Copyright © 2012 Future Technology Devices International Limited

1

Version 1.0

Document No.: FT_000660 Clearance No.: FTDI# 305

Future Technology Devices

FT311D

(USB Android Host IC)

The FT311D is a Full Speed USB host

specifically

targeted

at

providing

access to peripheral hardware from an

Android platform with a USB device

port. The device will bridge the USB

port to six user selectable interface

types and has the following advanced

features:



Single chip USB to selectable interface.



Entire USB protocol handled on the chip. No

USB specific firmware programming required.



Interface options selectable via 3 mode select

pins.



7 GPIO lines interface option



Basic UART interface with RXD, TXD, RTS, CTS

pins option.



TX_ACTIVE signal for controlling transceivers

on RS485 interfaces.



4 PWM channels option.





SPI Slave interface option supporting modes 0,

1, 2 and 3 with MSB/LSB options



SPI Master interface option supporting modes

0, 1, 2 and 3 with MSB/LSB options.



USB error indicator pin



Suitable for use on any Android platform

supporting Android Open Accessory Mode

(Typically

3.1

onwards,

however

some

platforms may port Open Accessory Mode to

version 2.3.4)



12MHz oscillator using external crystal.



Integrated power-on-reset circuit.



+3V3 Single Supply Operation with 5V tolerant

inputs.



USB 2.0 Full Speed compatible.



Extended operating temperature range; -40⁰C

to 85⁰C.



Available in compact Pb-free 32 Pin LQFP and

QFN packages (both 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