FTDI (Future Technology Devices International) cable refers to a type of USB-to-serial converter cable that incorporates an FTDI chipset. It is commonly used to connect electronic devices, such as microcontrollers, development boards, and other embedded systems, to a computer or other USB-enabled devices.
The FTDI cable provides a convenient way to establish a serial communication link between a computer and a target device, allowing data transfer and control commands to be exchanged. It converts the USB interface on the computer into a serial interface, typically using UART (Universal Asynchronous Receiver-Transmitter) protocol.
Here are some key features and components of an FTDI cable:
USB Connector: The cable features a USB Type-A connector on one end, which is plugged into the USB port of the computer or other host devices.
FTDI Chipset: The FTDI cable incorporates an integrated circuit (IC) manufactured by Future Technology Devices International. The FTDI chipset acts as a bridge between the USB interface and the serial interface, handling the conversion and communication protocols.
Serial Connector: The other end of the FTDI cable is equipped with a connector that provides a serial interface, typically using pins or a socket. The specific type of serial connector can vary, such as a 6-pin header, a 10-pin IDC connector, or a male DB-9 connector.
Signal Lines: The FTDI cable has several signal lines that facilitate the communication between the USB and serial interfaces. These lines typically include TX (transmit), RX (receive), RTS (request to send), CTS (clear to send), DTR (data terminal ready), and GND (ground). The TX and RX lines are responsible for transmitting and receiving data, while the other lines handle flow control and status signals.
Drivers: In order to use an FTDI cable, the appropriate drivers need to be installed on the computer. FTDI provides drivers for various operating systems, including Windows, macOS, and Linux. These drivers enable the computer to recognize the FTDI cable as a virtual serial port and establish communication with the connected device.
FTDI cables are popular among electronics enthusiasts, hobbyists, and professionals due to their ease of use, versatility, and wide compatibility. They provide a simple and reliable way to connect and communicate with various devices that use serial interfaces. The FTDI chipset's drivers are well-documented and supported, ensuring widespread compatibility across different operating systems and development environments.
In addition to basic serial communication, FTDI cables often come with additional features such as GPIO (General Purpose Input/Output) pins, which allow for general-purpose digital I/O capabilities. This makes them suitable for a wide range of applications, including programming and debugging microcontrollers, firmware development, and interfacing with sensors and actuators.
Overall, the FTDI cable is a valuable tool for establishing a seamless connection between a computer and embedded systems, making it easier to develop, program, and debug electronic projects.





