數(shù)字電路實(shí)驗(yàn)Multisim仿真匯總

1、實(shí)驗(yàn)一邏輯門電路、與非門邏輯功能的測(cè)試74LS20（雙四輸入與非門）仿真結(jié)果AdBA-CidB輸入輸出電壓(V)輸出邏輯狀態(tài)ABCDY000051000151001151011151111100二、或非門邏輯功能的測(cè)試74LS02（四二輸入或非門）VCC仿真結(jié)果:VCCXMM12.5輸入輸出電壓（V）輸出邏輯狀態(tài)ABY0051010010001100三、與或非門邏輯功能的測(cè)試74LS51（雙二、三輸入與或非門）仿真結(jié)果：輸入輸出ABCDY0000100011001100111011110四、異或門邏輯功能的測(cè)試74LS86（四二輸入異或門）各一片仿真結(jié)果：輸入輸出ABY000011101110

2、二、思考題1.用一片74LS00實(shí)現(xiàn)Y=A+B的邏輯功能；2.用一片74LS86設(shè)計(jì)一個(gè)四位奇偶校驗(yàn)電路；實(shí)驗(yàn)二組合邏輯電路UIA74LS00DA-B741SOOD74LS00DUSA、分析半加器的邏輯功能74LS00D74LS00DUIAm2.5V74LSQ0DA-B74LSOODUSAvccvcc.74LS00D74LS00D74LS00DUIA2.5V74LS00DmB74LSOOD74LSOODUSA74LS00D74LSQOD輸入輸出ABSCO0000011010101101T!U1S2S3S-1XjNDVC74LS138Ddi蒞X1X2X3X4X5XX7X8S1S2S3A2A1An

3、Q0Q1Q2Q3Q4Q5Q6Q7011111111111111111110000001111111100001101111111000101101111110001111101111100100111101111001011111101110011011111101100111111111103.驗(yàn)證數(shù)據(jù)選擇器的邏輯功能&vU1X12Yc-u1?:.!-!-cccc1111c-_u12_.cccc*-z222y=?K詢LEKeyaw1dbT4.思考題（1）用兩片74LS138接成四線-十六線譯碼器0000U238DKeX=74LS174LS1X1X2X3X4X5X6X7Xflv方叭丁收丁七GL

4、i-&AX15X16XSX10X11X12X13X14we豈-Ef-?i：i-逬1上-&2Ai*4-匹-rbX1?38D0001X1X2X3X4X5XCX7X8m38D38D74LS174LS1刈X10X11X12X13X14X15X169*e*e*e*(Gk占-&A-&2BA-E弋-?i：i-遼進(jìn)GL占.-D2ArJx*4奚-i*Sri0111*-474LS138D豈-E-?i：i-逬1上-&2Ai*4-匹-rbX1?2:g込！GL-沁-1*5-DEB遠(yuǎn)-X1?H-E-S2-S3GND(3)用一片74LS153片74LS00和接成一位全加器LHKoy=d-47（1）設(shè)計(jì)一個(gè)有A、B、C三位代

5、碼輸入的密碼鎖（假設(shè)密碼是011）,當(dāng)輸入密碼正確時(shí),鎖被打開（Y=1）,如果密碼不符，電路發(fā)出報(bào)警信號(hào)（丫2=1）。以上四個(gè)小設(shè)計(jì)任做一個(gè)，多做不限。：zGND還可以用門電路搭建實(shí)驗(yàn)三觸發(fā)器及觸發(fā)器之間的轉(zhuǎn)換1.D觸發(fā)器邏輯功能的測(cè)試（上升沿）.：U-R-；=1CLM-IQHi-、iij：1FLB仿真結(jié)果;-：=ICLlf-IQHi-ii江ELI：74LS74D.：U-R-；=1CLM-IQHi-、iij：1FLB.：LFT-：=IC-Llf-IQill江ELI：.vccmmX1X2gn6k=r-；=ir-LM-IQHi1LELE-74LS74DCPDRdQQXX11-001XX10-101

6、XX1-0110XX0-1110XX0001vccT!mXIX2gn6k=r.:-UE-：=ir-LM-1Qill1-il江ELE-74LS74DTX1X2aIPRPICLM-iQJJLI*MLQ&LRU1A-74LS74D:GN6y=：R：D0RdCPQn+1Qn=0Qn=10110-100111-0001110-111111-0112.JK觸發(fā)器功能測(cè)試（下降沿）VCXtX-2-UIALJ-JJJ1C-LH74LS1I2RVCCVCKey=;SX4X2iC-LXIX-九QJEERKey=Ci74LS112OKeyqrK,VCX1X2Key=;SU1A厶ipp1C-LK:玄Key=Ciix-

7、心QJEER74LS112OKeyqrK,l.T-Key制JJlXIX-2-|Key=RsJzGND：-:KeyrfrK74LS1I2Rx-iemLJ-UiXIX-2-|Key=RsJzGND：-x-iem7+LS112&Q=0略JKSRCPQn+1Qn=OQn=10011Of101lfO012）0111Of1011-0001011Of1011-0111111Of1011-0103.思考題（1）Tri口口曰r40003Qualifier(T)廠57T：ttti4T：tttid1:TTTi$TtniL?TtniL9TtniL9Ttm10Ttm11TtniL11Tmnl3TbuI斗Taeml占Tt

8、nn16ClndifritCli3cJiQuaTrtggQuas-ltlX-3ill-om-UIA74LS112D=1IT:上J-：=1DLK-K-Li-=-lFLF：-3）略實(shí)驗(yàn)四寄存器與計(jì)數(shù)器1右移寄存器（741S74為上升沿有效）5V2-5V2.5VillK&y=DJ474LS112D-IV-itriR-1ST-.-1ft-1O1R-2.3位異步二進(jìn)制加法，減法計(jì)數(shù)器（74LS112下降沿有效）X1VCCKey=R5D-1EB-卜LCLR-X1QU3A74L&112DKeygndVCC25V0ZfiV74LS112D7FROLELH-LCLF.-LES74LS112DtR-*LJ-LCM

9、-1E3-IT:；nLELK-1ft也可以不加數(shù)碼顯示管2.5VJXYi74LS112D74LSII2DJX74LS112D74LSII2D41CLH25VO25V0O：2.5V:hey-R占砂:hey=FR丄刖D:QCDHEX74LS112D74L5112D2.5V.-irr.TxlEIBxlJX&：.-Irr.TxiriEzJ-EU74LS1GDNU2DCDHEX:(2)74LS160設(shè)計(jì)7進(jìn)制計(jì)數(shù)器略3)24進(jìn)制7+LS1WH：GND：.X83進(jìn)制IJ?UAD-XI：-11X帖B醪QQC-3074Lb-16Hi-內(nèi)3BQFcqc-四I174LS-1W3N注意：用74LS160與74LS1

10、97、74LS191是完全不一樣的實(shí)驗(yàn)五555定時(shí)器及其應(yīng)用1.施密特觸發(fā)器R13sGNDvcc68%LM555CMXMM2C1土1OnFvcc-RST-0U7315IHRTRICONGND52廠0XMMlR1XMH12住GNDI5V輸入電壓從零開始增加：LM555CM*inidB11Ii存二XMM2.L1ClztfOnFTHP.GNIT500nVA|爲(wèi)|dB|Ivcc輸入電壓從5V開始減小:ikn:KeysA1:ikn:KeyA4iIJ爲(wèi)I(fIr=-+rt1IrS“fii1V爲(wèi)|曲Ir=-3.35-1.65=1.7V2.5V-!RSTDISTHRCON?GND-ICey=SpaceC2ilOnFR13.9kQvccOUT1TRILM555CIWG1LilOnF單穩(wěn)態(tài)觸發(fā)器3.多謝振蕩R24lOOktl79琢Key=AR13.9kQG210nFETrigrC1L10nFB41七gndKSC1LM555CM:-vcc-R.hTuUTD1hTHRTRICON-GND-0DUL1X3IOSX：l-X:2_M2gE(3J-JIydDDS忙Ei7T11；：P：PW；UI4ULr：(l-l.Il辻IA1399SmZHZbZ:baJdVd旳它：Qp)