PL2303中文資料已整理(無(wú)水印)

1、PL2303USB轉(zhuǎn)RS232控制器一、產(chǎn)品特性：1.完全符合USB規(guī)范2.0（全速兼容）片內(nèi)擁有USB1.1收發(fā)器，5V轉(zhuǎn)3.3V的穩(wěn)壓器，12MHz的晶體振蕩器支持RS232這樣的串行接口1）全雙工發(fā)送器和接收器（TxD和RxD）2）六個(gè)調(diào)制解調(diào)控制引腳（RTS，CTS，DTR，DSR，DCD和RI）3）內(nèi)容可以為5，6，7或8個(gè)數(shù)據(jù)位4）支持自動(dòng)握手各種模式5）一、一個(gè)半，或兩個(gè)停止位6）奇偶錯(cuò)誤，幀錯(cuò)誤和串行中斷檢測(cè)7）可編程波特率從75bps到6Mbps8）外部的RS232驅(qū)動(dòng)下降控制9）獨(dú)立的串行接口電源寬廣的流量控制機(jī)制1）自動(dòng)與CTS/RTS流控制2）自動(dòng)使用的XON/XOFF

2、流量控制3）入站數(shù)據(jù)緩沖區(qū)溢出檢測(cè)可配置的512個(gè)字節(jié)雙向數(shù)據(jù)緩沖器1）256字節(jié)的輸出緩沖區(qū)和256字節(jié)的輸入緩沖區(qū)2）128字節(jié)的輸出緩沖區(qū)和384字節(jié)的輸入緩沖區(qū)支持從遠(yuǎn)程輸入相關(guān)調(diào)制信號(hào)進(jìn)行喚醒功能兩個(gè)通用的丨/O（GPIO）引腳啟動(dòng)時(shí)可以將配置存儲(chǔ)于外部的EEPROM提供支持Windows和MacOS，Linux和WinCE的驅(qū)動(dòng)程序具有專(zhuān)為WindowsXP驅(qū)動(dòng)程序認(rèn)證的標(biāo)志該IC是SSOP封裝的小尺寸28引腳二、簡(jiǎn)介：PL2303是Prolific公司生產(chǎn)的一種高度集成的RS232-USB接口轉(zhuǎn)換器，可提供一個(gè)RS232全雙工異步串行通信裝置與USB功能接口便利聯(lián)接的解決方案。該

3、器件內(nèi)置USB功能控制器、USB收發(fā)器、振蕩器和帶有全部調(diào)制解調(diào)器控制信號(hào)的UART，只需外接幾只電容就可實(shí)現(xiàn)USB信號(hào)與RS232信號(hào)的轉(zhuǎn)換，能夠方便嵌入到手持設(shè)備。該器件作為USBRS232雙向轉(zhuǎn)換器，一方面從主機(jī)接收USB數(shù)據(jù)并將其轉(zhuǎn)換為RS232信息流格式發(fā)送給外設(shè)；另一方面從RS232外設(shè)接收數(shù)據(jù)轉(zhuǎn)換為USB數(shù)據(jù)格式傳送回主機(jī)。這些工作全部由器件自動(dòng)完成，開(kāi)發(fā)者無(wú)需考慮固件設(shè)計(jì)。通過(guò)利用USB塊傳輸模式，利用龐大的數(shù)據(jù)緩沖器和自動(dòng)流量控制，PL2303HX能夠?qū)崿F(xiàn)更高的吞吐量比傳統(tǒng)的UART（通用異步收發(fā)器）端口，高達(dá)115200bps的波特率可用于更高的性能使用。三、對(duì)應(yīng)引腳圖方案

4、：引腳名字類(lèi)型引腳描述1TXD輸出數(shù)據(jù)輸出到串口；2DTR_N輸出數(shù)據(jù)終端準(zhǔn)備好，低電平有效；3RST_N輸出發(fā)送請(qǐng)求，低電平有效；4VDD_325電源RS232的電源，為串行端口信號(hào)的電源引腳；當(dāng)串口為3.3V,這應(yīng)該是3.3；當(dāng)串行端口是2.5V,這應(yīng)該是2.5V；5RXD輸入串口數(shù)據(jù)輸入；6RI_N輸入/輸出串行端口（環(huán)指示器）；7GND電源接地；8NC無(wú)連接9DSR_N輸入/輸出串行端口（數(shù)據(jù)集就緒）10DCD_N輸入/輸出串行端口（數(shù)據(jù)載波檢測(cè)）11CTS_N輸入/輸出串行端口（清除發(fā)送）12SHTD_N輸出控制RS232收發(fā)器關(guān)機(jī)13EE_CLK輸入/輸出串行EEPROM時(shí)鐘14E

5、E_DATA輸入/輸出串行EEPROM數(shù)據(jù)15DP輸入/輸出USB端口D+信號(hào)16DM輸入/輸出USB端口D-信號(hào)17VO_33常規(guī)3.3V電源輸出18GND接地19NC無(wú)連接20VDD_5電源USB端口的5V電壓電源21GND接地22GPO輸入/輸出通用I/O引腳023GP1輸入/輸出通用I/O引腳124NC無(wú)連接25GND_A模擬地鎖相環(huán)26PLL_TEST輸入PLL鎖相環(huán)測(cè)試模式控制27OSC1輸入晶體振蕩器輸入28OSC2輸入/輸出晶體振蕩器輸出四、支持?jǐn)?shù)據(jù)格式與編程波特率發(fā)生器1.PL-2303USB轉(zhuǎn)RS-232控制器支持常用的數(shù)據(jù)格式和可編程的波特率發(fā)生器，支持的數(shù)據(jù)格式如下表：

6、Table2.SupportedDataFormatsDescriptionStopbitsParitytypeNoneOddEvenMarkSpaceDatabits5,6,7.&162.波特率發(fā)生器支持高達(dá)1.2M的波特率：Table3.BaudRateSettingdwDTERateBaudRate0012C000M1228800OOOElOOOh921600000960001161440000070800h460S0000Q33400h230400000lC200h115200OOOOEWOh5760000009S00h3840000007080h28800OOOOlBOOh19200

7、OOOO304Oh1440000002580h960000001C20h7200O0D012C0h4800OOOOOEWh360000000960h24000a000708h1800000004BOh120000000258h6000000012Ch30000000096b1500000004Bh75五、外接EEPROM與器件的配置PL2303允許保存配置數(shù)據(jù)在外部EEPROM,復(fù)位后，通過(guò)檢查EEPROM的開(kāi)始兩字節(jié)，如果值為067Bh，EEPROM內(nèi)部數(shù)據(jù)被認(rèn)為是有效的配置而讀入內(nèi)部作為芯片的典型設(shè)置，否則，將使用芯片默認(rèn)設(shè)置，EEPROM的目錄如下表4：Tabic4,匚匚PROMCont

8、&MNimnDo$criptian1.0tECHKwentiettHHOM：5：jgramiTsj.thesetwoU/les&xnixirJasC67t.Afiarresettiieywlibecheckedforthevalue.Ifmatatied,thefollowingnfarnn3,：0n11DeloscedaslhedfaJlDararreters3.2VIDusevendorid54PIDPrcduc:ID76RNReleanumherBwD10-8OCRDeviceConFigufsuonRgieterNameBite|Dofiiiiilionofuh.23RESERVEDR

9、eMted022Tra_ouTRS-Z3-2OutputTn-state:1.RS-232oulpuiUi-sEartB0:RS-232oulpuliiautpirtmodeQ21RW_I-AODERemoieWhKbupMorfe-0_WHone-n-gzagcromDlswakoupitirado-wizsisLWEdisconroffijigral1:WhteneTfegagcsremote-wnikoup.thedeviceioeucarewysEttozeroD5:4RTSMRTSControilMethod:DObRTS油uoEibulBed：byCtrahofBiLMap.Sig

10、nalivo-bvelow_01RTSisoontrcrilEaCyConiroLBllMap.Signalrsactivehlghn-DriveRT&aedvexvhenDowistreamDaftaBufferisNOT曰卅尸TY;oOierwise口meRJ5inactive.DriveRTSinadiwEwhenDownstream.DiaEaBufferisNOTEisIPTY;aCherwiseDriveRTSaolrwe.D3dRESERVEDAhwayssettnzefd0RSPDM&S-Z32TranscsrverShut-DownMode_1:Shirtdownthetra

11、nsceivervwtienUSBSBJSPEMDis*號(hào)口打和md0.DonotshuldowntticIrins-c-oiQ-TovensmenUSBSUSPEND宙angaged!t六、電氣參數(shù)1.極限參數(shù)：Table8-1AbsoluteMaximumRatingsitemsRatingsPowerSupplyVoltage-0.3to5.5VInpulVoltageof3.3Vi/0-0.3toVO33-0.3VInputVoltageof3.3V/owith5VToleranceI/O-D.3toVDD5+D.3VOutputVoltageof3.3VI/O-0.3toVO33-h

12、O.3VStorageTemperature-40to15DcC2.直流特性Table-2OperatingVohageandSitspendCurrentParameterSymbolMinTypMaxUnitOperatingVoltageRangeVDD53.655.5VRegulatorOutputDrivingCurrent(VDD5=5V)kcD150mAOperalingCurr段門(mén)中Ccnsunpiian；heW15mASuspendCurrent1皿s40045GmA1)3.3v的I/O引腳Table8-2-13.3VI/OPinsParameterSymbolMiBTypM

13、axUnitOutputDrivingCapabilityIdd4mAOutputVolsagea扌ReguFatorVD333.03.33.6VInputVoltage(CMOS)Lowvt0.3*VQ_33VHighVnG.嚴(yán)VO33VInputVoltage(LVTTL)Low冷O.flVHighVm2.0VSchmittTriggerThresholdVoltageNegativegoing推j.-1.2VPositivegoingVi-2.12.5VOutputVoltage,3.3VLowVc*0.4VHigh：Vow2.4V2)串行I/O引腳Table8-22aVDD3253.3

14、VSeriaft/OPjnsParameterSymbolMinTypMaxUnitOutputDrivrngCapabiHtyIdd-4mAPowerSupplylorSeriaiI/OPinsVDD3253.0333.6VInautVoltageLow%0.8VHighV|H2.0VSchmittTriggerThresholdVoltageMegativegoingV-.0.81.1VPosiiivegoing.V&.-1.62.0VOuiputVoltageLowVol-0.4VHigh爍2.4VTabJe8-2-ibVDD_3J5(2.5VSerialI/OPinsParameter

15、SymbolMrnTypLMaxUnitOutputDrivingCapabilityIdd-2.6mAPowerSupplyforSerialI/OPinsVDO3252.252.52.75VInputVoltageLowvJL-D.25TVDD_325VHighV|H0.7*VDD325VSchmittTrigger7hresholdVoltageNegativegoingu.G.25*VDD_3250.84VPosiSvegoing%-1.31O.rVDD325VOuSputVoltageLowVol0.4VHighVm1.85VTable8-2-2cVDD3251.8VSerialI/

16、OPinsParameterSymbolMinTypMaxUnitOutputDrivingCapabilityIdd-1.4mAPowerSupplytorSeriail?OPinsVDD3251.651.81.95VInputVoltagsLowVlL-0.25*VDD_325VHighV|H0.7*VDD325VSchmfttTriggerThresholdVoltageNegativegoingvt.0.25*VDD_3250.6VPositivegoing科+-1.04D.7*VDD325VOuiputVoltageLowV6L.a.4VHigtiVqh1.25V3）時(shí)鐘特點(diǎn)：Tab

17、le8-3ClockCharacteristicsParameterMiniypMaxUnitsFrequencyofOperation11.97612.00012.024MHzClockPeriod83.183.383.5nsDutyCycle455055%4）溫度特點(diǎn)：Tabie8-4TemperatureChsractensticsParameterSymboMinTypMaxUnitOperatingTemperature-40(11B5lbDcJunctionOperationTemperatureTj-4025125CNote:(T：-Teslcondrlicn:Baudrale1

18、15200bpslooplesting(40&3btesdoop.randomulixGxFFd-atatrans&rjaver33minuses5）漏電流和電容Table8-5LeakageCurrentandCapacitanceParameterSymbolMinTypMaxUnitInputLeakageCurrentII-10110llATri-stateLeakageCurrentIqz-j110pAInputCapacitanceU|N2.8pFOutputCapacitanceColt2.74.9pFB?-directronaiBufferCapacinceCbid2.74.9pF6）上電復(fù)位3DAtRES=lewFigure8-1Power-OnReseDiagramTable8-6Power-OnResetDescriptionandConditionSymboEMiniypMaxUnitPowersupplyvoltageVCC2.83.34.GVVCCriserelaxvoiageg1.82.32.aVPoweroutputlow