/UART/TTL/ISP Serial Converter Module is a compact and versatile programming tool ideal for developers and electronics enthusiasts. Supporting multiple serial communication protocols, it serves as an excellent solution for debugging microcontrollers and memory chips, flashing firmware, and performing serial communication tasks.

Featuring a plug-and-play USB interface, it enables easy conversion between USB and TTL, I2C, or SPI. Suitable for BIOS flashing, EEPROM programming, and embedded system development, this module simplifies connectivity with devices such as Arduino and Raspberry Pi. It is an indispensable tool for firmware engineers, hobbyists, and reverse engineering specialists.

Features

• Built-in CH341A USB controller chip
• Full-speed USB interface, USB V2.0 compliant, standard USB-A male connector design
• Powered via PC USB; standard serial port emulation; suitable for upgrading serial peripherals, adding serial ports, or enabling USB-based communication
• Supports 3.3V and 5V TTL target systems; serial application is fully compatible with Windows-based PC software
• 5, 6, 7, or 8 data bits;
Supports odd, even, space, mark, and no-parity modes
• Supports serial port data transmission/reception ready signals, transmission rate control signals, and MODEM connection signals;
• Can be converted to RS232 and RS485 interfaces by adding a level converter module (supporting modules sold separately);
• Offers two parallel port interface modes: EPP and MEM; USB-to-parallel port conversion can be used for simple digital I/O control;
• Supports various serial communication modes such as UART, I2C, and SPI;
• Supports 2-wire and 4-wire synchronous serial interfaces; offers four different transmission speed options for I2C;
• Provides excellent support for program downloading and debugging for STC microcontrollers (MCUs) (using the method officially recommended by STC)
• Output voltage support; options available for 3.3V, 5V, or no output
  Hardware-based full-duplex serial port; internal data transmit and receive buffers; Supports communication speeds (baud rates) ranging from 50bps to 2Mbps.
• Supports Windows 98/ME/2000/XP/Server 2003/Vista/Server 2008/Win 7 (32-bit and 64-bit).