FTDI FT4222HQ-D-T

USBМост, USB - I²C/SPII²C, SPI1,8 В, 2,5 В, 3,3 В, 5 В

Overview

The FT4222H is part of FTDI’s expansive USB offering. Compliant with the USB 2.0 high-speed standard, this is a feature-rich single-chip bridging solution with I2C and multi-channel SPI interface capabilities. With regard to SPI the device serves as a SPI master/slave interface controller and supports all four SPI modes (0, 1, 2, 3). It allows single, dual and quad data width transfer, so that total data rates of up to 27 Mbit/s are possible. The integrated configurable I2C master/slave interface controller conforms completely with both I2C v2.1 and v3.0 specifications. Support is given for operation in 100 kbit/s standard mode (SM), 400 kbit/s fast mode (FM), 1 Mbit/s fast mode plus (FM+) and 3.4 Mbit/s high-speed mode (HS). Configurable general purpose IOs (GPIOs) can be easily controlled by software applications via the USB bus. The USB 2.0 interface draws very little current either when it is active (75 mA typical) or while in suspend mode (375 μA typical). As with other FTDI USB device controllers, the USB protocol is fully taken care of by the IC itself, so that such activities do not waste valuable resources on the system microcontroller, which could lead to performance compromises. The FT4222H’s integrated OTP memory allows the storage of USB vendor ID (VID), product ID (PID), device serial number and product description string information, along with various other items of vendor-specific data. The battery charger detection function furnishes USB peripherals that incorporate this IC with the ability to detect connection with a dedicated charging port (DCP) and thereby benefit from more rapid charging. FTDI proprietary, royalty-free USB drivers for the Windows operating system mean that engineers can avoid the inconvenience of having to develop their own drivers. The FT4222H is offered in a compact, Pb-free 32-pin QFN package and an operational temperature range that spans from -40°C to 85°C makes this device suitable for use in demanding industrial environments.

Features

Applications

• PC Motherboards
• 0 to 10V Dimming Luminaires
• Dimmable LED Power Supply
• Dimming Control Devices
• Commercial LED Lighting
• Smart LED Lighting
• Portable Appliances
• Battery-Operated Devices
• Cellular Data Devices
• Factory Automation and Process Controls