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use of ftdi devices in life support and/or safety applicat ions is entirely at the user?s risk, and the user agrees to defend, indemnify and hold harmless ftdi from any and all damages, claims, suits or expense resulting from such use. umft221xe version 1.0 d ocument reference no.: ft_ 000651 clearance no.: ftdi# 293 future technology devices international ltd datasheet umft221xe usb to 8 - bit spi/ft1248 development module um ft221x e is a usb to 8 - bit spi/ ft1248 dip module with a 0. 6 row pitch . 1 introduction the um ft221x e is a development module for ftdi?s ft221x q, one of the devices from ftdi?s range of usb to serial data interface integrated circuit devices. ft221x is a usb to spi/ ft1248 int erface with a battery charg er detection feature, which can allow batteries to be charged with a higher current from a dedicated charger port (without the ft221x being enumerated). in addition, asynchronous and synchronous bit bang interface modes are avail able. the internally generated clock (6mhz, 12mhz and 24mhz) can be brought out on the cbus pin to be used to drive a microprocessor or external logic. the um ft221x e is a module which is desi gned to plug into a standard 0.6 wide 20 pin dip socket. all co mponents used, including the ft221x q are pb - free (rohs compliant). 1.1 features the u mft 2 2 1x e is fitted with a ft221x q; all the features of the ft221x can be utilized with the um ft221x e . for a full list of the ft221x ?s features please see the ft221x data sheet which can be found by clicking here . in addition to the features listed in the ft221x datasheet, the um ft221x e has the following features: ? small pcb assembly mo dule design ed to fit a standard 15.24mm (0.6 ) wide 20 pin dip socket. pins are on a 2.54mm (0.1) pitch. ? on board usb ?mini - b? socket allows module to be connected to a pc via a standard a to mini - b usb cable. ? functionally configurable using jumpers . t he default jumper setup enables the module to function without peripheral wires or application board. other configurations enable external power supply options and variation of logic reference levels.
2 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 table of contents 1 introduction ................................ ................................ ................... 1 1.1 features ................................ ................................ ................................ ........ 1 2 driver support ................................ ................................ ................ 3 3 ordering information ................................ ................................ ..... 3 4 umft221xe signals and configurations ................................ ......... 4 4.1 umft221xe pin out ................................ ................................ ...................... 4 4.2 signal descriptions ................................ ................................ ....................... 5 4.3 cbus signal options ................................ ................................ ..................... 6 5 module configurations ................................ ................................ .... 7 5.1 jumper configuration options ................................ ................................ ....... 7 5.2 bus powered configuration ................................ ................................ ........... 8 5.3 sel f powered configuration ................................ ................................ ........... 9 5.4 usb bus powered with power switching configuration .............................. 10 5.5 variable io voltage supply ................................ ................................ ......... 11 5.6 3.3v voltage supply ................................ ................................ .................... 12 5.7 configuring the mtp rom ................................ ................................ ............ 12 6 module dimensi ons ................................ ................................ ...... 13 7 umft221xe module circuit schematic ................................ .......... 14 8 internal mtp rom configuration ................................ .................. 15 9 contact information ................................ ................................ ..... 16 appendix a - list of figures and tables ................................ ................................ . 17 appendix b C revision history ................................ ................................ .............. 18
3 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 2 driver support royalty - free virtual com port (vcp) drivers for: ? windows 7 32,64 - bit ? windows vista ? windows xp 32,64 - bit ? windows xp embedded ? windows ce.net 4.2 , 5.0 and 6.0 ? mac os os - x ? linux 3.0 and greater ? android ro yalty - free d2xx direct drivers (usb drivers + dll s/w interface): ? windows 7 32,64 - bit ? windows vista ? windows xp 32,64 - bit ? windows xp embedded ? windows ce.net 4.2, 5.0 and 6.0 ? mac os os - x ? linux 3.0 and greater ? android the drivers listed above are all ava ilable to download for free from www.ftdichip.com . various 3rd party drivers are also available for various other operating systems - visit www.ftdichip.com for details. 3 ordering information module code utilised ic code description umft201xe - 01 ft201xq usb to i 2 c evaluation module. 0.6 row pitch, standard dip headers. umft221xe - 01 ft221xq usb to 8 - bit spi/ft1248 evaluation module. 0.6 row pitch, standard dip headers. umft231xe - 01 ft231xq usb to full - handshake uart evaluatio n module. 0.6 row pitch, standard dip headers. umft240xe - 01 ft240xq usb to 8 - bit 245 fifo evaluation module. 0.6 row pitch, standard dip headers.
4 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 4 um ft221x e signals and configurations 4.1 um ft221x e pin out figure 4 . 1 C module pin out figure 4.1 illustrates the sig nals available on the dip pins. j 2 - 1 C s l d v b u s v c c i o 7 g n d r e s e t # c b u s 3 m i s o s s # j 2 - 1 0 C s c l k g n d C j 1 - 1 3 v 3 o u t v c c i o i o 6 i o 5 i o 4 i o 3 i o 2 i o 1 i o 0 C j 1 - 1 0
5 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 4.2 signal descriptions pin no. name type description j1 - 1, j2 - 5 gnd pwr module ground supply pins j1 - 2 3v3out power input/ output 3.3v output from integrated l.d.o. regulator. this pin is decoupled with a 100nf capacitor to ground on the pcb module. the prime purpose of this pin is to provide the 3.3v supply that can be used internally. for power supply configuration details see section 5 . j1 - 3 vccio power input +1.8v to +3.3v supply to the uart interface and cbus i/o pins. for power supply configuration details see section 5 . j1 - 4 io6 i/o ft1248 bi - directional data bit 6. j1 - 5 io5 i/o ft1248 bi - directional data bit 5. j1 - 6 io4 i/o ft1248 bi - directional data bit 4. j1 - 7 io3 i/o ft1248 bi - directional data bit 3. j1 - 8 io2 i/o ft1248 bi - directional data bit 2. j1 - 9 i o1 i/o ft1248 bi - directional data bit 1. j1 - 10 io0 i/o ft1248 bi - directional data bit 0 . j2 - 1 sld gnd usb cable shield. connected to gnd via a 0 ohm resistor. j2 - 2 vbus power output 5v power output from the usb bus. for a low power usb bus powered desig n, up to 100ma can be sourced from the 5v supply and applied to the usb bus. a maximum of 500ma can be sourced from the usb bus in a high power usb bus powered design. currents up to 1a can be sourced from a dedicated charger and applied to the usb bus. j 2 - 3 vcc power input 5v power input for ft221x. for power supply configuration details see section 5 . j2 - 4 io7 i/o ft1248 bi - directional data bit 7. j2 - 6 reset# input ft221x active low reset line. configured with an on board p ull - up and recommended filter capacitor. j2 - 7 cbus3 i/o configurable cbus i/o pin. function of this pin is configured in the device internal mt p rom. see cbus signal options, table 4 . 2 . j2 - 8 miso output master in serial out. used to provide status information to the ft1248 interface master. j2 - 9 ss# input ft1248 chip select input to enable the device interface. active low logic. j2 - 10 sclk input ft1248 clock input from ft1248 interface master table 4 . 1 C module pin out description
6 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 4.3 cbus signal options the following options can be config ured on the cbus i/o pins. these options are all configured in the internal mt p rom using the utility software ft_prog, which can be downloaded from the www.ftdichip.com . the default configuration is described in section 9 . cbus signal option available on cbus pin description tristate cbus3 io pad is tri - stated drive _ 1 cbu s3 output a constant 1 drive _ 0 cbus3 output a constant 0 pwren# cbus3 output is low after the device has been configured by usb, then high during usb suspend mode. this output can be used to control power to external logic p - channel logic level mosfet sw itch. note: this function is driven by an open - drain to ground with no internal pull - up, this is specially designed to aid bat tery charging applications. um ft221x e connects an on board 47 k pull - up on all cbus and dbus lines . txled# cbus3 transmit data led drive C open drain pulses low when transmitting data via usb. rxled# cbus3 receive data led drive C open drain pulses low when receiving data via usb. tx&rxled# cbus3 led drive C open drain pulses low when transmitting or rece iving data via usb. s leep # cbus3 goes low during usb suspend mode. typically used to power down an external logic . de - activate s leep # option for when connected to a dedicated charger port, this can be selected when configuring the mt p rom. when this option is en abled sleep # is driven high when ft221x is connected to a dedicated charger port. clk24 mhz cbus3 24 mhz clock output.** clk12 mhz cbus3 12 mhz clock output.** clk6 mhz cbus3 6 mhz clock output.** gpio cbus3 cbus bit bang mode option. allows up to 4 of the cbus pins to be used as general purpose i/o. configured individually for cbus0, cbus1, cbus2 and cbus3 in the internal mt p rom. a separate application note, an232r - 01 , available from ftdi website ( www.ftdichip.com ) describes in more detail how to use cbus bit bang mode. bcd _charger cbus3 battery c harge detect indi cates when the device is connected to a dedicated battery charger host. active high output. note: requires a 10k pull - down to remove power up toggling. bcd _charger # cbus3 active low bcd charger , driven by an open drain to ground with no internal pull - up (4.7k on board pull - up present). bitbang_wr# cbus3 synchronous and asynchronous bit bang mode wr# strobe output. bitbang_rd# cbus3 synchronous and asynchronous bit bang mode rd# strobe output. vbus sense cbus3 input to detect when vbus is present. time stamp cbus3 toggle signal which changes state each time a usb sof is received keep_awake# cbus3 active low input, prevents the chip from going into suspend. table 4 . 2 C cbus signal options **when in usb sus pend mode the outputs clocks are also suspended.
7 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 5 module configurations 5.1 jumper configuration options jumper no. setting status description jp1 shorted default connects internal 3.3v regulator to vccio. this restricts signal drive to only 3.3v level signals . jp1 opened non - default disconnects internal 3.3v regulator connection to vccio. this mode allows for the supply of 1.8v - 3.3v power from an external power supply, thus allows the processing of signals with logic levels between 1.8v and 3.3v. vccio can be adjusted to match the interface requirements of external circuitry. table 5 . 1 C jumper jp1 pin description jumper no. setting status description jp2 shorted default connects vbus to vcc. this mode is know n as usb powered mode. supply. this mode is known as self powered mode. table 5 . 2 C jumper jp2 p in description note: there should never be more than one power output supplied to the same net. if jp2 is fitted when an external power supply is applied a direct short between two power supplies will be formed, this can result in damage to the umft2 2 1xe m odule and the target circuit.
8 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 5.2 bus powered configuration figure 5 . 1 C bus powered configuration a bus powered configuration draws its power from the usb host/h ub. the um ft221x e is configured by default to be in bus powered mode. figure 5 . 1 illustrates the um ft221x e module in a typical usb bus powered design configuration. by default 3v3out is connected to vccio, and vbus is connected to vcc . for a bus power configuration power is supplied from the usb vbus : + 5v vbus power is sourced from the usb bus and is connected to the ft221x power input (vcc) + 3.3v power is sourced from the ft221x ?s voltage regulator output and is connected to the ft221x io port?s power input (vccio). interfacing the um ft221x e module to a microcontroller (mcu), or other logic devices for bus powered configuration is done in exactly the same way as a self - powered configuration (see section 5. 3 ), except that it is po ssible for the mcu or external device to take its power supply from the usb bus (either the 5v from the usb pin, or 3.3v from the 3v3out pin). g n d j u m p e r j p 1 - c l o s e d g n d j u m p e r j p 2 - c l o s e d a l t e r n a t i v e c o n n e c t i o n a l t e r n a t i v e c o n n e c t i o n c u r r e n t f l o w b u s p o w e r e d m o d e s e l f - s o u r c e d 3 v 3 t t l m o d e v c c i o 3 v 3 o u t v b u s v c c
9 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 5.3 self powered configuration figure 5 . 2 C self - powered configuration a self - powered configuration operates on the principle of drawing power from an external power supply, as oppose to drawing power from the usb host. in this configuration no current is drawn from the usb bus. figure 5 . 2 illustrates the um ft221x e in a typical usb self - powered configuration. in this case the jumper connection of jp1 is removed, which allows 5v power to be supplied to the module vcc pins from an external source . vccio can to be powered from 3v3out or the vcc of an external source . for a self - powered configuration it is necessary to prevent current from flowing back to the usb data lines when the connected usb host or hub has powered down. to carry out this function the um ft221x e uses an on - board voltage divider network connected to the usb power bus and reset# pin. this operates on the principle that when no power is supplied to the vbus line , the ft221x will automatically be held in reset by a weak pull - down , when power is applie d the voltage divider will apply a weak 3.3v pull - up . driving a level to the reset# pin of the um ft221x e will override the effect of th is voltage divider. when the ft221x is in reset the usb dp signal pull - up resistor connected to the data lines is disconn ected and no current can flow down the usb lines. an example of interfacing the ft221x in ft1248 1 - bit mode is illustrated in figure 5 . 2 . this example shows the wire configuration of the transfer and handshake lines. this example also illustrate s that a voltage other than 3.3v can be supplied to the ft221x ?s io port, this feature is described further and for bus powered mode in section 5.5 . alternatively both the ft221x ?s io port and mcu can be powered from the 3v3out pin; this approach is described in section 5.4 . m c u v c c = 1 . 8 v C 3 . 3 v i o 0 s c l k s s # m i s o g n d v c c = 5 v i o 0 j u m p e r j p 2 - o p e n j u m p e r j p 1 - o p e n g n d s e l f p o w e r m o d e v a r i a b l e t t l m o d e v i o v c c i o 3 v 3 o u t v b u s v c c s c l k s s # m i s o o p t i o n i a l i o 1 o p t i o n i a l i o 2 o p t i o n i a l i o 3 o p t i o n i a l i o 4 o p t i o n i a l i o 5 o p t i o n i a l i o 6 o p t i o n i a l i o 7
10 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 5.4 usb bus powered with power switching configuration figure 5 . 3 C bus powered with p ower switching configuration usb bus powered mode is introduced in section 5.3 t his section describe s how to use bus - powered mode with a power switch. usb b us p owered circuits are required by usb compliance standards to consume less than 2.5m a (and less tha n 100ma when not enumerated and not suspended) when connected to a host or hub when in usb suspend mode. the pwren# cbus function can be used to remove power from external circuitry whenever the ft221x is not enumerated. (note: it is impossible to be in su spended mode when pwren# is low .) to implement a power switch using pwren#, configure a p - channel power mosfet to have a soft start by fitting a 10k pull - up, a 1k series resistor and a 100nf cap as shown in figure 5 . 3 . connecting the source of the p - channel mosfet to 3v3out instead of vbus can allow external logic to source 3.3v power from the ft221x without breaking usb compliancy. in this setup it is important that the vccio is not sourced from the drain of this mosfet, this is because the power used to drive the gate of this transistor is sourced from vccio. vccio should be connected directly to 3v3out for this setup to function effectively. it is also important that the external logic must and io core of the ft221x must not dra w more that 50ma, this is because the current limit of the internal 3.3v regulator is 50ma. m c u i o 0 s c l k s s # m i s o g n d i o 0 j u m p e r j p 2 - c l o s e d j u m p e r j p 1 - c l o s e d g n d b u s p o w e r e d m o d e s e l f - s o r c e d 3 . 3 v t t l m o d e v c c v c c i o 3 v 3 o u t v b u s v c c s c l k s s # m i s o o p t i o n i a l i o 1 o p t i o n i a l i o 2 o p t i o n i a l i o 3 o p t i o n i a l i o 4 o p t i o n i a l i o 5 o p t i o n i a l i o 6 o p t i o n i a l i o 7 s d g 1 k 0 . 1 u f 0 . 1 u f s o f t s t a r t c i r c u i t p w r e n # c b u s 3 p - c h a n n e l p o w e r m o s f e t 1 0 k
11 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 5.5 variable io voltage supply figure 5 . 4 C usb bus powered 3.3v logic drive the ft221x ca n process signals at cmos /ttl logic levels in the range of 1.8v to 3.3v. this section describes how to utilise this feature. figure 5 . 4 shows a configuration where the ft221x is interfaced to a device with ios operating in the ran ge of 1.8v - 3.3v. the io ports of this module need to be powered with a voltage level that is equal to the level of the signals it is processing. since the ft221x ?s embedded voltage regulator only outputs 3v3 the io ports will need to be powered from anot her power source when operating at voltage levels other than 3.3v. by default, a short is present between 3v3out (embedded voltage regulator) and vccio (io port?s power input) with the connection made by jp1. if an external power supply is used to power t he io ports this jumper needs to be open. the configuration described in this section can be implemented in either bus - powered mode or self - powered mode. note 1: the cbus and dbus pins are 5v tolerant; however these signals cannot drive signals at 5v ttl/ cmos. vccio is not 5v tolerant; applying 5v to vccio will damage the chip. note 2 : if power is applied to vccio and no power is applied to vcc all io s will be at an unknown state, this however will not damage the chip. the ft221x also has protective ci rcu itry to prevent the chip being damaged by a voltage discrepancy between vccio and the level of the signal being processed . note 3 : when using vccio less than 3v3 on a chip from ftdi?s x - chip range, it is recommended to use pull up resistors (47 k ) to vccio on the dat a lines, all of the umft2xxx e devices include an on - board pull - up for these lines. m c u v c c = 1 . 8 v C 3 . 3 v g n d i o 0 j u m p e r j p 2 - c l o s e d j u m p e r j p 1 - o p e n g n d v c c i o 3 v 3 o u t v b u s v c c i o 0 s c l k s s # m i s o s c l k s s # m i s o o p t i o n a l i o 1 o p t i o n a l i o 2 o p t i o n a l i o 3 o p t i o n a l i o 4 o p t i o n a l i o 5 o p t i o n a l i o 6 o p t i o n a l i o 7
12 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 5.6 3.3v voltage supply figure 5 . 5 C usb self powered 3.3v logic drive the ft221x can be p owered from a single 3.3v supply. this feature is an alternative to having the ft221x powered at 5v in standard self - powered configuration. the 3.3v self powered configuration is illustrated in figure 5 . 5 . note th at the 3.3v net is connected to vcc, vccio and 3v3out. 5.7 configuring the mt p rom the ft221x contains an embedded mt p rom . this can be used to configure the functions of each cbus pin, the current drive on each signal pin, current limit for the usb bus and t he other descriptors of the device. for details on using the mtp rom/eeprom programming utility ft_prog, please see the ft_prog user guide. when programm ing the mtp rom please note : i) one of the cbus pins can be configured as pwren# in the internal mtp rom . this can be used to switch the power supply to the external circuitry. ii) the max bus power setting of the mtp rom should specify the maximum current to be drawn from the usb host/hub when enumerated. for high - powered usb devices the current limit when enumerated is between 100ma and 500ma, for low - powered usb devices the current limit is 100ma. m c u v c c = 3 . 3 v g n d i o 0 o p t i o n a l i o 1 o p t i o n a l i o 2 o p t i o n a l i o 3 j u m p e r j p 2 - o p e n j u m p e r j p 1 - c l o s e d g n d v c c = 3 . 3 v v c c i o 3 v 3 o u t v b u s v c c i o 0 o p t i o n a l i o 4 o p t i o n a l i o 5 o p t i o n a l i o 6 o p t i o n a l i o 7 s c l k s s # m i s o s c l k s s # m i s o
13 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 6 module dimensions figure 6 . 1 C um ft221x e module dimensions all dimensions are given in millimetres. the um ft221x e module exclusively uses lead free components, and is fully compliant with european union directive 2002/95/ec. 3 4 . 5 1 . 6 9 . 2 3 2 . 5 1 9 . 2 4 2 . 5 4 1 . 8 2 . 3 1 5 . 2 4 5 . 8
14 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 7 um ft221x e modu le circuit schematic figure 7 . 1 C module circuit schematic
15 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 8 internal mt p rom configuration following a power - on reset or a usb reset the ft221x will scan its internal mt p rom and r ead the usb configuration descriptors stored there. the default values programmed into the internal mt p rom in the ft221x q used on the um ft221x e are shown i n table 8.1. parameter value notes usb vendor id (vid) 0403h ftdi default vid (hex) usb product u d (pid) 6015h ftdi default pid (hex) binary code decimal (bcd) 1000h ftdi default bcd (hex) serial number enabled? yes serial number see note a unique serial number is gene rated and programmed into the mt p rom during final test of the module. pull dow n i/o pins in usb suspend disabled enabling this option will make the device pull down on the i2c interface lines when the power is shut off (pwren# is high). manufacturer name ftdi product description umft22 1x e max bus power current 90ma power sour ce bus powered device type ft2 2 1x usb version 0200 returns usb 2.0 device description to the host. note: the device is a usb 2.0 full speed device (12mb/s) as opposed to a usb 2.0 high speed device (480mb/s). remote wake up enabled taking ri# low will wake up the usb host controller from suspend. high current i/os disabled enables the high drive level on the data and cbus i/o pins. load vcp driver enabled makes the device load the cvp driver interface for the device. cbus3 tristate table 8 . 1 C default internal mt p rom configuration the internal mt p rom in the ft221x can be programmed over usb using the utility program ft_prog. ft_ prog can be downloaded from the www.ftdichip.com . users who do not have their own usb vendor id but who would like to use a unique product id in their design can apply to ftdi for a free block of unique pids. contact ftdi support (s upport 1@ftdichip.com) for this service , also see tn_100 and tn_101 .
16 copyright ? 2012 future technology devices international limited umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 9 contact information head office C glasgow, uk future technology devices international limited unit 1, 2 seaward place, cen turion business park glasgow g 41 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) 2 879 1 3570 fax: +886 (0) 2 87 9 1 3576 e - mail (sales) tw.sales1@ftdichip.com e - mail (support) tw.support1@ftdichip.com e - mail (general enquirie s) tw.admin1@ftdichip.com branch office C hillsboro, oregon, usa future technology devices international limited (usa) 7235 nw evergreen parkway, suite 600 hillsboro, or 97123 - 5803 usa tel: +1 (503) 547 098 8 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 future technology devices international limited ( china ) room 1103, no. 666 west huaihai road, shanghai, 200052 china tel: +8 6 (0)21 6235 1596 fax: +86 (0)21 6235 1595 e - mail (sal es) cn.sales@ftdichip.com e - mail (support) cn.support@ftdichip.com e - mail (general enquiries) cn.admin@ftdichip.com web site http://ftdichip.com distributor and sales representatives please visit the sales network page of the ftdi web site for the contact details of our di stributor(s) and sales representative(s) in your country. system and equipment manufacturers and designers are responsible to ensure that their systems, and any future technology devi ces international ltd (ftdi) devices incorporated in their syste ms, meet all applicable safety, regulatory and system - level performance requirements. all application - related information in this document (including application descriptions, suggested ftdi devices and other materials) is provided for reference only. whil e ftdi has taken care to assure it is accurate, this information is subject to customer confirmation, and ftdi disclaims all liabili ty for system designs and for any applications assistance provided by ftdi. use of ftdi devices in life support and/or safet y applications is entirely at the users risk, and the user agrees to defend, indemnify and hold harmless ftdi from any and all damages, claims, suits or expense resulting from such use. this doc ument is subject to change without notice. no freedom to use patents or other intellectual property rights is implied by the publication of this document. neither the whole nor any part of the information contained in, or the product described in this document, may be adapted or reproduced in any material or e lectro nic form without the prior written consent of the copyright holder. future technology devices international ltd, unit 1, 2 seaward place, centurion busi ness park, glasgow g41 1hh, united kingdom. scotland registered company number: sc136640
copyright ? 201 2 future technology devices internationa l limited 17 umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 appendix a - l ist of figures and tables list of figures figure 4.1 C module pin out ................................ ................................ ................................ ........................... 4 figure 5.1 C bus powered configuration ................................ ................................ ................................ ...... 8 figure 5.2 C self - powered configuration ................................ ................................ ................................ ...... 9 figure 5.3 C bus powered with power switching configuration ................................ .............................. 10 figure 5.4 C usb bus powered 3.3v logic drive ................................ ................................ ....................... 11 figure 5.5 C usb self powered 3.3v logic drive ................................ ................................ ....................... 12 figure 6. 1 C umft221xe module dimensions ................................ ................................ ............................ 13 figure 7.1 C module circuit schematic ................................ ................................ ................................ ........ 14 list of tables table 4.1 C module pin out description ................................ ................................ ................................ ........ 5 table 4.2 C cbus signal options ................................ ................................ ................................ ................... 6 table 5.1 C jumper jp1 pin description ................................ ................................ ................................ ....... 7 table 5.2 C jumper jp2 pin description ................................ ................................ ................................ ....... 7 table 8.1 C default internal mtp rom configuration ................................ ................................ ................ 15
copyright ? 201 2 future technology devices internationa l limited 18 umft221xe version 1.0 document reference no.: ft_000651 clearance no.: ftdi# 293 appendix b C revision history document title: umft221xe document reference no.: ft_000651 clearance no.: ftdi# 293 product page: http://www.ftdichip.com/ft - x.htm document feedback: send feedback version 1.0 initial da tasheet created 1 3 /06/ 12

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