数字电路基础-门电路

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1、22--1122--2222--33TTTTLL22--44TTTTLL22--55CCMMOOSSTTLMOS:CMOS22..11PNPNPPNNIFPNPNPNPNPNPNPPNNISISccNPNbbeeNPNPNPi/mAC1VCCRRceRRceQIIBQCQOu/VCEUVCEQCC22..22+12VADABFDRBDRAAF12VDBF=A+BBuuuABFABF0V0V0V000F=AB0V3V0V0103V0V0V1003V3V3V111()+12VRcFF=AATRA2.3TTLTTL+5V

2、R1R1304k2R41.6kT3T1DAT2YT41kR31+5Vi/mAiIIHu/V1F012iii1IILIuiISI(40A)IHI(1.6mA)ISIIL2+5VRuUu=1iiTiuiRRiiui=R+R(5Ube)=1.4ib1+5VRonRR>R(2.5K)ub1ioniRoffiT1RuR

3、Lmax1ViUOLu/V01UU2iffonU(2.4V)ffU(0.8V)onuUoOHUT()UOLuUT=1.4VUiT01110111IIOLILIIOHIH+5V+5V+5V+5VRb1RTb14T04IIIHOHT1T11T5IOLIILT5IIL&IIHIOL&1IILI0&OH1IIH1&IIL&IIH&IIL&IIH&I=NIOLILIOH=NIIHN=IOL/IIL=16/1.6=10N=I/I=400/40=10NOHIHI1.6mAILI40AIHI16mAOLI0.4mAOHV0.4V(

4、10)OLV2.4V(10)OHA50%1AFF50%ttPd2Pd1Atpd1Ftpd2t+tpd1pd2t=pd2OCOC+5VIF=FF12TT54F1F11T,15F?FF+5VT5120T4F2T5+VOC+5VCCR2R1RCATT2F1BTC5R3OCRVCCCA&FAFBBOCVCCRCA&F1BFC&F2DF=FF12RCVCCRCOC1IRCIIIHOH&&ITOH5&U&nOHm&&U=VIROHCCRCC=VCC(nIOH+mIIH)RCRCUOHVUCCOHminUOH=UOHminRCm

5、ax=nI+mIOHIHVCCRRCCIRCIOLIIL&&OC0&U&0nOLm1&&U=VCC-(I-mI)RCOLRCIL1RIUCOLOLVUU=UCCOLmaxOLOLmaxR=CminI-mIOLIL+5VR2RRD41GT3TTT24A1FBT5R3R5112G=0F=AB3G=1T2T5D,TT342A&AABFBBFENENENENEN=0F=ABEN=1F=ZZAAA&FBFBBENENENENEN=1F=ABEN=0F=ZZ3A1G11FENA2G12ENEN1DI1ENDBDO1ENETTT

6、TLL()/ns/mWTTL(74)1001010TTL(74H)132622()TTL57319(74S)TTL199.52(74LS)148148&&&&&171774LS0074LS3024822--55CMOS1CMOSVVDDTN+

7、VTP

8、V=

9、V

10、TNTPVDD1Vi=0VTNTPTPVOVDDVVIOTN2Vi=VDDTNTV0VPO2.CMOSVDDVDDTP2TP1ATP1FBTP2ATN1FBTTN1TN2N2MOSTN2VTP-2VEN=Hui012345VTNTPuo012345VEN=L

11、MOSCMOS1CMOS40002CMOSHC3TTLCMOSHCTCMOS1V=VV=0OHminDDOLmaxCMOS2VV/2V=V/2thDDiHminDD3V/2DD4CMOS1mW/5CMOS50CMOSTTLTTLCMOSThisdocumentwascreatedwithWin2PDFavailableathttp://www.daneprairie.com.TheunregisteredversionofWin2PDFisforevaluationornon-commercialuseonly.