One example just to 3 usb to interface with usb 2. Pricing and availability on millions of electronic components from digi-key electronics. The ft245 usb fifo board mini is an accessory board that provides a usb to parallel fifo interface, with ft245 chip onboard, also features usb mini-ab connector, and control interface 8 data pins & 6 control pins. One example is storing bytes incoming on a uart. The ft245rl is an usb to parallel fifo interface device in 28 pin ssop package. Fifo an acronym for first in, first out in computing and in systems theory, is a method for organising the manipulation of a data structure often, specifically a data buffer in which each earlier-arriving item, among those remaining to be processed and described, during that processing, as being the 'head' of or 'at the head of' that queue. Datasheet version 1.05 future technology devices international ltd. On the pc the interface is presented as a standard usb serial. From pc i send a command with the number of data i want to read this data are all 0, it is an example just to try i have this problem, if i want read data bytes < 63488 i have no problem i. Also, it will transfer data at ~300kbytes/sec. The ic has an integrated clock generator so no external clock is required. It supports 15 in and out endpoints as per the usb standards which are configurable in bulk, interrupt and isochronous modes as per the requirement. Incorporating ftdichip-id security dongle, view the manufacturer, and stock, and datasheet pdf for the ft245r at jotrin electronics. Usb protocol handled on chargeable basis.

The free software allows to control relays manually. Usb to fifo interface bridges at farnell. But it does need pyusb and, for linux, a udev rule to be added or windows, the libusb-win32 driver to be installed and configured. It is fully powered by the computer usb port.

In this video show, first time connect ft245rl to computer with win7, installing drivers, open program ft245rl test v1.1, select device, serial number, set p.

Ft245r usb fifo driver download