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copyright ? 201 3 future technology devices international limited 1 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 future technology devices international ltd . FT311D ( usb android host ic ) the ft 311d 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 brid g e the usb port to six user selectable interface types and h as 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 . ? i 2 c 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. ? + 3 v 3 single supply operation with 5v tolerant inputs . ? usb 2.0 full speed compatible. ? e xtended operating temperature range ; - 40 ? ? ? available in compact pb - free 32 pin lqf p 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 re produced in any material or electronic form without the prior written consent of the copyright holder. this product and its documen tation 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 fa ilure 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 injur y. 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, uni t 1, 2 seaward place, centurion business park , glasgow g41 1hh united kingdom. scotland registered company number: sc136640
copyright ? 201 3 future technology devices international limited 2 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 1 typical applications ? 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 1.1 part numbers part number package ft31 1 d - 32q 1c - x 32 pin qfn FT311D - 32l 1c - x 32 pin lqfp note: packing codes for x is: - r : taped and reel, qfn 3,000pcs per reel , lqfp 1500 pcs per reel . - (no suffix) : tray packing , 26 0pcs per tray qfn, 250 pcs per tray lqfp for example: ft 311d - 32 q 1c - r is 3 ,000pcs qfn taped and reel packing 1.2 usb compliant at the time of writing this datasheet, the ft 311d was still to complete usb compliancy testing.
copyright ? 201 3 future technology devices international limited 3 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 2 ft 311d block diagram figure 2 . 1 FT311D block diagram for a description of each fun ction please refer to section 4. u a r t s p i m a s t e r p w m s s p i s l a v e g p i o s p e r i p h e r a l b u s u s b h o s t u s b d p u s b d m c n f g 0 c n f g 1 c n f g 2 u s b t r a n s c e i v e r i 2 c m a s t e r i n p u t / o u t p u t m u l t i p l e x e r
copyright ? 201 3 future technology devices international limited 4 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 table of contents 1 typical applications ................................ ................................ ...... 2 1.1 part numbers ................................ ................................ ...................... 2 1.2 usb comp liant ................................ ................................ .................... 2 2 FT311D block diagram ................................ ................................ . 3 3 devi ce pin out and signal description ................................ .......... 6 3.1 package symbol ................................ ................................ .................. 6 3.1.1 package pinout description ................................ ................................ ........................... 6 3.2 interface selection ................................ ................................ ............. 8 3.2.1 interface pinout ................................ ................................ ................................ ........... 8 4 function description ................................ ................................ ... 10 4.1 key features ................................ ................................ ..................... 10 4.2 functional block descriptions ................................ ........................... 10 4.2.1 peripheral interface modules ................................ ................................ ....................... 10 4.2.2 usb transceivers ................................ ................................ ................................ ....... 10 4.2.3 usb host ................................ ................................ ................................ .................. 10 4.3 i/o peripherals signal names ................................ .......................... 10 4.4 default mode strings ................................ ................................ ........ 11 5 peripheral interfaces ................................ ................................ . 12 5.1 general purpose input output ................................ .......................... 12 5.2 uart interface ................................ ................................ ................. 12 5.2.1 uart mode signal descriptions ................................ ................................ ................... 13 5.3 pulse width modulation ................................ ................................ .... 14 5. 4 i2c ................................ ................................ ................................ .... 14 5.5 serial peripheral interface C spi modes ................................ ........... 15 5.5.1 spi clock phase modes ................................ ................................ ............................... 15 5.5.2 serial peripheral interface C slave ................................ ................................ ............... 16 5.5.3 serial peripheral interface C spi master ................................ ................................ ........ 18 6 usb error detection ................................ ................................ .... 20 7 absolute maximum ratings ................................ ........................ 21 7.1 dc characteristics ................................ ................................ ............. 22 7.2 esd and latch - up specifications ................................ ....................... 23 8 application examples ................................ ................................ . 24 8.1 usb to gpio converter ................................ ................................ ..... 24 8.2 usb to uart converter ................................ ................................ ..... 25 8.3 usb to pwm converter ................................ ................................ ..... 26 8.4 usb to i 2 c (master) converter ................................ .......................... 27
copyright ? 201 3 future technology devices international limited 5 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 8.5 usb to spi (slave) converter ................................ ........................... 28 8.6 usb to spi (master) converter ................................ ......................... 29 9 package parameters ................................ ................................ ... 30 9.1 FT311D package markings ................................ ............................... 30 9.1.1 qfn - 32 ................................ ................................ ................................ .................... 30 9.1.2 lqfp - 32 ................................ ................................ ................................ ................... 31 9.2 FT311D package dimensions ................................ ............................ 32 9.2.1 qfn - 32 package dimensions ................................ ................................ ....................... 32 9.2.2 lqfp - 32 package dimensions ................................ ................................ ...................... 33 9.3 solder reflow profile ................................ ................................ ........ 34 10 contact information ................................ ................................ ... 36 appendix a C references ................................ ................................ ........... 37 useful utilities and examples firmware ................................ ...................... 37 appendix b - list of figures and tables ................................ ..................... 38 appendix c - revision history ................................ ................................ .... 40
copyright ? 201 3 future technology devices international limited 6 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 3 device pin out and signal description 3.1 package symbol figure 3 . 1 qfn schematic symbol note the pinout is the same for the qfn and lqfp packages. 3.1.1 package pinout description note: # denotes an active low signal. pin no. name type description 2 3.3v vregin power input 3v3 supply to ic internal 1v8 regulator 3 1.8v vcc pll in power input 1v8 supply to ic core 1 3, 22, 28 vccio power input 3v3 supply for the io cells 7 vregout power output 1v8 output . may be used as input source for pin 3. 1,6, 16, 19,27 gnd power input 0v ground input. table 3 . 1 power and ground
copyright ? 201 3 future technology devices international limited 7 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 pin no. name type description 1 7 usb d p input /output usb data signal pl us. 18 usb dm input /output usb data signal min us. 4 xtin input input to 12mhz oscillator cell. connect 12mhz crystal across pins 4 and 5. 5 xtout output output from 12mhz oscillator cell. connect 12mhz crystal across pins 4 and 5. 8 test 1 input for internal use. pull to gnd 9 test2 input for factory use. pull to 3v3. 10 reset# input reset input (active low). 20, 21 nc - no connect pins. leave unterminated. 11 test0 output active low signal that may be used to control a switch for enabling power to the usb port pin 1 (vbus) . 12 cnfg0 input configuration pin 0 used to select between gpio,uart,pwm,i 2 c and spi. pull to ground = logic 0(no leave open = logic 1 (internal pull up is present) 2 c and spi. pull to ground = logic 0( leave open = logic 1 (internal pull up is present) 2 c and spi. pull to ground = logic 0(no leave open = logic 1 (internal pull up is present) table 3 . 2 common function pins pin no. name type description 23 iobus0 input /output i/o signal. function depends on cnfg pin setting. see table 3.4 24 iobus1 input /output i/o signal. function depends on cnfg pin setting. see table 3.4 25 iobus2 input /output i/o signal. function depends on cnfg pin setting. see table 3.4 26 iobus3 input /output i/o signal. function depends on cnfg pin setting. see table 3.4 29 iobus4 input /output i/o signal. function depends on cnfg pin setting. see table 3.4 30 iobus5 input /output i/o signal. function depends on cnfg pin setting. see table 3.4
copyright ? 201 3 future technology devices international limited 8 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 pin no. name type description 31 iobus6 input /output i/o signal. function depends on cnfg pin setting. see table 3.4 table 3 . 3 interface pins notes: 1 . when used in input mode, the input pins are pulled to vccio via internal 75 k ( approx. ) resistors. 3.2 interface selection the FT311D has multiple interfaces available for connecting to external devices. the resources available are gpio, uart, pwm, i2c(master), spi(slave) and spi(master). the selection of what interface the user requires is configured using the cnfg0, cnfg1 and cnfg2 input pins as per table 3.4. cnfg2 cnfg1 cnfg0 mode gnd gnd gnd gpio gnd gnd leave open uart gnd leave open gnd pwm gnd leave open leave open i2c (master) leave open gnd gnd spi (slave) leave open gnd leave open spi (master) table 3 . 4 cbus configuration control note 1: when left open the pin is a logic 1 . note 2: mode 110 is a factory test mode and should not be used. note 3: mode 111 will default to gpio mode. 3.2.1 interface pinout the actual pinout for each interface type is detailed in table 3.5 pin no pin name gpio uart pwm i2c (master) spi (slave) spi (master) 23 iobus0 gpio0 uart_txd pwm0 i2c_clk - - 24 iobus1 gpio1 uart_rxd pwm1 i2c_data - - 25 iobus2 gpio2 uart_rts # pwm2 - - - 26 iobus3 gpio3 uart_cts # pwm3 - spi_s_ss0 spi_m_ss0
copyright ? 201 3 future technology devices international limited 9 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 pin no pin name gpio uart pwm i2c (master) spi (slave) spi (master) 29 iobus4 gpio4 uart_tx _active - - spi_s_clk spi_m_clk 30 iobus5 gpio5 - - - spi_s_mosi spi_m_mosi 31 iobus6 gpio6 - - - spi_s_miso spi_m_miso table 3 . 5 i/o configuration
copyright ? 201 3 future technology devices international limited 10 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 4 function description ft311 d is ftdis android accessory mode integrated circuit device or android host . the ft311 d behaves like a bridge between an android device and the various i/o available. selection o f various modes is performed using cnfgx pins. 4.1 key features easy to use android accessory ic translating the device port of the android tablet into either gpio, uart, pwm, i 2 c master, spi slave or spi master capabilities 4.2 functional block descriptions the following paragraphs de scribe each function within ft311 d . please refer to the block diagram shown in figure 2 . 1 . 4.2.1 peripheral interface modules ft311 d has six per ipheral interface modules available for selection . full descriptions of each module are provided in section 5 . ? gpio - general p urpose i/o pins ? uart ? pwm ? i2c master ? spi slave ? spi master 4.2.2 usb transceivers usb transceiver cells provide the physical usb device interface supporting usb 1.1 and usb 2.0 standards. low - speed and full - speed usb data rates are supported. the output driver provide s + 3.3v level slew rate control signalling, whilst a differential receiver and two single ended receivers provide usb data in , se 0 and usb reset condition detecti on. these cells also include integrated internal pull - down resistors as required for host mode. 4.2.3 usb host t hese blocks handle the parallel - to - serial and serial - to - paral lel conversion of the usb p hysical layer . this includ es bit stuffing , crc generation . 4.3 i/o peripherals signal names peripheral signal name outputs inputs description gpio gpio 7 7 general purpose i/o uart uart_txd 1 0 transmit asynchronous data output uart_rts# 1 0 request to send control output uart_rxd 0 1 receive asynchronous data input uart_cts# 0 1 clear to send control input uart_tx_active 0 1 uart active signal (typically used with rs485) pwm pwm 4 0 pulse width modulation i 2 c i2c_scl 0 1 i2c bus serial clock line - slave i2c_sda 1 1 i2c bus serial data line - slave spi slave spi_s _clk 0 1 spi clock input
copyright ? 201 3 future technology devices international limited 11 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 peripheral signal name outputs inputs description spi_s _ss# 0 1 spi slave select input spi_s _mosi 1 1 spi master out serial in spi_s_miso 1 0 spi master in slave out spi master spi_m_clk 1 0 spi clock input C table 4 . 1 i / o peripherals signal names note: # is used to indicate an active low signal. 4.4 default mode strings when the usb port is connected to the android usb po r t, the android platform will determine which application to load based on the strings read from the FT311D. t hese strings are configurable with a windows utility : ft311cofiguration.exe available for download from the ftdi website at: http://www.ftdichip.com/support/softwareexamples/android/ft311configuration_v010100.zip default values for the s trings are set in the device as per table 4 . 2 descriptor string default value manufacturer ftdi model (depends on gpio mode selection): gpio ftdigpiodemo uart ftdiuartdemo pwm ftdipwmdemo i 2 c ftdii2cdemo spi slave ftdispislavedemo spi master ftdispimasterdemo version 1.0 serial vinculumaccessory1 description url http://www.ftdichip.com table 4 . 2 default descriptor strings
copyright ? 201 3 future technology devices international limited 12 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 5 peripheral interfaces in addition to the usb host, ft311 d contains the following peripheral interfaces: ? general purpose input output (gpio) ? universal asynchronous receiver transmitter (uart) ? four pulse width modulation blocks (pwm) ? i 2 c master ? serial peripheral interface (spi) s lave ? serial peripheral interface ( spi ) master note: only one interface may be selected at any time. the modes are selected by setting the cnfgx pins. the following sections describe each peripheral in detail. 5.1 general purpose input output ft311 d provides up to 7 configurable input/output pins . all p ins are independently configurable to be ei ther inputs or outputs. 5.2 uart interface when the peripheral interface is configured in uart mode, the interface implements a standard asynchronous serial uart port with flow control , for example rs232/422/485 . the uart can support b aud rates from 300 baud to 6 m baud . data transfer uses nrz (non - return to zer o) data format consisting of 1 s tart bit, 7 or 8 data bits, an optio nal parity bit, and one or two s top bits. when transmitting the data bits, the least significant bit is transmitted first. transmit and receive waveforms are illustrated in figure 5 - 1 and figure 5 - 2 : figure 5 - 1 uart receive waveform figure 5 - 2 uart transmit waveform baud rate (default =9600 baud) , flow control settings (default = rts/cts) , number of data bits (default=8) , parity (default is no parity) and number of s top bits (default=1) are all configurable from the android application . please refer to http://www.ftdichip.com/support/documents/progr amguides/ft31xd_android_programmer_guide(ft_0 00532).pdf f or further details. uart_tx_active is transmit enable, this output may be used in rs485 designs to control the transmit of the line driver.
copyright ? 201 3 future technology devices international limited 13 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 5.2.1 uart mode signal descriptions the uart signals are fixed on the i/o pins. table 5 . 1 uart interface , details the pins for each of the uart signals. pin no name type description 23 uart_txd output transmit asynchronous data output 24 uart_rxd input receive asynchronous data input 25 uart_rts# output request to send control output 26 uart_cts# input clear to send control input 29 uart_tx_active output transmit enable (typically used for rs485 designs) table 5 . 1 uart interface note: the FT311D has to enumerate the android device before receiving data from the uart device. this can be implemented by disconnecting the uart txd signal of external uart device connected to the FT311D uart_rxd signal until after the FT311D has established the usb link with android device. the connection sequence should be: 1. connect FT311D to android and complete enumeration. 2. connect the txd of uart device to FT311Ds rxd then start to receive data. there are two methods to implement this function: 1.when FT311D connects to the android device and enumeration is completed, the usb_error# will become logic 0 (default logic 1). this signal can be used to control the ttl gate (74lvc2g241, 74lvc1g125 or others) on/off such that the txd/rxd lines are connected/disconnected. figure 5 - 3 uart rxd and txd connection gated by enumeration
copyright ? 201 3 future technology devices international limited 14 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 2. if the uart device has an enable pin( active high enable) such as on the gps module, the usb_error# can also be used. the usb_error# pin may be inverted with an npn bjt then connected to the enable pin of the gps module. figure 5 - 4 inverting gate control signal to enable gps module(active high enable) 5.3 pulse width modulation ft311 d provides 4 pulse width modulation (pwm) outputs. these can be used to generate pwm signals which can be used to control motors, dc/dc converters, ac/dc s upplies, etc. further information is available in an application note an_140 - vinculum - ii pwm example . the features of the pwm module are as follows: - 4 pwm outputs - variable frequency - variable duty cycle 5.4 i2c i 2 c (inter integrated circuit) is a multi - master serial bus invented by philips. i 2 c uses two bi - directional open - drain wires called serial data (sda) and serial clock (scl). common i2c bus speeds are the 100 kbit/s standard mode (sm), 400 kbit/s fast mode (fm), 1 mbit/s fast mode plus (fm+), and 3.4 mbit/s high speed mode (hs) an i 2 c bu s node can operate either as a master or a slave: ? master node C issues the clock and addresses slaves ? slave node C receives the clock line and address. ft311 d provides an i2c master interface for connection to other i2c slave interfaces up to 125kbit/s. the master is initially in master transmit mode by sending a start bit followed by the 7 - bit address of the slave it wishes to communicate with, which is final ly followed by a single bit representing whether to write(0) to , or read(1) from the slave. if the slave exists on the bus then it will respond with an ack bit (active low for acknowledged) for that address. the master then continues in either transmit or receive mode (according to the read/write bit it sent), and the slave continues in its complementary mode (receive or transmit, respectively). the address and the data bytes are sent most significant bit first. the start bit is indicated by a high - to - low t ransition of sda with scl high; the stop bit is indicated by a low - to - high transition of sda with scl high. if the master ha s to write to the slave then it repeatedly sends a byte with the slave sending an ack bit. (in this situation, the master is in mast er transmit mode and the slave is in slave receive mode.) if the master ha s to read from the slave then it repeatedly receives a byte from the slave, the master sending an ack bit after every byte but the last one. (in this situation, the master is in mast er receive mode and the slave is in slave transmit mode.) the master then ends transmission with a stop bit, or it may send another start bit if it wishes to retain control of the bus for another transfer (a "combined message").
copyright ? 201 3 future technology devices international limited 15 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 i2c defines three basic typ es of message, each of which begins with a start and ends with a stop: ? single message where a master writes data to a slave; ? single message where a master reads data from a slave; ? combined messages, where a master issues at least two reads and/or writes to one or more slaves in a combined message, each read or write begins with a start and the slave address. after the first start, these are also called repeated start bits; repeated start bits are not preceded by stop bits, which is how slaves know the next transfer is part of the same message. please refer to the i 2 c specification for more information on the protocol. 5.5 serial peripheral interface C spi modes the serial peripheral interface bus is an industry standard communications interface. devices communi cate in master / slave mode, with the master initiating the data transfer. ft311 d has one master module and one slave module. both the spi master and slave module has four signals C clock, slave select, mosi (master out C slave in) and miso (master in C slave out). table 5 . 2 lists how the signals are nam ed in each module. module signal name type description spi slave spi_s _clk input clock input spi_s _ss# input active low slave select input spi_s _mosi input master out serial in spi_s _miso output master in slave out spi master spi_m_clk output clock output C master spi_m_mosi output master out slave in - master spi_m_miso input master in slave out - master spi_m_ss_0# output active low slave select 0 from master to slave 0 table 5 . 2 spi signal names the spi slave protocol by default does not support any form of handshaking . it is simply transferring 8 bit data. 5.5.1 spi clock phase modes spi interface has 4 unique modes of clock phase (cpha) and clock polarity (cpol), known as mode 0, mode 1, mode 2 and mode 3. table 5 . 3 summarizes these modes and available interface and figure 5 - 5 is the function timing diagram. for cpol = 0, the base (inactive) level of sclk is 0. in this mode: ? when cpha = 0, data is clocked in on the rising edge of sclk, and data is clocked out o n the falling edge of sclk. ? when cpha = 1, data is clocked in on the falling edge of sclk, and data is clocked out on the rising edge of sclk for cpol =1, the base (inactive) level of sclk is 1. in this mode: ? when cpha = 0, data is clocked in on the falling edge of sclk, and data is clocked out on the rising edge of sclk ? when cpha =1, data is clocked in on the rising edge of sclk, and data is clocked out on the falling edge of sclk.
copyright ? 201 3 future technology devices international limited 16 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 mode cpol cpha 0 0 0 1 0 1 2 1 0 3 1 1 table 5 . 3 - clock phase/polarity modes figure 5 - 5 - spi cpol cpha f unc tion 5.5.2 serial peripheral interface C slave figure 5 - 6 spi slave block diagram ft311 d has a n spi slave module that uses four wire interfaces: mosi, miso, clk and ss#. an spi transfer can only be initiated by the spi master and begins with the slave select signal being asserted. this is followed by a data byte being clocked out with the master supplying clk. the master always supplies the first byte, which is called a command byte. after this the desired number of data bytes are transferred before the transaction i s terminated by the master de - asserting slave select. an spi master is able to abort a transfer at any time by de - asserting its ss # output. this will cause the slave to end its current transfer and return to idle state. e x t e r n a l - s p i m a s t e r f t 3 1 1 - s p i s l a v e c l k s s # m i s o m o s i
copyright ? 201 3 future technology devices international limited 17 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 5.5.2.1 spi slave signal descriptions pin no name type description 29 spi_s0_clk input slave clock input 30 spi_s0_mosi input master out slave in synchronous data from master to slave 31 spi_s0_miso output master in slave out synchronous data from slave to master 2 6 spi_s0_ss# input slave select table 5 . 4 data and control bus signal mode options - spi slave interface note: the FT311D has to enumerate the android device before receiving data from the spi master device. this can be implemented by disconnecting the ss# signal of spi host device until after the FT311D has established the usb link with android device. the connection sequence should be: 1.connect FT311D to android and complete enumeration. 2.connect the ss# of spi hos t to FT311Ds ss# then start to communication. there is a method to implement this function: 1.when FT311D connects to the android device and enumeration is completed, the usb_error# will become logic 0 (default logic 1). this signal can be used to contro l the ttl gate (74lvc2g241, 74lvc1g125 or others) on/off such that the both ss# lines are connected/disconnected. figure 5 - 7 spi slave ss gated by enumeration
copyright ? 201 3 future technology devices international limited 18 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 5.5.3 serial peripheral interface C spi master figure 5 - 8 spi master block diagram the spi master interface is used to interface to applications such a s real t i me clocks and audio codecs . the spi master provide s the following features: ? synchronous serial data link. ? full an d half duplex data transmission. ? serial clock with programmabl e frequency, polarity and phase. ? one slave select output. 5.5.3.1 spi master signal descriptions. table 5 . 5 shows the spi master signals and the pins pin no name type description 29 spi_m_clk output spi master clock input 30 spi_m_mosi output master out slave in synchronous data from master to slave 31 spi_m_miso input master in slave out synchronous data from slave to master 2 6 spi_m_ss_0# output active low slave select 0 from master to slave table 5 . 5 spi master signal names the main purpose of the spi master block is to transfer data between an external spi interface and the ft311 d . an spi master interface transfer can only be initiated by the spi master and begins with the slave select signal being asserted. this is followed by a data byte being c locked out with the master supplying sclk. the master typically supplies the first byte, which is called a command byte. after this the desired f t 3 1 1 - s p i m a s t e r e x t e r n a l - s p i s l a v e c l k s s # m i s o m o s i
copyright ? 201 3 future technology devices international limited 19 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 number of data bytes are transferred before the transaction is terminated by the master de - asserting slave select. however the FT311D is simply a data pipe and no command is required by the FT311D itself. any command protocol would be defined by the android application. the spi master will transmit on mosi as well as receive on miso during every data stage. figure 5 - 9 typical spi master timing and table 5 . 6 spi master timing show an example of this. figure 5 - 9 typical spi master timing table 5 . 6 spi master timing time description minimum typical maximum unit t1 sclk period 39.68 41.67 ns t2 sclk high period 19.84 20.84 21.93 ns t3 sclk low period 19.84 20.84 21.93 ns t4 sclk driving edge to mosi/ss - 1.5 3 ns t5 miso setup time to sample sclk edge 6.5 ns t6 miso hold time from sample sclk edge 0 ns
copyright ? 201 3 future technology devices international limited 20 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 6 usb error detection pin 32 (iobus7) of the device is provided to indicate a problem has occurred with the usb connection. typical errors include usb device not supported , which would occur if the usb port was connected to a non - android class device port e.g. the FT311D is not designed to host memory sticks or printers etc. usb devi ce not responding and hub not su pported would be reported also if connected to a hub. the signal states are as follows: pin state definition logic 0 device connect ed to usb and functional logic 1 device not connected one 50ms logic 0 pulse device not responding. this pulse occurs at plug - in and then the signal returns to logic 1 . this then repeats at a 1 second interval. two 50ms logic 0 pulses device not supported. these pulses occur at plug - in and then the signal returns to logic 1. this then repeats at a 1 second interval. three 50ms logic 0 pulses hub not supported. these pulses occur at plug - in and then the signal returns to logic 1. this then repeats at a 1 second interval. table 6 . 1 error detection
copyright ? 201 3 future technology devices international limited 21 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 7 absolute maximum ratings the absolute maximum ratings for ft311 d are shown in table 7 . 1 . these are in accordance with the absolute maximum rating system (iec 60134). exceeding these may cause permanent damage to the device. parameter value unit storage temperature - 65c to 150c degrees c floor life (out of bag) at factory ambient ( 30c / 60% relative humidity) 168 hours (ipc/jedec j - std - 033a msl level 3 compliant)* hours ambient temperature (power applied) - 40c to 85c degrees c. vcc supply voltage 0 to +3.63 v vcc_io 0 to +3.63 v vcc_pll_in 0 to + 1.98 v dc input voltage - usbdp and usbdm - 0.5 to +(vcc +0.5) v dc input voltage - high impedance bidirectional - 0.5 to +5.00 v dc input voltage - all other inputs - 0.5 to +(vcc +0.5) v dc output current - outputs 4 ma dc output current - low impedance bidirectional 4 ma table 7 . 1 absolute maximum ratings * if devices are stored out of the packaging beyond this time limit the devices should be baked before use. the devices should be ramped up to a temperature of 125c and baked for up to 17 hours.
copyright ? 201 3 future technology devices international limited 22 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 7.1 dc characteristics dc characteristics (ambient temperatur e - 40?c to +125 ?c) parameter description minimum typical maximum units conditions vcc1 vcc operating supply voltage 2.97 3.3 3.63 v vcc2 vccio operating supply voltage 2.97 3.3 3.63 v vcc_pll vcc_pll operating supply voltage 1.62 1.8 1.98 v icc1 operating supply current 48mhz 25 ma normal operation icc2 operating supply current 128 a usb suspend table 7 . 2 operating voltage and current parameter description minimum typical maximum units conditions voh output voltage high 2.4 v i source = 8ma vol output voltage low 0.4 v i sink = 8ma vin input switching threshold 1.5 v table 7 . 3 i/o pin characteristics parameter description minimum typical maximum units conditions uvoh i/o pins static output ( high) 2.8 v uvol i/o pins static output ( low ) 0.3 v uvse single ended rx threshold 0.8 2.0 v ucom differential common mode 0.8 2.5 v
copyright ? 201 3 future technology devices international limited 23 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 uvdif differential input sensitivity 0.2 v udrvz driver output impedance 3 6 9 ohms table 7 . 4 usb i/o pin (usbdp, usbdm) characteristics parameter description minimum typical maximum units conditions vcck power supply of internal core cells and i/o to core interface 1.62 1.8 1.98 v 1.8v power supply vcc18io power supply of 1.8v osc pad 1.62 1.8 1.98 v 1.8v power supply t j operating junction temperature - 40 25 125 c i in input lea kage current - 10 1 10 a i in = vcc18io or 0v i oz tri - state output leakage current - 10 1 10 a table 7 . 5 crystal oscillator 1.8 volts dc characteristics 7.2 esd and latch - up specifications description specification human body mode (hbm) 2000v machine mode (mm) 200v charged device mode (cdm) 500v latch - up > 200ma table 7 . 6 esd and latch - up specifications
copyright ? 201 3 future technology devices international limited 24 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 8 application examples the following sections illustrate possible applications of the ft 311d . 8.1 usb to gpio converter figure 8 . 1 application example showing usb to gpio converter this example shows the cnfgx pins set for mode 000 C 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. f t 3 1 1 d 1 2 3 4 5 s h i e l d f e r r i t e b e a d g n d g n d 3 v 3 g n d v c c i o v r e g o u t u s b d m u s b d p 1 v 8 p l l v c c i n 3 v 3 a g n d g n d r e s e t # 1 0 0 n f 1 0 0 n f 4 . 7 u f + i o b u s 4 4 7 0 r v c c 3 v 3 r e g u l a t o r 5 v 2 7 r 2 7 r 1 0 0 n f 3 v 3 i o b u s 0 i o b u s 1 i o b u s 2 i o b u s 3 i o b u s 5 i o b u s 6 i o b u s 7 4 7 0 r 4 7 0 r 4 7 0 r g n d g n d 4 7 p f 4 7 p f c n f g 0 c n f g 1 c n f g 2 g n d
copyright ? 201 3 future technology devices international limited 25 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 8.2 usb to uart converter figure 8 . 2 application example showing usb to uart converter this example shows the cnfgx pins set for mode 001 - uart. the uart signals are at 3v3 level and may be used to drive directly into a fpga or mcu with a 3v3 interface, or could be level shifted with an rs232, rs422 or rs485 transceiver. the uart_tx_active signal is used mostly with r s485 transceivers to enable the transmit drivers. the unused pins may be left unterminated. f t 3 1 1 d 1 2 3 4 5 s h i e l d f e r r i t e b e a d g n d g n d 3 v 3 g n d v c c i o v r e g o u t u s b d m u s b d p 1 v 8 p l l v c c i n a g n d g n d r e s e t # 1 0 0 n f 1 0 0 n f 4 . 7 u f + i o b u s 4 v c c 3 v 3 r e g u l a t o r 5 v 2 7 r 2 7 r 1 0 0 n f 3 v 3 i o b u s 0 i o b u s 1 i o b u s 2 i o b u s 3 i o b u s 5 i o b u s 6 i o b u s 7 g n d 4 7 p f 4 7 p f c n f g 0 c n f g 1 c n f g 2 g n d m c u / f p g a u a r t _ t x d u a r t _ r x d u a r t _ r t s # u a r t _ c t s # u a r t _ t x _ a c t i v e 3 v 3 1 0 k
copyright ? 201 3 future technology devices international limited 26 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 8.3 usb to pwm converter figure 8 . 3 application example showing usb to pwm converter this example shows the cnfgx pins set for mode 010 C pulse width modulation (pwm). pwm channel 0 has been wired to a motor controller. this is typical of applications with robotic arms or moving mach inery. pwm channel 3 has been connected to an led. this allows the led to either flash or by altering the pwm switching frequency the controller can act as a dimmer switch to the led. the unused channels may be left unterminated. f t 3 1 1 d 1 2 3 4 5 s h i e l d f e r r i t e b e a d g n d g n d 3 v 3 g n d v c c i o v r e g o u t u s b d m u s b d p 1 v 8 p l l v c c i n a g n d g n d r e s e t # 1 0 0 n f 1 0 0 n f 4 . 7 u f + i o b u s 4 v c c 3 v 3 r e g u l a t o r 5 v 2 7 r 2 7 r 1 0 0 n f 3 v 3 i o b u s 0 i o b u s 1 i o b u s 2 i o b u s 3 i o b u s 5 i o b u s 6 i o b u s 7 g n d 4 7 p f 4 7 p f c n f g 0 c n f g 1 c n f g 2 g n d m o t o r c o n t r o l l e r p w m _ 0 p w m _ 1 p w m _ 2 p w m _ 3 3 v 3 4 7 0 r 3 v 3 1 0 k
copyright ? 201 3 future technology devices international limited 27 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 8.4 usb to i 2 c (master) converter figure 8 . 4 application example showing usb to i 2 c (master) converter this example shows the cnfgx pins set for mode 011 C i 2 c (master). only two signal lines are required for i 2 c interfacing. the clock is an output from the FT311D while the data line is bi - directional. examples of i2c peripherals include eeproms, real time clocks ( rtc) and audio or video codecs. the unused pins may be left unterminated. f t 3 1 1 d 1 2 3 4 5 s h i e l d f e r r i t e b e a d g n d g n d 3 v 3 g n d v c c i o v r e g o u t u s b d m u s b d p 1 v 8 p l l v c c i n a g n d g n d r e s e t # 1 0 0 n f 1 0 0 n f 4 . 7 u f + i o b u s 4 v c c 3 v 3 r e g u l a t o r 5 v 2 7 r 2 7 r 1 0 0 n f 3 v 3 i o b u s 0 i o b u s 1 i o b u s 2 i o b u s 3 i o b u s 5 i o b u s 6 i o b u s 7 g n d 4 7 p f 4 7 p f c n f g 0 c n f g 1 c n f g 2 g n d i 2 c p e r i p h e r a l e . g . m e m o r y , r t c , c o d e c s i 2 c _ d a t a 3 v 3 i 2 c _ c l k 1 0 k 1 0 k 1 0 k 3 v 3
copyright ? 201 3 future technology devices international limited 28 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 8.5 usb to spi (slave) converter figure 8 . 5 application example s howing usb to spi (slave) converter this example shows the cnfgx pins set for mode 100 C spi (slave). the external spi master controls the slave select line and the clock to the FT311D. spi_s_mosi is the FT311D data input line which may be most or least s ignificant bit first. spi_s_miso is the FT311D data output line which may be most or least significant bit first. example spi masters include mcus and fpgas the unused pins may be left unterminated. f t 3 1 1 d 1 2 3 4 5 s h i e l d f e r r i t e b e a d g n d g n d 3 v 3 g n d v c c i o v r e g o u t u s b d m u s b d p 1 v 8 p l l v c c i n a g n d g n d r e s e t # 1 0 0 n f 1 0 0 n f 4 . 7 u f + i o b u s 4 v c c 3 v 3 r e g u l a t o r 5 v 2 7 r 2 7 r 1 0 0 n f 3 v 3 i o b u s 0 i o b u s 1 i o b u s 2 i o b u s 3 i o b u s 5 i o b u s 6 i o b u s 7 g n d 4 7 p f 4 7 p f c n f g 0 c n f g 1 c n f g 2 g n d s p i m a s t e r e . g . m c u , f p g a 3 v 3 1 0 k s p i _ s _ c l k s p i _ s _ s s # s p i _ s _ m i s o s p i _ s _ m o s i
copyright ? 201 3 future technology devices international limited 29 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 8.6 usb to spi (master) converter figure 8 . 6 application example showing usb to spi (master) converter this example shows the cnfgx pins set for mode 101 C spi (master). the FT311D spi master controls the slave select line and the clock to the external spi slave. spi_m_mosi is the FT311D data output line which may be most or least significant bit first. spi_m_miso is the FT311D data input line which may be most or least signif icant bit first. example spi slave devices include memory, rtc, and codec devices. the unused pins may be left unterminated. f t 3 1 1 d 1 2 3 4 5 s h i e l d f e r r i t e b e a d g n d g n d 3 v 3 g n d v c c i o v r e g o u t u s b d m u s b d p 1 v 8 p l l v c c i n a g n d g n d r e s e t # 1 0 0 n f 1 0 0 n f 4 . 7 u f + i o b u s 4 v c c 3 v 3 r e g u l a t o r 5 v 2 7 r 2 7 r 1 0 0 n f 3 v 3 i o b u s 0 i o b u s 1 i o b u s 2 i o b u s 3 i o b u s 5 i o b u s 6 i o b u s 7 g n d 4 7 p f 4 7 p f c n f g 0 c n f g 1 c n f g 2 g n d s p i s l a v e e . g . e e p r o m , r t c , c o d e c s 3 v 3 1 0 k s p i _ m _ c l k s p i _ m _ s s # s p i _ m _ m i s o s p i _ m _ m o s i
copyright ? 201 3 future technology devices international limited 30 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 9 package parameters ft311 d is available in rohs compliant packages, qfn package (32qfn) and an lqfp package (32lqfp) . the package s are lead (pb) free and use a green compound. the package is fully compliant with european union directive 2002/95/ec. the mechanical drawing s of the packages are shown in sections 9.2 - all dimensions are in millimetres. the solder reflow profile for all packages can be viewed in section 9.3 . 9.1 ft311 d package markings 9.1.1 qfn - 32 an example of the markings on the qfn package are shown in figure 9 - 1 . the ftdi part number is too long for the 32 qfn package so in this case the last two digits are wrapped down onto the date code line. figure 9 - 1 qfn package markings 1c should be printed on line 4, then a space and then the date code. 1. yyww = date code, where yy is year and ww is week number 2. marking alignment should be centre justified 3. laser marking should be used 4. all marking dimensions should be marked proportionally. marking font should be using unisem standard font (roman simplex) ft di ii xxxxxxxx FT311D - 32q line 1 C ftdi logo l ine 4 C revision and date code l ine 2 C wafer lot number 1 32 l ine 3 C ftdi part number 1c yyww
copyright ? 201 3 future technology devices international limited 31 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 9.1.2 lqfp - 32 an example of the markings on the lqfp package are shown in figure 9 - 2 . figure 9 - 2 lqfp package markings notes: 1. yyww = date code, where yy is year and ww is week number 2. marking alignment should be centre justified 3. laser marking should be us ed 4. all marking dimensions should be marked proportionally. marking font should be using unisem standard font (roman simplex) ft d i xxxxxxxxxx FT311D - l 1c line 1 C ftdi logo l ine 4 C date code l ine 2 C wafer lot number 1 32 l ine 3 C ftdi part number yyww
copyright ? 201 3 future technology devices international limited 32 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 9.2 ft311 d package dimensions 9.2.1 qfn - 32 package dimensions figure 9 - 3 qfn - 32 package dimensions note: dimensions are in mm note: the centre pad should be conne c ted to the gnd plane for improved thermal conduction and noise immunity. 1 x x x x x x x x f t d l 1 c y y w w f t 3 1 1 d - 3 2 q 1
copyright ? 201 3 future technology devices international limited 33 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 9.2.2 lqfp - 32 package dimensions figure 9 - 4 lqfp - 32 package dimensions note: dimensions are in mm f t d l x x x x x x x x 1 c y y w w f t 3 1 1 d - 3 2 l p i n # 1 p i n # 3 2
copyright ? 201 3 future technology devices international limited 34 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 9.3 solder reflow profile figure 9 - 5 all packages reflow solder profile
copyright ? 201 3 future technology devices international limited 35 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 profile fea ture pb free solder process (green material) snpb eutectic and pb free (non green material) solder process average ramp up rate (t s to t p ) 3c / second max. 3c / second max. preheat - temperature min (t s min.) - temperature max (t s max.) - time (t s min to t s max) 150c 200c 60 to 120 seconds 100c 150c 60 to 120 seconds time maintained above critical temperature t l : - temperature (t l ) - time (t l ) 217c 60 to 150 seconds 183c 60 to 150 seconds peak temperature (t p ) 260c see figure 9 - 5 time within 5c of actual peak temperature (t p ) 30 to 40 seconds 20 to 40 seconds ramp down rate 6c / second max. 6c / second max. time for t= 25c to peak temperature, t p 8 minut es max. 6 minutes max. table 9 . 1 reflow profile parameter values snpb eutectic and pb free (non green material) package thickness volume mm3 < 350 volume mm3 >=350 < 2.5 mm 235 +5/ - 0 deg c 220 +5/ - 0 deg c 2.5 mm 220 +5/ - 0 deg c 220 +5/ - 0 deg c pb free (green material) = 260 +5/ - 0 deg c table 9 . 2 package reflow peak temperature
copyright ? 201 3 future technology devices international limited 36 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 10 contact information head office C glasgow, uk future technology devices international limited unit 1, 2 seaward place, centurion business park glasgow g41 1hh united kingdom tel: +44 (0) 141 429 2777 fax: +44 (0) 141 429 2758 e - mail (sales) sales 1 @ftdichip.com e - mail (support) support 1 @ftdichip.com e - mail (general enquiries) admin1@ftdichip.com branch office C taipei, taiwan future technology devices international limited (taiwan) 2f, no. 516, sec. 1, neihu road taipei 114 taiwan, r.o.c. tel: +886 (0) 2 8791 3570 fax: +886 (0) 2 8791 3576 e - mail (sales) tw.sales1@ftdichip.com e - mail (support) tw.support1@ftdichip.com e - mail (general enquiries) tw.admin1@ftdichip.com branch office C tigard , oregon, u sa future technology devices international limited (usa) 7 130 sw fir loop tigard , or 97 223 usa tel: +1 (503) 547 0988 fax: +1 (503) 547 0987 e - mail (sales) us.sales@ftdichip.com e - mail (support) us.support@ftdichip.com e - mail (general enquiries) us.admin@ftdichip.com branch office C shanghai, china room 1103, no. 666 west huaihai road, shanghai, 200052 china tel: +86 21 62351596 fax: +86 21 62351595 e - mail (sales) cn.sales@ftdichip.com e - mail (support) e - mail (general enquiries ) cn.support@ftdichip.com cn.admin@ftdichip.com
copyright ? 201 3 future technology devices international limited 37 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 appendix a C references useful application notes http://www.ftdichip.com/documents/white_papers/wp_001_connecting_peripherals_to_an_android_plat form.pdf http://www.ftdichip.com/support/documents/programguides/ft31xd_android_programmer_guide(ft_0 00532).pdf us eful utilities and examples fir mware http://www.ftdichip.com/support/softwareexamples/android/ft311configuration_v010100.zip http://www.ftdichip.com/android/sampleapps.zip
copyright ? 201 3 future technology devices international limited 38 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 a ppendix b - list of figures and tables list of figures figure 2.1 FT311D block diagram ................................ ................................ ................................ ... 3 figure 3.1 qfn schematic symbol ................................ ................................ ................................ .. 6 figure 5 - 1 uart receive waveform ................................ ................................ .............................. 12 figure 5 - 2 uart transmit waveform ................................ ................................ ............................ 12 figure 5 - 3 uart rxd and txd connection gated by enumeration ................................ ..................... 13 figure 5 - 4 inverting gate control signal to enable gps module(active high enable) ............................ 14 figure 5 - 5 - spi cpol cpha function ................................ ................................ ............................ 16 figure 5 - 6 spi slave block diagram ................................ ................................ ............................... 16 figure 5 - 7 spi slave ss gated by enumeration ................................ ................................ ............... 17 figure 5 - 8 spi master block diagram ................................ ................................ ............................. 18 figure 5 - 9 typical spi master timing ................................ ................................ ............................ 19 figure 8.1 application example showing usb to gpio converter ................................ ....................... 24 figure 8.2 application example showing usb to uart converter ................................ ...................... 25 figure 8.3 application example showing usb to pwm converter ................................ ....................... 26 figure 8.4 application example showing usb to i 2 c (master) converter ................................ ............. 27 figure 8.5 application example showing usb to spi (slave) converter ................................ .............. 28 figure 8.6 application example showing usb to spi (master) converter ................................ ............ 29 figure 9 - 1 qfn package markings ................................ ................................ ................................ . 30 figure 9 - 2 lqfp package markings ................................ ................................ ................................ 31 figure 9 - 3 qfn - 32 package dimensions ................................ ................................ ........................ 32 figure 9 - 4 lqfp - 32 package dimensions ................................ ................................ ....................... 33 figure 9 - 5 all packages reflow solder profile ................................ ................................ ................. 34 list of tables table 3.1 power and ground ................................ ................................ ................................ .......... 6 table 3.2 common function pins ................................ ................................ ................................ .... 7 table 3.3 interface pins ................................ ................................ ................................ ................. 8 table 3.4 cbus configuration control ................................ ................................ ............................. 8 table 3.5 i/o configuration ................................ ................................ ................................ ............ 9 table 4.1 i/o peripherals signal names ................................ ................................ ......................... 11 table 4.2 default descriptor strings ................................ ................................ .............................. 11 table 5.1 uart interface ................................ ................................ ................................ ............ 13 table 5.2 spi signal names ................................ ................................ ................................ ....... 15 table 5.3 - clock phase/polarity modes ................................ ................................ ....................... 16 table 5.4 data and control bus signal mode options - spi slave interface ................................ ...... 17 table 5.5 spi master signal names ................................ ................................ ............................... 18 table 5.6 spi master timing ................................ ................................ ................................ ........ 19 table 6.1 error detection ................................ ................................ ................................ ............ 20 table 7.1 absolute maximum ratings ................................ ................................ .......................... 21 table 7.2 operating voltage and current ................................ ................................ ....................... 22
copyright ? 201 3 future technology devices international limited 39 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 table 7.3 i/o pin characteristics ................................ ................................ ................................ ... 22 table 7.4 usb i/o pin (usbdp, usbdm) characteristics ................................ ................................ .. 23 table 7.5 crystal oscillator 1.8 volts dc characteristics ................................ ................................ .. 23 table 7.6 esd and latch - up specificatio ns ................................ ................................ .................... 23 table 9.1 reflow profile parameter values ................................ ................................ ................... 35 table 9.2 package reflow peak temperature ................................ ................................ ................ 35
copyright ? 201 3 future technology devices international limited 40 ds _ FT311D usb android host ic datasheet version 1.2 document no.: ft_000660 clearance no.: ftdi# 305 appendix c - revision history document title: usb android host ic FT311D document reference no.: ft_000660 clearance no.: ftdi# 305 product page: http://www.ftdichip.com/ftproducts.htm document feedback: send feedback version 1.0 initial release july 2012 version 1.1 vbusctrl# pin removed from figs 8.1 to 8.6 june 2013 version 1.2 note added for uart and spi slave enumeration nove mber 2013

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