FT220X USB to 4-Bit SPI (FT1248 Bridge)

Download the FT220X USB to 4-Bit SPI (FT1248 Bridge) here. Note that the FT1248 Bridge is a type of bridge chip developed by FTDI that allows for communication between a microcontroller or other digital device and devices using the FT1248 protocol. The 4-bit SPI (Serial Peripheral Interface) refers to a variant of the SPI communication protocol that uses a 4-bit data bus instead of the standard 8-bit data bus.

FT220X USB to 4-Bit SPI (FT1248 Bridge)

Table of Contents

Offering a compact bridge to 4-Bit SPI/FT1248 link. Likewise this USB 2.0 Full Speed IC provides a seamless link solution. The chip functions as a FT1248 slave. In addition to supporting data rates of up to 500kBit/s. This while having low power usage (8mA). With the included and complete FT-X series feature set. Likewise the FT220X helps with the fast and easy addition of USB functionality to system designs, using the FT1248 link. This much like the FT201X Full Speed USB to I2C Bridge which uses the same protocol as well as the FT200XD Full Speed USB to I2C Bridge.

Hardware Features

Featuring the FT1248 serial parallel link in 1, 2, or 4-bit wide mode. Note that this device offers many data transfer options. In 1-bit mode, it operates similarly to an SPI slave. The chip takes care of the entire USB protocol. Likewise removing the need for USB-specific software programming.

With its fully integrated 2048 byte MTP Memory and device descriptors and CBUS I/O. Configuration can be easily stored. The chip also includes clock generation, requiring no external crystal. In addition also offers optional clock output selection for a easy link with other MCUs or FPGAs.

Application Usage

With its USB to SPI link operating in 1-bit mode, this device allows easy communication between USB and SPI systems. It serves as a better solution for USB software and hardware encryption dongles, allowing secure data transmission.

Moreover, the device offers dedicated charger port (DCP) detection, allowing for easy battery charging at higher currents. This function significantly reduces charge times, allow for faster and more easier charging experiences. Finally also see the Prolific UART as well as the CP2102 USB to UART Bridge Driver and 5 Ways To Use The UART Bridge.