DS_FT311D Datasheet, PDF(23/40 Page) Future Technology Devices International Ltd. – 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.

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DS_FT311D Datasheet, PDF (23/40 Pages) Future Technology Devices International Ltd. – 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.

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DS_FT311D USB ANDROID HOST IC Datasheet

Version 1.0

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

8 Application Examples

The following sections illustrate possible applications of the FT311D.

8.1 USB to GPIO Converter

P Channel Power

MOSFET

3V3

REGULATOR

0.1uF

5V_SW

Switched 5V Power to

USB

0.1uF

SHIELD

Ferrite

Bead

5V_SW

27R

47pF

100nF

GND

3V3

100nF

4.7uF

VCC

VCCIO

RESET#

USBDM

USBDP

VBUSCTRL#

IOBUS0

IOBUS1

IOBUS2

CNFG2

CNFG1

CNFG0

IOBUS3

FT311D

IOBUS4

IOBUS5

IOBUS6

1V8 PLL VCC IN

VREGOUT

IOBUS7

100nF

GND

3V3

470R 470R 470R 470R

GND

Figure 8.1 Application Example showing USB to GPIO Converter

This example shows the CNFGx pins set for mode 000 â GPIO.

IOBUS0-3 are configured as outputs by the Android application to control the LEDs.

IOBUS4-6 pins are configured as inputs to allow the buttons to control actions in the Android application.

Power to the USB port is enabled by the VBUSCTRL# signal

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