Copyright © Future Technology Devices International Limited

1

FT4222H USB2.0 TO QUADSPI/I2C BRIDGE IC

1.3

Document No.: FT_001011 Clearance No.: FTDI#405

Future Technology

FT4222H

Bridge IC)

interface Device Controller with the

following advanced features:



with a variety of configurations



Entire USB protocol handled on the chip.



On-chip OTP memory for USB Vendor ID (VID),

Product ID (PID), device serial number,

product description string and various other

vender specific data.



Configurable

industry

standard

SPI

Master/Slave interface controller



Support configurable data width with single,

dual, quad data width transfer mode in SPI

master



SCK can support up to 30MHz in SPI master



Up to 53.8Mbps data transfer rate in SPI

master with quad mode transfer



Support single bit data transfer with full-duplex

transfer in SPI Slave



Support up to 4 channels slave selection

control pins in SPI master application



Configurable

Master/Slave

interface

specification.



bus Specification, standard mode (SM) up to

100Kbit/s, fast mode (FM) up to 400Kbit/s,

Fast mode plus (FM+) up to 1Mbit/s, and High

Speed mode (HS) up to 3.4 Mbit/s



Configurable GPIOs can be easily controlled by

software applications via USB bus



USB Battery Charger Detection.



Device supplied pre-programmed with unique

USB serial number.



USB Power

Configurations; supports bus-

powered, self-powered and bus-powered with

power switching.



+5V USB VBUS detection engine



Integrated 5V-3.3V-1.8V regulators.



True 3.3V CMOS drive output and TTL input.

(operates down to 1V8 with external pull-ups)



Configurable I/O pin output drive strength; 4

mA(min) and 16 mA(max)



Integrated power-on-reset circuit.



USB2.0 Low operating and suspend current;

68mA (active-typ) and 375µA (suspend-typ).



UHCI / OHCI / EHCI / XHCI host controller

compatible.



FTDI’s royalty-free Direct (D2XX) drivers for

Windows eliminate the requirement for USB

driver development in most cases.



Extended operating temperature range; -40⁰C

to 85⁰C.



Available in compact Pb-free 32 Pin VQFN

packages (RoHS compliant).

Neither the whole nor any part of the information contained in, or the product described in this manual, may be adapted or reproduced

in any material or electronic form without the prior written consent of the copyright holder. This product and its documentation are

supplied on an as-is basis and no warranty as to their suitability for any particular purpose is either made or implied. Future Technology

Devices International Ltd will not accept any claim for damages howsoever arising as a result of use or failure of this product. Your

statutory rights are not affected. This product or any variant of it is not intended for use in any medical appliance, device or system in

which the failure of the product might reasonably be expected to result in personal injury. This document provides preliminary

information that may be subject to change without notice. No freedom to use patents or other intellectual property rights is implied by

the publication of this document. Future Technology Devices International Ltd, Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow

G41 1HH United Kingdom. Scotland Registered Company Number: SC136640