FT311D - USB 2.0 full speed Host IC to connect an Android platform to peripheral hardware

Key features:

• USB 2.0 Full Speed Host.
• Hardware selectable interfaces - GPIO, UART, PWM, I²C Master, SPI Slave or SPI Master.
• USB ERROR indicator pin.
• Single power supply operation at 3.3V.
• Internal 1.8V LDO regulator.
• Internal memory for storing configurable strings - allows Android to automatically detect the device and application to use.
• Extended operating temperature range : -40°C to 85°C.
• Available in Pb-free QFN-32 and LQFP-32 packages (RoHS compliant).

• 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.
• I²C master interface 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).

• Connect an Android device to a motor controller
  • Motor/robotic device control
• Connect an Android device to an external microcontroller
  • Debug
  • Firmware upgrades
• Connect an Android device to external sensors
  • Fleet management
• Connect an Android device to external storage
  • Data logging
• Connect an Android device to a printer
  • Print photos from a phone or tablet

• FTDI FT311D USB Android Host IC

  Specifications for the FTDI FT311D USB Android Host IC

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• FTDI Royalty Free VCP & D2XX Drivers

  Access FTDI's comprehensive sets of royalty-free VCP and D2XX drivers via this link.

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• FTDI Application Note 208: Java Applications for FT311D

  Sample FTDI JAVA applications to use the FT311D as a data bridge from an Android USB port to alternative interfaces, supporting Open Accessory Mode (3.1 onwards)

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• FTDI FT311D Android Programmers Guide

  This Guide specifies commands and data protocol for communication between Android devices and the FT311D chip.

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• FTDI White Paper 001 - Connecting Peripherals to an Android Platform

  This white paper describes some of the options for connecting peripheral accessories to Android OS based tablets/phones. The focus is on the use of the Android Open Accessory Initiative.

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Development Module

The UMFT311EV Development Module uses the FT311D to enable engineers to design for USB accessories connecting to Android platforms via Android Open Accessory mode (typically 3.1 onwards).

GPIO Shield Board

The UMFT311GP Shield Board can be used together with the UMFT311EV Development Module to to provide faster testing. It has push button switches which function as user GPIO inputs and LED's to provide visual indication of the GPIO output.