FT240X Full Speed USB to 8-bit FIFO Driver

Download the FT240X Full Speed USB to 8-bit FIFO driver here. The USB2.0 Full Speed IC provides a convenient solution as a bridge to 8-bit wide FIFO interfaces. Acting as a FIFO itself, the device offers efficient operation with a maximum speed of 1 MByte/s, while consuming low power at 8mA.

FT240X Full Speed USB to 8-bit FIFO Driver

In addition, the FT240X incorporates the comprehensive feature set of the FT-X series, making it a versatile choice. With its 8-bit wide FIFO interface, the FT240X enables swift and hassle-free integration of USB into any system design. Likewise see the CP2104 and CP2102 as well as the Inspiron 15 5559 Webcam driver.

Hardware Features

The chip at hand provides a comprehensive solution for USB connectivity, boasting a multitude of features and capabilities. Firstly, the entire USB protocol is handled directly on the chip, eliminating the need for any USB-specific firmware programming. This makes integration and implementation much simpler and more straightforward.

FT240X Full Speed USB to 8-bit FIFO DriverOne notable feature is the fully integrated 2048 byte MTP Memory. This memory serves as a storage space for device descriptors and CBUS I/O configuration, allowing for easy customization and configuration of the chip’s behavior. Furthermore, the chip incorporates a fully integrated clock generation system, removing the need for an external crystal. Additionally, it offers optional clock output selection, which enables a glue-less interface to external MCUs or FPGAs.

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Transfer Rates

In terms of data transfer rates, the chip supports speeds of up to 1 MByte/s. It includes a 512 byte receive buffer and a 512 byte transmit buffer, both utilizing buffer smoothing technology. This technology ensures efficient and high-speed data throughput, enhancing overall performance. Likewise also see the FT231X – Full Speed USB to Full UART and FT221X USB to 8-bit SPI (FT1248 Bridge) on here.

To simplify the development process, FTDI provides royalty-free Virtual Com Port (VCP) and Direct (D2XX) drivers. These drivers eliminate the need for custom USB driver development in most cases, saving time and effort for developers. The chip also offers configurable CBUS I/O pins, providing flexibility and customization options for various applications.


Additionally, the chip features transmit and receive LED drive signals, allowing for visual indicators of data transfer activity. It supports both synchronous and asynchronous bit bang interfaces, offering versatility and flexibility in interfacing with other devices. RD# and WR# strobes further enhance the functionality of the bit bang interfaces.

The chip includes battery charger detection, a useful feature for mobile devices. This feature enables the detection of a charger on the USB port, facilitating higher current and faster charging of batteries. Furthermore, each device is supplied pre-programmed with a unique USB serial number, ensuring individual identification and compatibility.


The chip supports various USB configurations, including bus-powered, self-powered, and high-power bus-powered setups. It includes an integrated +3.3V level converter for USB I/O, ensuring seamless communication with other devices and systems. Moreover, it offers true 3.3V CMOS drive output and TTL input compatibility. The chip is designed to operate down to 1V8 with external pull-ups and is also 5V tolerant, offering compatibility with a wide range of voltage levels.

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Additional features include configurable I/O pin output drive strength, an integrated power-on-reset circuit, and low USB bandwidth consumption. The chip is compatible with UHCI/OHCI/EHCI host controllers, providing compatibility with various host systems. Lastly, it complies with the USB 2.0 Full Speed standard, ensuring seamless integration with USB 2.0 devices and systems. Additionally also see the FT201X Full Speed USB to I2C Bridge Driver and FT230X USB to Basic UART Driver on this website.

Application Usage

  • Upgrading Legacy Peripherals to USB
  • Cellular and Cordless Phone USB data transfer cables and interfaces
  • Interfacing MCU/PLD/FPGA based designs to USB
  • USB Smart Card Readers

Products such as the FT240XS-U chip which is a USB Bridge or USB to FIFO USB 2.0 FIFO Interface 24-SSOP. You can buy these from reputable sellers online such as the FT240XQ-x 24 Pin QFN and FT240XS-x 24 Pin SSOP. Digi-Key Electronics as well as  Mouser Electronics and RS Americas. Be careful of fake chips as they will not work with the latest drivers.

Related to this is the UMFT240XA – FT240XQ Based USB to 8-Bit FIFO Development Module. Likewise the UMFT201XE – FT201XQ based USB to I2C, 0.6” wide module which are also related to this. Lastly also see the F600/FT601 Series Driver on here.

D2XX Direct Drivers

Windows (Desktop) 2021-07-15

FT240X Driver X86 (64-Bit)

FT240X Driver X86 (32-Bit)

Windows RT Driver (ARM) (2014-07-04)

Linux X64 (64-Bit) / X86 (32-Bit)  (2020-05-18)


VCP Drivers

Windows (Desktop) 2021-07-15

FT240X Driver X86 (64-Bit)

FT240X Driver X86 (32-Bit)