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

The FTDI FT311D Host IC enables engineers to connect an Android platform with a USB port (e.g. tablet or smartphone) to peripheral hardware via GPIO, UART, PWM, I²C Master, SPI Slave or SPI Master (Open Accessory Mode 3.1 onwards recommended).

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.

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).

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  • 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).
  • Connecting Android phones to USB accessories
  • Connecting Android tablets to USB accessories
  • Controlling instrumentation from Android devices
  • Home automation via Android devices
  • Data logging from USB accessories
  • Connecting serial printing devices to Android devices
Part Number Description Pack Size
FT311D-32L1C-R 32-pin LQFP single chip full speed USB Android Host IC, Rev. C FW Reel of 1,500
FT311D-32L1C-T
32-pin LQFP single chip full speed USB Android Host IC, Rev. C FW
Tray of 250
FT311D-32Q1C-R
32-pin QFN single chip full speed USB Android Host IC, Rev. C FW
Reel of 3,000
FT311D-32Q1C-T
32-pin QFN single chip full speed USB Android Host IC, Rev. C FW
Tray of 260
UMFT311EV Development module for FT311D Each
UMFT311GP FT311 GPIO Board Rev1.0 Each

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).

FTDI_UMFT311EV_200px

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.

FTDI_UMFT311GP_200px

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Last updated: 14 August 2013