Download DLP-USB232M User's Manual
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WW .100Y.C M.TW WW .100Y.C M.TW WW 00Y.CO .TW WW 00Y.CO .TW W W W T .1 W.1 Y.COM W M. OM W O W C . W C W Y W .T W Y. W .100 M.T .100 OM W M.T .100 O W C . O W W C W Y W WW .100Y. .TW DLP-USB232M WW .100Y.C M.TW M.TManual .100 User’s M O W O W C . O W WW .100Y .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O WW 00Y.CO .TW W WW 00Y.CO .TW C . W W W Y W W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .TW W.1 Y.COM W W W W W .T 00 W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .TW W.1 Y.COM W W W W W .T 00 W M DLP-USB232M-G USB –.1SERIAL W.1 Module M.T .100 OM UART Interface W .CO .TW O W W C . Y W C W . 0 Y W W W 0 0 Y W T . W 00 .10 W.1 Y.COM W M.T OM W OFTDI’s W W.1 Y C . W C The DLP-USB232M uses 2nd generation FT232BL (Lead-free) USB-UART chip that 0 adds extra .T W . Y W W W .T W .1 0 .TW 100 00 M . OM 1 W M . O W O W W functionality to its predecessor (the FT8U232AM) component count. 0Y.C .C external W and reduces C W . Y W W .TW W 0 0 Y W T . 1 0 W M . .T 1 00 M . O 1 W M . O W O HARDWAREWFEATURES W WW .100Y.C M.TW W Y.C WW .100Y.C M.TW 0 W T . 0 O 1 . OMSerial Data TransferWW • EEPROM WW via0USB WAsynchronous W .CO programmable Y.C • Single Chip USB on-board C W . 0 Y W W W 0 Y W T . W M.T .1 .T 10 00 M . O 1 W M . O W O W W& Modem Interface .C • Full Handshaking Signals PORT DRIVERS W ( VCP )W 0Y.C M.TW WW VIRTUAL .T 10for 00Y COM WW .100Y.C M.TW . 1 M . O W O 1 / 2 Stop Bits and WW- Windows W7 / 8 BitYData, W .CO Y.C • UART I/F Supports 98 andTWindows 98 W SEW C W . 0 Y W W 0 0 W . W M.T .1 .T 10 00 M . O 1 W M . O W C O W .C Odd/Even/Mark/Space/No WW .100Y. .TW WW - Windows .TW/ XP 00Y 2000M/ ME 0Y.C M.TW WW .10Parity M 1 . O W W O W ( TLL CO** TW • Data rate 300 => 3M WW .100Y.C M.TW W 0Y.CE Y.C) WW- Windows . 0 0 WW Baud T . 1 0 M . O W W OM W.1 ( RS232 CO OS-9TW • Data rate 300 => 1MWBaud - MAC OS-8 Y.and WW .100Y.C M.TW W 0 Y.C ) WW . 0 0 W T . 1 0 OM W. WW 00Y.CO .TW W.1 Y.COM ) W • Data rate 300 => 3M W -W MAC OS-X **.C W Y W 0 W T . 0 0 W Baud (.1RS422/RS485 T 0 .1 W.1 Y.COM W M. OM W O W W C . W C .Transmit.T • 384 Byte Receive Buffer Buffer - Linux 2.4000 and Y greater.TW W .T W 00 W WW/ 128.1Byte 00Y M .1 W.1 Y.COM M O W O W W C . for high data throughput D2XX Direct ) 100 Y Drivers.T+WDLL S/W Interface W WW( USB WW .100Y.C M.TW M.T . 100 M . O W O W C . O W C WSE Y.Windows • Adjustable RX buffer timeout - Windows and WW .100Y . WW 98 .T98 WW .100Y.C M.TW 100 M . OM W O W C . O W W C . Y W • Full hardware assisted hardware X-On - Windows /Y ME / XP .TW Y.C/ X-Off .TW WW 2000 WW or .100 M .100 OM W M .100 O W C . O W W C . Y W C W . 0 Y W handshaking or under development ] W [ ** = In 0 Wplanning .T WW .100Y .100 W.1 Y.CO M.T OM W O W W C . W C W Y W • In-built support for event characters line Y. break .TW W WW and .100 M.T .100 O W M .100 O W O W W C Y.C APPLICATION W 0 Y. W condition 0 0 WW AREAS T . 1 0 WW .100Y.C M.TW . W.1 Y.COM W WW 00Y.C W WW 00Y.CO .TW- USB - RS232 • Auto Transmit Buffer control forW RS485 0 WW Converters T . .10 W.1 Y. M .1 OM W O W W C . W C USB RS422 / RS485 Converters W . Y W W • Support for USB Suspend / Resume Y W .T W through .100 .TW 100 00SLEEP# M . 1 W M . O W O W .C Upgrading RS232 to USB WW .100Y and RI# pins WW Legacy .TW 00YPeripherals WW .100Y.C M.T-W 1 M . W O W WW Phone and Cordless USB data transfer W .CO .-TCellular Y.C WW .100 W • Support for high power USB Bus powered 0 Y W T . 0 0 WW devices 0 M .1 WW W.1 Y.COM cables WW 00Y.CO .TW and interfaces W W W through PWREN# pin W W .1 .T 1 00 OM W.designs WW W.1 Y.COM- Interfacing C . W MCU based to USB W Y W W W W • Integrated level converter on UART and .T 00 W control.100 .T W. OM W.1 YVideo O-MUSB Audio and LowW W W C . C W . Bandwidth data transfer W W W Y W signals for interfacing to 5v and 3.3v logic .T W .100 W M.T .100 OM W O W C . W C W - USB Y WW W data transfer 0 W T • Integrated 3.3v regulator for USB IO . 0 WW .100Y. - PDA T . 1 M . OM Smart Card Readers W WW 00Y.CO .TW W W • Integrated Power-On-Reset circuit WW .100Y.C- USB T . W.1 Y.COM OM W W C . W Set Top Box (S.T.B ) PC USB interface W Y W • Integrated 6MHz – 48Mhz clock multiplier PLL W .100 M.T .100 W O W W C Hardware - .USB • USB Bulk or Isocronous data transfer modes WW .TW ModemsW 00Y 1 M . O W .C Wireless USB WModems • 4.4v to 5.25v single supply operation WW .100- Y M.T O W - USB Y.CInstrumentation • UHCI / OHCI / EHCI host controller compatible WW .100 W - USB Bar Code Readers • USB 1.1 and USB 2.0 compatible WW • USB VID, PID , Serial Number and Product Description strings in external EEPROM Copyright © DLP Design 2002 Page 1 of 12 WW .100Y.C M.TW WW .100Y.C M.TW WW 00Y.CO .TW WW 00Y.CO .TW W W W T .1 W.1 Y.COM W M. OM W O W C . W C W Y W .T W Y. W .100 M.T .100 OM W M.T .100 O W C . O W W C W Y W WW .100Y. .TW DLP-USB232M WW .100Y.C M.TW M.TManual .100 User’s M O W O W C . O W WW .100Y .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O WW 00Y.CO .TW W WW 00Y.CO .TW C . W W W Y W W M .1 .T ENHANCEMENTS 00 W.1 Y.COM W WW 00Y.CO .TW W.1 Y.COM W W W W W of the .2nd .T 00 Wsection.1summarizes .T enhancements This the 00 W.1 Y.COM W W 1 Y.COM W OM W W W C . W W W WFT8U232AM .T W M.T .100 .T 100 00Y generation silicon from FTDI compared to its M . O 1 W M . O W C O W .C WW .100Y. .TW WW pin-out .TW 00Y 0Y.C details, WW For M .TW 1 0further predecessor. consult the device M . O 1 W M . O W O W WW .100Y.C M.TW W Y.C descriptions. WW .100Y.C M.TW 0 WWand functional T . 0 description 1 OM WW 00Y.CO .TW W. WW 00Y.CO .TW C . W W W Y W W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .TW W.1 Y.COM W W W W 0 W .T W Level .Converter T • Integrated on interface and W.10 100 W.1 Y.COM W M.UART OM O W W C . W C W . Y W .T W 00 W WW .100Y M.T .100 control signals W.1 Y.COM W M.T O W O W W C . W W W W 0Y Y.C WW M.T .100 M.T The previousW devices .would UART and control W.10 O 100 driveOthe W M.T O C . W W W Y W WW .100Y.C M.TW WW .100Y.C M.TW M.T .100 O W O W C signals at 5v CMOS logic levels. The new device has • Lower Suspend Current O W WW .100Y. .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W W a separate VCC-IO pinW allowing theO device to directly Integration of O RCCLK within the device .C W WWand .internal 00Y WW .100Y.C M.TW 1 WW .100Y.C M.TW M.T O W O W C interface to 3.3v and other logic families without the need design improvements reduce the suspend current of the O W WW .100Y. .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O 200uA ( excluding theW1.5k pull-up W to under for external level converter FT232BM .C O Wi.c.’s. W W 00Y WW .100Y.C M.TW 1 WW .100Y.C M.TW M.T . O W O W C . on USB DP ) in USB suspend mode. This allows greater O W WW .100Y .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W • Improved Power Management margin for peripherals to meet the USB Suspend W controlOfor USB Bus Y.C WW .current WW .100Y.C M.TW 100 WW .100Y.C M.TW M.T O W O W C . O Powered, high current devices limit of 500uA. W WW .100Y . WW .100Y.C M.TW WW .100Y.C M.TW OM W O W C . O W The previous devices had a USBEN pin, which became W C . Y W W WW .100Y WW .100Y.C M.TW .100 M.T OM W O W C . O W W active when the device was enumerated by USB. To • Support for USB Isocronous Transfers C . Y W C W . 0 Y W W 0 W WW .100Y M.T .100 W.1 Y.CO M.T Ousually W O W W C provide power control, this signal had to be externally While USB Bulk transfer is the best choice for . W C W Y W W W WW .100Y. .100 M.T .100 O W M.T O W O W W gating C gated with SLEEP# and RESET#.WThis is now data transfer, the scheduling time of the data is not . Y.C W W .C 0 Y W W 0 0 Y W T . 1 0 0 W T . . M .1 .10 OM WW 00Y.C W done on-chip. USBEN has now been replaced with the Wguaranteed. W ForW applications latency .COwhere.Tscheduling C W . Y W W 0 Y W W .T 00 .10 W.1 Y. OM Wdata OM W W.to1 directly C new PWREN# signal which can be used drive takes priority over integrity such as transferring . W C W . Y W W W .T W .100 .TW 100 00Y M . 1 W M . O W O W W .C data, .the a transistor or P-Channel MOSFET inW applications audio and lowWbandwidth video now Y W C .where TWnew deviceW 100 00Y W . .TW 1 00Y M . 1 W M . O W W .C transfer power switching of external circuitry is required. A newO offers an option WW .100 WofWUSB .Isocronous .TW via an option 00Y WW .100Y.C M.TW 1 M WW W gentlyY.CO bit inWthe EEPROM.WW .CO .TW EEPROM based option makes the device pull Y W W 0 W 0 W .1 .T 00 W.1 Y.COM W WW W.is1 Y.COM W W down its UART interface lines when the power W W W .T W 100 W. M.T .100 OM W.Buffer W W C . W shut off (PWREN# is High ). In this mode, any residualY.CO• Programmable Receive Timeout W Y W W W W .T W .100 W M.T .100 OM W O W C . W C voltage on external circuitry is bled to GND when power In the previous device, the receive buffer timeout Wused Y WW W 0 W T . 0 WW .100Y. T . 1 . M OM was fixed W WWthe receive is removed thus ensuring that external circuitryW remaining data from W .CtoOflush.T Y.C buffer.T W 0 Y W 0 0 W controlled 1 0 M . 1 M . O W O timeout. This timeout W .C by PWREN# resets reliably when power is restored. programmable WW is .now 00Y WW .100Y.atC16ms .TW 1 M W W over 1ms increments .COUSB .inTW WWfrom 1ms to 255ms, thus WW .100Y OM W W to be better optimized for protocols Y.C the.Tdevice WW .100allowing M O W 0Y.C faster response times from short data packets. WW .10requiring W WW Copyright © DLP Design 2002 Page 2 of 12 WW .100Y.C M.TW WW .100Y.C M.TW WW 00Y.CO .TW WW 00Y.CO .TW W W W T .1 W.1 Y.COM W M. OM W O W C . W C W Y W .T W Y. W .100 M.T .100 OM W M.T .100 O W C . O W W C W Y W WW .100Y. .TW DLP-USB232M WW .100Y.C M.TW M.TManual .100 User’s M O W O W C . O W WW .100Y .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O W Timing W Y.Cas Altera WW 00Y.CO FPGA • TXDEN fix as suppliedW byW vendors0such and Xilinx. C W . 0 W W Y W T . W M.T .1 .T 1 00 M . O 1 W M . O W C O been fixed to removeWthe external W .C Y. TXDEN has.C now WWnormally .TW ( i.e. W .TW device would 100 be un-configured 00Y TheMFPGA WW timing M . .TW 1 00Y . O 1 W M . O W .C W W delay that applications function W .CO required WW) at power-up. W for RS485 00Y 0Y.ChaveMno WW Tdefined . 1 0 WW was.1previously T M.T . . 1 00Y . O W M O W C W could W Y. at high baud TXDEN works correctly during a 0Y.C Bang .CO now .TWMode WW .TWsoftware onWthe PC 100 use Bit 0 Application WW rates. M . .TW 1 00Y M . O 1 W M . O W O W to the W W Y.C which transmit send-break configuration Wdata W 00FPGA Y.C WW .100Yto.Cdownload TW . 1 WW .100condition. T M.Twould . . M O W M O W C . O W Y then after Y.C it’s hardware WW TW .device WW .100define .TW function, 100 the FPGA WW .100Y.C M.TW M . M O W O W O Wswitch0back .C WFT232BMW • Improved configured can 0Y.Cinto UART WW 00Granularity .TW W Y.C WW .10is0Y Tthe . 1 WPreScaler T M . . M O 1 W . O W OM supported division W Y.C device The previous Prescaler WW .100FPGA WW of00the W 0Y.C mode Y.C WW .1interface TtoWallow the programmed . 0 Wversion T M.T . M O 1 W M . O W O ) and ( n + 0.5 ) W to communicate W ), ( Y .C Y.C C0.25 W the PC over WWUSB..This by ( n + 0 ), (W nW + 0.125 n.+ .TW W .Twith 100 approach 00Y M .TW 1 00 M . O 1 W M . O W O W W Y.C WW USB where n is an integer 2 and 16,384 customer W ( 214 ). To 00peripheral 0Ya.C Y.C WW allows TtoWcreate a “generic” . 1 0 0 WW between T M.T . . 1 0 M . O 1 W M . O W C O W under Y. Y.C WW ( n0+00.375 these have been 0.625 ), ( n WW whose function defined of .TW Y.C ), ( n.T+W .TW can be W 100 control 00hardware Wadded M . 1 M . O 1 W M . O W .C W .CO WW) which + 0.75 ) and ( n+ W 0.875 can be used to improve WWthe application W 00Y canM.TW 0Y.C software. Y TW The FPGAWbased hardware . 1 0 0 T . . 1 0 M . O M O W WW by0changing W.1 Yand W changed .COgenerate 0Y.C M.TW Y.C Wsimply the accuracy of some baud rates be easily00 upgraded or.T totally Wnew baud WW 1 0 WW T . . 1 0 M . O WWnotes, W.1 Y.CO(M W .CO .Tdata Y.C WW W 0 Y W rates which were previously especially with the FPGA configuration file. Application W 0 0 W 1 0 0 WW impossible T M.T . . 1 0 M . O 1 W M . O W C . W W Y W and .CO .TW Y.C .TW higher baud rates ). WW software modules forW this application W .TW 100 00development M . 1 00Y M . O 1 W M . O W O W party00Y.C W .C from.TFTDI W and other W3rd area WWwill be.1available 00Y WW .100Y.C M.TW M.T .1 M O W O W C . O WW .100Y WW 00Y.C . • PreScaler Divide By 1W Fix developers. WW .100Y.C M.TW .TW OM 1 W M . O W C . O W W C . Y C integer W W W W Y.the WW .100Y The previous device had aW problem when part .100 M.T OM W M.T .100 O W C . O W W C . Y W C W . 0 Y W W 2nd generation W • USBW 0 Y of the divisor was set to 1. In device, 2.0 (full .speed .T Wthe 100 option) W.1 Y.CO M.T .100 OM W O W W C . W C W to .100 Y.rate of 2.TW A new EEPROM W setting the prescaler value toW 1W gives a baud .TW the FT232BM 00Y optionMallows .1based M .100 O W O WW 00Y.CO W C W opposed W Y.descriptor 0 Y.Crate of 3.TW return a USB WW2.0 device T million baud and setting it to zero gives a 0 baud as to USB . 0 0 WW .1 W.1 Y.C M .1 OM W O W W C . W C W 0Y be M Y. with .TW1.1. Note: W million baud. Non-integer division The device a USB .TW2.0 Full Speed WisWnot supported .100 .10would W M .100 O W . O W W C . W 00Y WWas opposed .TW divisor values of 0 and 1. device (12Mb/s) USB 2.0 High Speed 1 00Y to a M WW .100Y.C M.TW . 1 . W O W O W WW .100Y W (480Mb/s). WW .100Y.C M.TW WW .100Y.C M.Tdevice W O W O W WW .100 WW .100Y.C M.TW • Bit Bang Mode WW .100Y.C M.TW W O WW W .CO .TW W C . Y W W W 0 Y W The 2nd generation device has a newW option referred 0 .1 .T 00 to W.1 Y.COM W WW W.1 Y.COM W W W W W .T 00 as “Bit Bang” mode. In Bit Bang mode, W the eight UART . .T 00 W.1 Y.COM W WW W.1 Y.COM W W W W W .T W interface control lines can be switched between UART .100 W M.T .100 OM W O W C . W C W Y WW W packets W 0 Y. W T . 0 0 WData T interface mode and an 8-bit Parallel IO port. . 1 0 M . W.1 Y.COM W WW 00Y.CO .TW W W 0 W T can be sent to the device and they will be sequentially . 0 M .1 W.1 Y.COM W WW 00Y.CO W W Wprescaler sent to the interface at a rate controlled by the .T 00 W.1 W.1 Y.COM W W W W W stand-.100 setting. As well as allowing the device to be used M.T O W C . W WW .100Y alone as a general purpose IO controller for example M.T O W W Y.C controlling lights, relays and switches, some otherW .100 W WW interesting possibilities exist. For instance, it may be possible to connect the device to an SRAM configurable Copyright © DLP Design 2002 Page 3 of 12 WW .100Y.C M.TW WW .100Y.C M.TW WW 00Y.CO .TW WW 00Y.CO .TW W W W T .1 W.1 Y.COM W M. OM W O W C . W C W Y W .T W Y. W .100 M.T .100 OM W M.T .100 O W C . O W W C W Y W WW .100Y. .TW DLP-USB232M WW .100Y.C M.TW M.TManual .100 User’s M O W O W C . O WW .100Y WW 00Y.C .TW WW .100Y.C M.TW WTable M .TWPINOUT DESCRIPTION O 1 1 DLP-USB232M W M . O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O WW 00Y.CO .TW W WW 00Y.CO .TW C . W W W Y W W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .TW W.1 Y.COM W W W W W .T 00 W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .TW W.1 Y.COM W W W W W .T W .100 W.1 Y.COM W M.T .100 OM W O W W C . W C W Y W .T W W WW .100Y. .100 M.T .100 OM W M.T O W C . O W W C W Y W WW .100Y. .TW WW .100Y.C M.TW M.T .100 M O W O W C . O W WW .100Y .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O WW 00Y.CO .TW W WW 00Y.CO .TW C . W W W Y W W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .TW W.1 Y.COM W W W W W .T 00 W W.1 Y.COM W M.T .100 W.1 Y.COM W O W W W C . W .T W .T WW .100Y .100 .TW 100 M . OM W M O W C . O W W C . Y W W .TW W .TW 100 00Y WW .100Y.C M.TW M . 1 M . O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O WW 00Y.CO .TW W WW 00Y.CO .TW C . W W W Y W W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .T W.1 Y.COM W W W W W .T 00 W W.1 Y.COM M.T .100 W.1 Y.COM W O W W W C . W . W 00 W WW .100Y M.T .100 W.1 Y.COM M.T O W O W W C . W W WW .100Y WW .100Y.C M.TW .100 M.T OM W O W C . O W W C . Y W C W . 0 Y W W 0 W .T WW .100Y .100 W.1 Y.CO M.T OM W O Pin# Description W W C . W C W 0 Y W W W 0Y. WW the M.THigh for DLP- WW.10 .100 O M.T a DLP-USB245M .10board 1 BOARD ID (Out) IdentifiesW asOeither or DLP-USB232M. O W C . Y.C W W .C 0 Y W W W 0 0 Y W T . 1 0 0 W T . . 0 M .1 USB232M and low for DLP-USB245M. WW 00Y.C W.1 Y.COM W WW 00Y.CO .TW W W W W .1 2 Ground .T 00 W.1 Y.COM W WW 00Y. W.1 Y.COM W W W W W T pin must 3 RESET# (In) Can be used to reset the FT245BM. .this 00 required, W by an .external .If1not 100 device W.1 Y M.T OM W O W W C . W C W Y W W 00 W be tied to VCC. WW .100Y. M.T .100 W.1 M.T O W O W W C . W .C Y W 4 RESETO# (Out) Output of W theW internal Reset after Wimpedance .TW .100 .TW Stays high 100for ~ 2ms 00Y Generator. M . 1 W M . O W O W .C W WW VCC > 3.5v and the internal W clock starts up, to W the 3.3v 0 0Y.C of the TW .internal .1 .TWit’s output W 1 output 00Y then clamps M . 1 M . O W O WW W C . W C W . Y W Walso force regulator. Taking RESET# lowW will RSTOUT# to go high impedance. RSTOUT# is NOT W Y W .T 00 W. M.T .100 W.1 Y.COM W O W W W C . W W affected by a USB Bus Reset. W W Y W M.T .100 W M.T .100 O W O W C . W C 5 Ground W Y WW W 0 W T . 0 WW .100Y. T . 1 OM W. OM It’s primary purpose W L.D.O. regulator. 6 3V3OUT (Out) Output from the integrated 0Y.C theM.TW WW is .to10provide WW .100Y.C M.TW W Wcell and theORSTOUT# pin. A smallWamount internal 3.3v supply to the USB transceiver ofYcurrent .CO 0 W 0 WW .100Y.C M.TW 1 . W external (<= 5mA ) can be drawn from this pin toW power 3.3v logic if required. WW .CO W Y W 0 W T . 0 7 Ground W.1 Y.COM W W W .T .100 Typically 8 SLEEP# (Out) Goes Low during USB suspend OM used to power-down an external Wmode. C . W WRS232.1converter 00Y TTL to RS232 level converter IC in USB-> designs. W W 9 RXLED# (O.C.) LED Drive - Pulses Low when W Receiving Data via USB Copyright © DLP Design 2002 Page 4 of 12 WW .100Y.C M.TW WW .100Y.C M.TW WW 00Y.CO .TW WW 00Y.CO .TW W W W T .1 W.1 Y.COM W M. OM W O W C . W C W Y W .T W Y. W .100 M.T .100 OM W M.T .100 O W C . O W W C W Y W WW .100Y. .TW DLP-USB232M WW .100Y.C M.TW M.TManual .100 User’s M O W O W C . O W WW .100Y .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W W C WVCC .CO 3.0.Tvolt 0Y.C18..25. WW 14..16 .TW W to +5.25 W volt to interface 0Y.UART .TW pins 10..12, 10and 0the W10W .VCC-IO M . 1 00Y (In)M M . O 1 W O W W W W Y.C logic, .CO .Twith W 3.3v external 00external 0Y.C VCC-IO Yinterfacing to the 3.3v W supply of .the WWlogic.1connect TW . 1 0 0 WW When M.T 0 M O 1 W M . O W C W W Y. W pin mustW .CO .TtoWVCC to drive .TW 0Y.C level. WW out at 5v be connected from .TThis 100 to VCC 0CMOS WW otherwise M . 1 00Y connect M . O 1 W M . O W W .CO .TW WW .100Y.C M.TW 0Y.C M.TW Yelectronics or EXTVCC.WW 0 0 WW the target 1 0 . W M O W .CO .TW W.1 –Y.(In) COUse for Wto the module. 0Y Yto.C5.25 Volts) WWConnect 11 WW EXTVCC applying main power (4.4 to W 0 0 WW T . 1 0 0 T M . . 1 0 M W O(typical W. USB Y .CO .TW OM is to be powered by W W.1 Y C . PORTVCC if .module the port configuration) Y W C W 0 W W W 0 W .T W .100 to EXTVCC OM W.1 by M.T from USB port.WConnect .100 - (Out)OPower OM if module is to beWpowered W 12 PORTVCC .Cthe W C W . Y C W . 0 Y W W W 0 0 Y W T . 1 target OM.T 0 current available W . .T 1 00 M . 1 W M . USB port (typical configuration). 500mA maximum to USB adapter and O W O W WW .100Y.C M.TW W 0Y.C M.TW Y.Cdevice.T WW 0 WW .1if00USB 1 electronics is configured for high power. . OM WW 00Y.CO .TW W WW 00Y.CO .TW C . W W W Y W W 13 TXLED# - (O.C.) Transmitting Data M .1 .T- Pulses Low when W 00 LED Drive M via USB .1 O WW 00Y.CO .TW W.1 Y.COM W C . W W Y W W 14 PWRCTL Bus Powered.T – Tie Low / Self WPowered .T W (IN) .10–0Tie High W.1 Y.COM W M .100 OM W O W W C . W C W . 15 POWEREN# (OUT) Goes Low after the device is configured via USB, then high during USB Y W .T W .T WW .100Y .100 .TWpower to external 100using aOP-Channel M . OM W M W C suspend. Can be used to control logic Logic Level . O W W C . Y W 0 Y .TW W Option TW using theWPWREN# .when 10pin 0in0EEPROM 0Y.C theM WW M . .TW Pull-Down MOSFET switch. Interface 1 0Enable M . O 1 W . O W O W WW .100Y.C M.TW in this way. WW .100Y.C M.TW WW .100Y.C M.TW O W O O Data for RS485 WW W 16 TXDEN (OUT) Enable Transmit W Y.C WW .100Y.C M.TW 0 W T . 0 WW .100Y.C M.TW 1 M . O 17 RI# (IN) Ring W Indicator Control When the Remote option in the WWW W W .CO is .enabled Y.C WWWakeup W .CO Input. 0 Y W 0 0 Y W T 1 0 0 W T M.T . . to resume the PCW 1 Host controller 0 can beM M . O W .1low EEPROM, taking W RI# used USB from suspend. O C . O WW .100Y .TW W WW .100Y.C M.TW 0Y.C Control WW M .TInput 0Detect 18 DCD# (IN)Data Carrier O 1 W M . O O WW 00Y.C WW .100Y.C M.T WW W Y.C Input Wsignal TW . 0 WSet T 19 DSR# (IN)Data Ready Control / Handshake . 1 0 M . 1 OM WW 00Y.CO . W. .CO .TW WW signal C . Y W W W 0 Y W 20 DTR# (OUT)Data Terminal Ready Control Output / Handshake W M .1 .T 10 00 OM OM/ Handshake signalWW. WW 00Y.CO W.1Control C . C W . Y W 21 CTS# (IN) Clear W ToW Send Input W Y W .T 00 .T W.1 Y.COM .100 Control W.1 Y.COM W OM W WSend 22 RTS# (OUT) RequestWTo Output / Handshake signal W C . W W .T W .100 .TW 100 00Y M . O 1 W M . O W 23 RXD (IN) Receive Asynchronous Data .COInput.TW WW .100Y.C WW 00Y WW .100Y.C M.TW W O W M 24 TXD (OUT)Transmit Asynchronous Data O W OOutput W.1 WW .100Y.C WW .100Y.C M.TW WW .100Y.C M.TW W O W O W WW .100Y.C WW .100Y.C M.TW WW .100Y.C M.TW W O W O W WW .100Y. WW .100Y.C M.TW WW .100Y.C M.TW W O W O W WW .100Y WW .100Y.C M.TW WW .100Y.C M.TW W O W O W WW .100 WW .100Y.C M.TW WW .100Y.C M.TW O WW W WW 00Y.CO .TW C . W W W Y W W .1 .T 00 W.1 Y.COM W WW W.1 Y.COM W W W W W .T 00 W . .T 00 W.1 Y.COM W WW W.1 Y.COM W W W W W .T W .100 W M.T .100 OM W O W C . W C W Y WW W 0 W T . 0 WW .100Y. T . 1 OM W. OM W WW .100Y.C M.TW WW .100Y.C M.TW O W O W WW .100Y.C WW .100Y.C M.TW W O W WW WW .100Y.C M.TW O W WW .100Y.C M.TW O W WW .100Y.C W WW Copyright © DLP Design 2002 Page 5 of 12 WW .100Y.C M.TW WW .100Y.C M.TW WW 00Y.CO .TW WW 00Y.CO .TW W W W T .1 W.1 Y.COM W M. OM W O W C . W C W Y W .T W Y. W .100 M.T .100 OM W M.T .100 O W C . O W W C W Y W WW .100Y. .TW DLP-USB232M WW .100Y.C M.TW M.TManual .100 User’s M O W O W C . O W CONFIGURATION EXAMPLES DEVICE WW .100Y .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW Oand Self Powered Configuration WW 00Y.CO .TW W Powered WW 00Y.CO .TW USB Bus C . W W W Y W W .T 00 M W.1 Y.COM W O W.1Figure Wbus W.1 Y.COM W C . W 1 illustrates a typical USB powered A W Y W W .T W W .100 configuration. 00 M.T .100 OM W Figure M.T .11 O W C . O W W C Bus device gets W its power 1 Y. Powered TWBasic 00Ythe USB WW USB .TW WW .100Y.C M.TW M.bus. . from 100 M . O W O W C O Was follows W W .C Bus.T Y. W devicesW power are 0YUSB WW rules 100 – OM.T 0for WW .100Y.C M.TW . 1 M . W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW W O W .CO .TW O Wmore W .Cthe Y W C W . 0 Y a) On plug-in, device must draw no than 100mA W W W 0 0 Y W T . 0 W M .1 .T 00 W.1 Y.COM W .CO500uA. WW W.1 Y.COM W Y W 0 W W b) On USB Suspend the device must draw no more than .TW 0 0 W T . 1 0 0 W T M . . 1 0 M . O 1 W W .C than OM Wthat draws W. .CO .Power c) W A Bus Powered (one .TW 00Y more M W TW Device W 1 00Y High WW .100Y.C M.TW . 1 M . O W O W O W .C Y.C WWthe current 100mA) .TW WW should .TW pin to keep 100 below 00Yuse theMSLEEP# WW .100Y.C M.TW M . 1 . O W W O W .CO .TW WW .100Y.C M.TW 100mA on USB suspend. WWon plug-in 00Yand 500uA WW .100Y.C M.TW 1 M . W O .CO O W WWthat0consumes Wthan 100mA 0Y Y.C WW d) AW device more can not.1be pluggedM.TW 0 0 T . WW .100Y.C M.TW .1 O W OM O W WW Y.C Hub.TW WW .100Y.C M.TW USB Bus1Powered 0 0 WW .100Y.C M.TW into aW M O W O from the USB Bus. WW. W thatY500mA .CO .TW C e) No device can draw more . Y WW .100Y.C M.TW W W 0 W 0 0 W T . 1 0 M . WW 00Y.CO .TW W.1 Y.COM CO .of WW f) The power descriptorW shouldW be programmed to a value zero. .TW Y W 0 W 0 0 W in the.1EEPROM T 0 .1 W.1 Y.COM W M. OM W O W W C . W C W Y W .T W 00 W WW .100Y. M.T .100 W.1 Y.COM M.T O W O W W C . .C 2 .TW W WW .100Y .TW WW Figure M.T .100 00Y M O 1 W M . O W C . O W WW .100Y . WW .100Y.C M.TW WW .100Y.C M.TW OM W O W C . O W W C . Y W W WW .100Y WW .100Y.C M.TW .100 M.T OM W O W C . O W W C . Y W C W . 0 Y W W 0 W .T WW .100Y .100 W.1 Y.CO M.T OM W O W W C . W C W Y W W W WW .100Y. .100 M.T .100 O W M.T O W O W W C Y.C W 0 W 0 WW .100Y. T . 1 WW .100Y.C M.TW . M O WW 00Y.C W WW 00Y.CO .TW C . W W W Y W W .1 .T 00 W.1 Y.COM W WW 00Y. W.1 Y.COM W W W W W .T W .100 W.1 Y M.T .100 OM W O W W C . W C W Y W W 00 W WW .100Y. M.T .100 W.1 M.T O W O W W C . W WW .100Y .TW WW .100Y.C M.TW .100 M W O W O W W W WW .100Y.C M.TW WW .100Y.C M.TW .1 O W O WW W C . W C W . Y W W W W .T 00 W . .T 00Y W.1 Y.COM W WW W.1 Y.COM W W W W W device.1gets .T 00 its power W configuration. Figure 2 illustrates a typical USB self powered AM USB .T Self Powered W .100 OM from its own W O W C . W C W Y WW W 0 Y. W T . 0 0 WWthe USB T Power Supply and does not draw current from bus. . 1 0 M . W.1 Y.COM W WW 00Y.CO .TW W W 0 W T Basic rules for USB Self power devices are as follows.1–0 . M .1 OM W WW 00Y.CO C . W W Y W 0 USB bus .when W down T the USB Host or Hub a) A Self-Powered device should not force current 0the W.1 Controller is W.1 Y.COM W W W W W powered down. M.T .100 O W C . W Y WWas it likes b) A Self Powered Device can take as much current M.T operation and USB suspend as it has its .100 duringOnormal W WW .100Y.C own Power Supply. WWand both Bus and Self Powered USB Hubs. WHost c) A Self Powered Device can be used with any USB Copyright © DLP Design 2002 Page 6 of 12 WW .100Y.C M.TW WW .100Y.C M.TW WW 00Y.CO .TW WW 00Y.CO .TW W W W T .1 W.1 Y.COM W M. OM W O W C . W C W Y W .T W Y. W .100 M.T .100 OM W M.T .100 O W C . O W W C W Y W WW .100Y. .TW DLP-USB232M WW .100Y.C M.TW M.TManual .100 User’s M O W O W C . O W WW .100Y .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W Oto configure the DLP-USB232M W W CO W .interface Y.C WW 00to C Figure 3 showsYhow with a 3.3v logic device in00Bus-Powered W . Y W W W W T . W M.T .1 .T 1 00 M . O 1 W M . O W C . W .C configuration. this example,W a LDO regulator .CO WWto the.1target .TW and 00Y microcontroller WW provides TWthe USB Bus .from 00Y3.3 volts WW .10In0Y M .T 1 M . O W M W W at 3.3v00level. W (pin W .CO .IO Y.C COwhichTin the VCCIO pins to drive Wout Wturn will cause 0Yinterface Y.10) WWthe UART TW 1 0 0 WW line M.T . . 1 0 M . O 1 W M . O W C O W WW .100Y. .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W W O W Figure .CO .TW WW .100Y.C M.TW WW 3 00Y WW .100Y.C M.TW 1 M . O WW 00Y.CO .TW W WW 00Y.CO .TW C . W W W Y W W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .TW W.1 Y.COM W W W W W .T 00 W W.1 Y.COM W M.T .100 W.1 Y.COM W O W W W C . W .T W 00 W WW .100Y M.T .100 W.1 Y.COM W M.T O W O W W C . W W WW .100Y WW .100Y.C M.TW M.T .100 M.T O W O W C . O W W W Y W WW .100Y.C M.TW WW .100Y.C M.TW M.T .100 O W O W C O W WW .100Y. .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O WW 00Y.CO .TW W WW 00Y.CO .TW C . W W W Y W W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .T W.1 Y.COM W W W W W .T 00 W W.1 Y.COM M.T .100 W.1 Y.COM W O W W W C . W . W 00 W WW .100Y M.T .100 W.1 Y.COM M.T O W O W W C . W W WW .100Y WW .100Y.C M.TW .100 M.T OM W O W C . O W W C . Y W C W . 0 Y W W 0 W .T WW .100Y .100 W.1 Y.CO M.T OM W O W W C . W C W Y W W W WW .100Y. .100 M.T .100 O W M.T O W O W W C Y.C W 0 W 0 WW .100Y. T . 1 WW .100Y.C M.TW . M O WW 00Y.C W WW 00Y.CO .TW C . W W W Bus Powered Circuit with Power Control Y W W .1 .T 00 OM 4 W.1Figure WW 00Y. W.1 Y.COM W C . W W Y W W USB Bus powered circuits need to power down.T W .T Wbe able.to .100 100 W.1 Y M OM W O W W C . W C W Y W 00 Y. total .TW W in USB suspend mode in order to meet 500uA WWthe <= M.T .100 W.1 M .100 O W O W W C . .C W suspend current requirement (including external logic). WW .100Y .TW WW .100 .TW 00Y M 1 W M . O W O W W WW 0Logic Figure 4 shows how to use a discreteW P-Channel WW .100Y.C M.TW 0Y.C Level .1 .TW 1 M . O W O WW W C . W C W . Y W W MOSFET to control the power to external logic circuits. A W Y W .T 00 W W. M.T .100 W.1 Y.COM W O W W W C . W W suitable device could be a Fairchild NDT456P W Y W .T W or equivalent. .100 W M.T .100 OM W O W C . W C W Y WW W logic This configuration is suitable for powering W external W 0 Y. W T . 0 0 T . 1 0 M . W.1 Y.COM W WW 00Y.CO .TW where the normal supply current is <= 100mA and the logic W 0 WW T . M .1 .10 OM W WW 00Y.CO C . W W to be controlled does not generate an appreciable current Y W W .T 00 W.1 W.1 Y.COM W W W W surge at power-up. For power switching external Wlogic that M.T .100 O W C . W takes over 100mA or generates a current surge W onW powerup00Y M.T .1 O W W Y.C we recommend that a dedicated power switch i.c W with .100 W inbuilt “soft-start” is used instead of a MOSFET. A suitable WW power switch i.c. for such an application would be a Micrel (www.micrel.com) MIC2025-2BM or equivalent. Copyright © DLP Design 2002 Page 7 of 12 WW .100Y.C M.TW WW .100Y.C M.TW WW 00Y.CO .TW WW 00Y.CO .TW W W W T .1 W.1 Y.COM W M. OM W O W C . W C W Y W .T W Y. W .100 M.T .100 OM W M.T .100 O W C . O W W C W Y W WW .100Y. .TW DLP-USB232M WW .100Y.C M.TW M.TManual .100 User’s M O W O W C . O W WW .100Y .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W .C O W Y.C controlled WWnote00the .TW W in connection 00Y 0power Y.Cfollowing.Tpoints WW with TW designs: W . 1 0 W Please M . 1 M . O 1 W O W OM W. WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW W .CO .TW W WW 00Y.CO .TW CO .controlled 0Y WW reset Wlogic W 0 Y W 1 0 T a) W The to be must have it’s own reset circuitry so that it will automatically itself when M power is re. . 0 W.1 Y.COM W WW 00Y.CO .TW W.1 Y.COM W W W W W .T W on coming applied .100 W.1 Y.COM W M.T .100 out ofOsuspend. OM W W W C . W C W Y W W .T W Y. option W .100 b) SetW the soft .pull-down EEPROM. M.T .100 OM 100 W M.Tbit in the FT232BM O W C . O W W C . Y W W .TWit’s WWnot be.1powered .Twith 00Y 0Y.C M WWpower Mgets .100(PWREN# .TW VCCIO must c) For 3.3v circuits down the external circuitry 0controlled M O 1 W . O W C . W .CO .TW WW .100Y .TW WW .100Y.C M.TW WWfrom .VCCIO). M VCC supply 00Y O 1 W M O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW MECHANICAL DRAWINGS (PRELIMINARY) O WW 00Y.CO .TW W WW 00Y.CO .TW C . W W W Y W W M .1 INCHES (MILLIMETERS) OTHERWISE NOTED .1 00 UNLESS.T OM W WW 00Y.CO .TW W.1 Y.COM W C . W W Y W W W .T 00 W W.1 Y.COM W M.T .100 W.1 Y.COM W O W W W C . W .T W .T WW .100Y .100 .TW 100 M . OM W M O W C . O W W C . Y W W .TW W .TW 100 00Y WW .100Y.C M.TW M . 1 M . O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW W 1.5 typ O WW 00Y.CO .TW W .CO .TW W C . Y W W W 0 Y W 0 W (38.1 .typ) M .1 .T 00 M W.1 Y.CO WW 00Y.CO .T W 1 Y.COM W .10 typ W W W W W T 00 W typ). W.1 Y.COM .100 .235 typOM.T OM W.1 Y.(2.54 W W C W C W . W . 00 W 0Y typ) M.TW WW .10(6.0 M.T .100 W.1 Y.COM O W O W W C . W W WW .100Y WW .100Y.C M.TW .100 M.T OM W O W C . O W W C . Y W C W . 0 Y W W 0 W .T WW .100Y .100 .65 typ W.1 Y.CO M.T OM W O W W C . W C W Y W W W WW .100Y. .100 M.T .100(16.5 typ) O W M.T O W O W W C Y.C W 0 W 0 WW .100Y. T . 1 WW .100Y.C M.TW . M O WW 00Y.C W WW 00Y.CO .TW C . W W W Y W W .T W.1 Y. .100 W.1 Y.COM W OM W .50W typ W C . W W W .T W(12.7 typ).100Y .100 .TW 100 M . W M O W O W .32 typ Y.C WW .100Y WW (8.0 .TW 00 WW .100Y.C M.TW 1 typ) M . W O W O W WW .100 WW .100Y.C M.TW WW .100Y.C M.TW O WW W WW 00Y.CO .TW C . W W W Y W W .1 .T 00 W.1 Y.COM W WW W.1 Y.COM W W W W W .T W . .T 100 00 WW W.1 Y.COM W .52 typ dia WW. 0Y.COM W W W .T W (13.2 typ)W .10 W M.T .100 OM W O W C . W C W Y WW W 0 W T . 0 WW .100Y. T . 1 OM W. OM W WW .100Y.C M.TW WW .100Y.C M.TW O W W .19 typYdia.CO W WW .100Y.C 0 WW .(.46 T . 0 typ) W W 1 Y.COM W WW 0 WW .6.1typ T . 0 .16 typ .36 typ dia (15.2 typ) OM W W (9.2 typ) Y.C (4.2 typ) 0 WW .7 .typ T . 0 W 1 Y.COM WW(17.8 typ) .100 W WW Copyright © DLP Design 2002 Page 8 of 12 WW .100Y.C M.TW WW .100Y.C M.TW WW 00Y.CO .TW WW 00Y.CO .TW W W W T .1 W.1 Y.COM W M. OM W O W C . W C W Y W .T W Y. W .100 M.T .100 OM W M.T .100 O W C . O W W C W Y W WW .100Y. .TW DLP-USB232M WW .100Y.C M.TW M.TManual .100 User’s M O W O W C . O W WW .100Y .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W for the DLP-USB232M module O These the absolute ratings with the Y.C WW .1in00accordance WW are .TW Wmaximum Y.C WW .100Y.C M.TW 0 W T M . 0 O 1 W MRating System (IEC . Maximum Absolute Exceeding these may cause permanent damage W 60134). O WW .100Y.C M.TW WW 00Y.CO .TW WW .100Y.C M.TW toWthe device. O W O W OM W.1 WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW W .CO o .TW WW 00Y.CO .TW .CO .T……………………………………………………. 0Y+ WW–65o.C WW Temperature • W Storage to 150MC W 0 Y W 1 0 M .1 O M .10 O W C oW . O W W C . Y W C • Ambient (W Power Applied W 070oC M.TW Y W 0 C to.1+ 0 0 Y. W )……………………………….. T . 0 0 WW .Temperature T . 1 0 M . O M WW to0+6.00v W 1 Voltage • VCCW Supply -0.5v W Y.C WW 00Y.CO .TW .CO ……………………………………………….…….. 0 W W Y W 1 0 W T M.T . VCC + O0.5v . ……………………………………………….. 1 M . W M .10 O • DC InputWVoltage Inputs -0.5v to W C . O .C W WW .100Y W .TW W Y.C W .TW 00Y …………………… M .T 1 M . • DC W Input W Voltage Impedance Bidirectionals -0.5v to VCC + 0.5v O W M .100 - High O W O WW .100Y.C M.TW W …………………………………………… Y.C– Outputs WW .100Y.C M.TW 0 WW Current T • DC Output 24mA . 0 1 O OM WW 00Y.CO .TW W. WW 00Y.C C W . W W W Y W T • DC Output Current – Low Impedance Bidirectionals …………………. 24mA . W M .1 .T 00 W.1 Y.COM W OM= 5.25v ) .……………………………………… WW 00Y.CO .TW W.1 (YVCC W C . • Power Dissipation 500mW W W W W .T 00 W W.1 Y.COM W M.T ( I < 1uA ) ……………………………… .100 W.1 Y.COM W O W W • Electrostatic Discharge Voltage +/2000v W C . W .T W .T 00 WW .100Y .100 .TW 1 M . OM W M O W C • Latch Up Current ( Vi < 0 or Vi > Vcc ) ………………………………….. 100mA . O W W C . Y W W .TW W .TW 100 00Y WW .100Y.C M.TW M . 1 M . O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW D.C. Characteristics O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O WW 00Y.CO .TW W .CO .TW WoW C . Y W W DC Characteristics ( Ambient Temperature = 0 .. 70 C ) W 0 Y W 0 W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .T W.1 Y.COM W W W W W .T 00 W W.1 Y.COM M.T .100 W.1 Y.COM W Operating Voltage and Current O W W W C . 0 W . W W 0Y WW M.T ConditionsWW.10 .100 OM M.T Min O Description W.10 Typ Max Units W C . O C . Y W W W Y.C WW .100Y WW Supply .100 M.T OM W M.T 4.4 .100 Vcc1 VCC Operating 5.0 5.25 V O W C . O W W C . Y W C W . 0 Y W W W 0 Y W .T Voltage W .100 W.1 Y.CO M.T .100 OM W O W W C . W C W Y W W Y. WW Supply .100 Vcc2 VCCIO Operating 3.0 - W 5.25 .100 V OM.T O W M.T .100 W O W W C Y.C W 0 W 0 WW .100Y. T Voltage . 1 WW .100Y.C M.TW . M O WW 00Y.C W .CO Normal W- W 00mA C W . Y W W Icc1 Operating Supply Current 25 Operation W Y W T . W .1 .T 00 W.1 Y.COM W WW 00Y. W.1 Y.COM- W 300 W W W Icc2 Operating Supply Current 400 uA USB Suspend W W M.T .100 W.1 Y M.T .100 O W O W W C Note 1 . W C W Y W W 00 W WW .100Y. M.T .100 W.1 M.T O W O W W C . .C W WW .100Y TW .resistor WWthe 200uA .100 .TW 00Y nominal M 1 Note 2 – Supply current excludes drawn by the external pull-up on W M . O W O W W W WW .100Y.C M.TW WW .100Y.C M.TW .1 USB DP. O W O WW W C . W C W . Y W W W W .T 00 W .T 00Y W. W.1 Y.COM W OM W W.=1 5.0v W C UART IO Pin Characteristics ( VCCIO ) . W W W Y W .T W .100 W M.T .100 OM W O W C . W Description Min Typ Max Units Conditions C W Y WW W 0 W T . 0 WW .100Y. T . 1 . OM W 4.4 OMVoh Output Voltage High 4.9 WW I 0source Y.C = 2mA 0 WV .TW WW .100Y.C M.TW 1 M . O W OW 0.1 Vol Output Voltage Low 0.7 VW I sink = .C4 mA W 00Y WW .100Y.C M.TW 1 . Vin Input Switching Threshold WW1.1 1.5 1.9 V WWNote 2 O W Y.C W 0 W T . 0 1 VHys Input Switching Hysteresis WW. 200 mV OM C . W Y W M.T .100 O W WW .100Y.C W WW Copyright © DLP Design 2002 Page 9 of 12 WW .100Y.C M.TW WW .100Y.C M.TW WW 00Y.CO .TW WW 00Y.CO .TW W W W T .1 W.1 Y.COM W M. OM W O W C . W C W Y W .T W Y. W .100 M.T .100 OM W M.T .100 O W C . O W W C W Y W WW .100Y. .TW DLP-USB232M WW .100Y.C M.TW M.TManual .100 User’s M O W O W C . O W WW .100Y .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O O WW =03.3v WW .100Y.C M.TW WW IO0Pin W 0Y.C) M.TW Y.CCharacteristics UART (W VCCIO 0 W T . 1 . O 1 W OM W W. W .CO Typ Y.C WW 00Min C W . 0 Y W W W Description Max Units Conditions 0 Y W T . W M.T .1 .T 1 00 M . O 1 W M . O W C O W Y. W Y.C TW Voh -.TW 3.2 WWV .10I0source = .2mA Y.C Voltage WW .100Output M .TW High W W.1002.7 M O W M O O VolWWW Output - .TW 0.7 V I 0sink mA 0Y.C= 4 M WW .TW W Low WW .10.1 0Y.C M Y.C Voltage 1 0 0 T . . 0 O 1 W M . O W C O W .C Y. Vin WWW Input Switching Threshold .C WVW Note WW .1.0 100 2 OM.T 00Y 1.4M.TW1.8 . .TW 1 00Y 1 W M . O VHys WW InputYSwitching HysteresisWWW mV .CO .TW WW .100Y.C M.TW 0Y.C200M.TW 0 0 W 1 0 . 1 OM WW 00Y.CO .TW W. WW 00Y.CO .TW C . W W W Y W W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .TW W.1 Y.COM W W W W W .T 00 RESET#WIO Pin.1Characteristics 00 W.1 Y.COM W M.T W.1 Y.COM W O W W W C . .T W 00 Y W Min .100Typ M .T WW Description Max UnitsW Conditions W.1 Y.COM W M.T .100 O W O W W C . W W V WNote 2.100 W Switching W 0Y Y.C Threshold W1.1 WInput Vin 1.9 M.T M.T .101.5 O W M.T .100 O W C . O W W W .C Y .C W W Switching WW .1200 .TW mV VHys Input 00Y W M.T .100 .TW 00Y Hysteresis M O 1 W M . O W C O W WW .100Y. .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O W RSTOUT Pin Characteristics O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O Units Conditions W Description Min WTyp Max W Y.C WW .100Y.C M.TW WW 00Y.CO .TW 0 W T . 0 W M .1 Voh Output Voltage 3.0 I source W =W 2mA Y.CO OM W.1 High .CO V W-W 003.6 C W . Y W W .TW W Y W T . 100 W Current M . .T 1 00 Tri-State M . O 1 W Iol Leakage 5 uA M . O W O W WW .100Y.C M.T WW .100Y.C M.TW WW .100Y.C M.TW O WW 00Y.CO . W WW 00Y.CO .TW C . W W W Y W W M .1 .T 00 W.1 Y.COM W WW 00Y.CO W.1 Y.COM W W W USB IO Pin Characteristics W W .T W .100 W.1 Y.COM M.T .100 OM W O W W C . W C W . Description Min Typ Max Units Conditions Y W W .T WW .100Y .100 .TW 100 M . O W M O W W C W3.6v 00Y.V UVoh IO Pins Static Output (0Y High) 2.8 W .CO .T WW .100Y.C W W T . WW 1 0 O W OM W. W.1 ( Low O UVol IO Pins Static Output )M 0 WW .100Y.C WW0.3 .100YV.C M.TW WW .100Y.C M.TW W O W UVse Single Ended RxWThreshold WW 00VY.CO .TW WW .100Y.C W Y.C 0.8 W2.0 0 W T . 1 0 W .1 OM OM UCom Differential Common 0.8 2.5 W. V WMode WW .100Y. WW .100Y.C M.TW WW .100Y.C M.TW W O W V UVDif Differential Input Sensitivity O0.2 W WW .100Y WW .100Y.C M.TW WW .100Y.C M.TW W O 3 UDrvZ Driver Output Impedance 29 44 WWohm Note O W W Y.C WW .100 0 W T . 0 WW .100Y.C M.TW M .1 O WW W WW 00Y.CO .TW C . W W W Y W W .1 .T .100 W.1 Y.COM W OM WW W C . W WWpull-up W Note 2 – Inputs have an internal W 200k resistor to VCCIO. W .T 00 . .T 00Y W.1 Y.COM W WW W.1 Y.COM W W W W W .T 0 W .100on USBDP W M.T 27R series resistors .10the OM and W Note 3 – Driver Output Impedance includes external O W C . W C W Y WW W 0 W T . 0 WW .100Y. T . 1 OM W. OM W WW .100Y.C M.TW WW .100Y.C M.TW O W O W WW .100Y.C WW .100Y.C M.TW W O W WW WW .100Y.C M.TW O W WW .100Y.C M.TW O W WW .100Y.C W WW Copyright © DLP Design 2002 Page 10 of 12 WW .100Y.C M.TW WW .100Y.C M.TW WW 00Y.CO .TW WW 00Y.CO .TW W W W T .1 W.1 Y.COM W M. OM W O W C . W C W Y W .T W Y. W .100 M.T .100 OM W M.T .100 O W C . O W W C W Y W WW .100Y. .TW DLP-USB232M WW .100Y.C M.TW M.TManual .100 User’s M O W O W C . O W WW .100Y .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W WW .100Y.C M.TW WW 00Y.CO .TW WW .100Y.C M.TW Disclaimer W 1 OM WW 00Y.CO .TW W. .COin, or.T WW contained C W . Y W W W 0 Y W Neither the whole nor any part of the information the product described in this datasheet, may be W M .10 W.1 Y.COM W M.T .100 O W O W W C . W 0 copyright .T W Y.C in any adapted material or W electronic.1form prior writtenW consent .of .TW 10the 00YwithoutMthe WW or reproduced OM holder. W M.T .100 O W C . O W W C W Y W WW .100Y. .TW WW .100Y.C M.TW M.T .100 M O W O W C . W W C W warranty W .CO .TW are supplied Y.basis .TW 00Y WWon an.1as .Tno This product and as to their.1suitability for any 00is 0Ydocumentation WW and M 0its M O 1 W M . W .C W W .CO .TW .CO made .TW as W 00Y 0Ynot WWDesign particular purpose is0Y either or implied. DLP will accept any claim forW damages.1howsoever arising 0 WW T M . 1 0 M . O 1 W M . O W C . .CO product. Y.Cnot affected. WW .100Y WW .TW WW rights .TW a result of or failure 00are Wuse M .TW Your statutory 1 00Y of thisM M . O 1 W . O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O WW 00Y.CO .TW W WW 00Y.CO .TW C . W W W Y W This product any device or system in failure Wor any variant .1 which the M .Tintended for use in W 00 of it is not .1medical appliance, OM WW 00Y.CO .TW W.1 Y.COM W C . W W Y W W Win personal .T 00 injury. Wmight reasonably of the product be expected to result W.1 Y.COM W M.T .100 W.1 Y.COM W O W W W C . W .T W .T WW .100Y .100 .TW 100 M . OM W M O W C . O W W C . Y W .C information .TW W be subject TW notice.W .without 100 00Y WW preliminary This document provides to change M . .TW that may 1 00Y M . O 1 W M . O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O WW 00Y.CO .TW W WW 00Y.CO .TW C . W W W Y W W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .T W.1 Y.COM W W W W W .T 00 W W.1 Y.COM M.T .100 W.1 Y.COM W O W W W C . W . W 00 W WW .100Y M.T .100 W.1 Y.COM M.T O W O W W C . W W WW .100Y WW .100Y.C M.TW .100 M.T OM W O W C . O W W C . Y W C W . 0 Y W W 0 W .T WW .100Y .100 W.1 Y.CO M.T OM W O W W C . W C W Y W W W WW .100Y. .100 M.T .100 O W M.T O W O W W C Y.C W 0 W 0 WW .100Y. T . 1 WW .100Y.C M.TW . M O WW 00Y.C W WW 00Y.CO .TW C . W W W Y W W .1 .T 00 W.1 Y.COM W WW 00Y. W.1 Y.COM W W W W W .T W .100 W.1 Y M.T .100 OM W O W W C . W C W Y W W 00 W WW .100Y. M.T .100 W.1 M.T O W O W W C . W WW .100Y .TW WW .100Y.C M.TW .100 M W O W O W W W WW .100Y.C M.TW WW .100Y.C M.TW .1 O W O WW W C . W C W . Y W W W W .T 00 W . .T 00Y W.1 Y.COM W WW W.1 Y.COM W W W W W .T W .100 W M.T .100 OM W O W C . W C W Y WW W 0 W T . 0 WW .100Y. T . 1 OM W. OM W WW .100Y.C M.TW WW .100Y.C M.TW O W O W WW .100Y.C WW .100Y.C M.TW W O W WW WW .100Y.C M.TW O W WW .100Y.C M.TW O W WW .100Y.C W WW Copyright © DLP Design 2002 Page 11 of 12 CN1 1 2 3 4 1 2 3 4 5 6 7 8 9 10 11 12 J2 EXTVCC PORTVCC GND 24 23 22 21 20 19 18 17 16 15 14 13 2 . Y1 6MHz . . 1 1 3 C5 .01 TXD RXD RTS# CTS# DTR# DSR# DCD# RI# TXDEN POWEREN# PWRCTL TXLED# DLP-USB232M USB Conn. Board ID GND RESET# RESETO# GND 3V3OUT GND SLEEP# RXLED# VCC-IO EXTVCC PORTVCC . WW 00Y.CO .TW W.1 Y.COM W WW 00Y.CO .TW W W W W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .TW W.1 Y.COM W W W W W .T 00 W W.1 Y.COM W M.T .100 W.1 Y.COM W O W W W C . W .T W 00 W WW .100Y M.T .100 W.1 Y.COM W M.T O W O W W C . W W WW .100Y WW .100Y.C M.TW M.T .100 M.T O W O W C . O W W W Y W WW .100Y.C M.TW WW .100Y.C M.TW M.T .100 O W O W C O W WW .100Y. .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O WW 00Y.CO .TW W WW 00Y.CO .TW C . W W W Y W W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .TW W.1 Y.COM W W W W W .T 00 W W.1 Y.COM W M.T .100 W.1 Y.COM W O W W W C . W .T W 00 W WW .100Y M.T .100 W.1 Y.COM W M.T O W O W W C . W W WW .100Y WW .100Y.C M.TW M.T .100 M.T O W O W C . O W W W Y W WW .100Y.C M.TW WW .100Y.C M.TW M.T .100 O W O W C O W WW .100Y. .TW WW .100Y.C M.TW WW .100Y.C M.TW M O W O W O W WW .100Y.C M.TW WW .100Y.C M.TW WW .100Y.C M.TW O WW 00Y.CO .TW W WW 00Y.CO .TW C . W W W Y W W M .1 .T 00 W.1 Y.COM W WW 00Y.CO .TW W.1 Y.COM W W W W W .T W .100 W.1 Y.COM M.T .100 OM W O W W C . W C W Y W .T W 00 W WW .100Y. M.T .100 W.1 Y.COM M.T O W O W W C . W WW .100Y .TW WW .100Y.C M.TW M. .100 M O W O W C . O W W Y W WW .100Y.C M.TW WW .100Y.C M.TW M .100 W O W .CO O W W C . Y W C W . 0 Y W W W 0 W .T 00 W M .1 .T 00Y W.1 Y.COM W WW 00Y.CO W.1 Y.COM W W W W W .T W .100 W.1 Y.CO M.T .100 OM W O W W C . W C W Y W W W WW .100Y. .100 M.T .100 W M.T O W .C O W W C W 00Y WW .100Y. .TW 1 WW .100Y.C M.TW . M W O W O W WW .100Y. WW .100Y.C M.TW WW .100Y.C M.TW W O W O W WW .100Y WW .100Y.C M.TW WW .100Y.C M.TW O WW 00 W WW 00Y.CO .TW C . W W W Y W W .1 .T 00 W.1 Y.COM W WW 0 W.1 Y.COM W W W W W .T 00 W W.1 M.T .100 W.1 Y.COM W O W W 5 W C . GND W W W WW .100Y .1 .100 30 OM.T AVCC M.T W 29 O WW W C . AGND W C W . Y W W W 0 Y W .T W 9 .100 .T .10 3 OM WVCC WW WGND Y.COM W C . W W Y W W 26 0 W T . 0 0 VCC W 17 .T .10 W.1 13 Y.COM W GND OM W W C . W W Y W VCC-IO W M.T .100 M.T .100 O W O W C WW .100Y. WW .100Y.C M.TW W O W WW WW .100Y.C M.TW O W WW .100Y.C M.TW O W WW .100Y.C W WW 2 C8 27pF USBVCC 27R C6 10/10 Tant R2 27R USBVCC R3 R5 100K Populate for DLP-USB232M RESETO# FB1 240-1018-1 C9 27pF Board ID R6 100K Populate for DLP-USB245M .033 C7 1.5K 3V3OUT R4 RESET# R8 2.2K 6 8 7 5 27 28 4 32 1 2 31 R9 470 USBVCC U1 3V3OUT USBDM USBDP RESETO# XTIN XTOUT RESET# EECS EESK EEDATA TEST CS CLK DI DO FT232BM 1 2 3 4 U2 93C46 R7 10K VCC NC NC 8 6 7 VCC_IO C2 C1 .1 .1 .1 .1 25 24 23 22 21 20 19 18 16 15 14 12 11 10 C3 C4 TXD RXD RTS# CTS# DTR# DSR# DCD# RI# TXDEN PWREN# PWRCTL TXLED# RXLED# SLEEP# USBVCC TXD RXD RTS# CTS# DTR# DSR# DCD# RI# TXDEN POWEREN# PWRCTL TXLED# RXLED# SLEEP#