FT4222HQ-R

Controllers Overview

The FT4222HQ-R is a USB bridge controller manufactured by FTDI, designed to convert USB 2.0 High Speed signals to I2C and SPI interfaces. It operates within a supply voltage range of 1.8V, 2.5V, and 3.3V, with a maximum operating current of 80mA. The device supports data rates up to 3.4 Mb/s for I2C and features a quad-port architecture. It is housed in a QFN-EP-32 package and functions reliably across an industrial temperature range of -40°C to +85°C.

Controllers Feature Summary

• Integrates USB 2.0 High Speed protocol handling with configurable I2C and SPI master/slave controllers on a single chip.
• Supports multiple SPI transmission modes including single, dual, and quad data widths with configurable clock frequencies.
• Includes internal OTP memory for storing VID, PID, serial numbers, and product description strings.

Controllers Applications

• USB to Quad-SPI/I2C bridge modules
• Industrial control systems requiring high-speed serial communication
• Embedded devices needing flexible interface conversion

Controllers Procurement Notes

Verify the specific suffix 'R' against the manufacturer's latest datasheet to confirm packaging type and availability status. Cross-reference the part number with authorized distributors to ensure authenticity and check for any recent production changes or obsolescence notices. Confirm RoHS compliance documentation matches the required regulatory standards for your region.

Controllers Selection Notes

Select this component when a single-chip solution is needed to bridge USB 2.0 High Speed to multiple I2C or SPI lines. Ensure the design supports the 1.8V to 3.3V supply requirements and accommodates the QFN-EP-32 thermal pad for adequate heat dissipation. Verify that the target application does not require UART functionality, as this model focuses on I2C/SPI protocols.

Controllers Part Context

This part belongs to the FT4222H series from FTDI, which specializes in USB-to-I2C/SPI bridge controllers. The series is known for providing flexible interface options without requiring complex firmware development on the host side. The FT4222HQ-R variant specifically denotes the reel-packaged version of this high-performance bridge IC.

Controllers Replacement Considerations

Check for FT4222HQ-D-R if tape-and-reel packaging differs. Consider FT4222H family members for similar functionality but verify pin compatibility and electrical specifications before substitution.