数字电路基础教程.pdf

1、?TTL?返回返回返回返回返回返回返回返回作业作业作业作业www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLCwww.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、?。?。?。?。?。www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、? ( SSI )110?10100? ( MSI )10100? 1000? ( LSI )1001000?1000? 10?www.

2、91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、?tP- - -?。?A?。A?T?f - - f = 1/TT?:?。?:?。?tPwww.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、?ABABABUA UBUA UA ?3VDB?UF?UB?3VDA?www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?RCUO?UCCRBUiT?UI 0.5V ?iB IBS= UCC/ / / /RCUO = UOL 0.3VBE、BC?T?bcebce?0 iB IBS

3、?T ?UI?、?、?。?UI?、?、?。www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?aIB?5?RB1?5?500103?0.01mAUB?0IBS?15? RC=15?1005103?0.03mA 0 IB IBS ?T ?RC15Vabc5V?1.5VRB1RB2?cIB 0IC 0T?www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?R1= 5.1K?R2= 20K? RC= 2K?EC?10V?30?UI ?0V、5V?UO?。?。?。?。?UBE?0.7V?RCUO?ECR1UI?EC

4、R2?UI=0? ?UBE IBS ?T ?UO0.3Vwww.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、?。?。?0、1?。www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、?98765?10011000011101100101BCD?01000011001000010000BCD?31042?www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC? ? ? ?

5、?www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?。?、?、?、?、?“0”、“1”?。1 ?0 ?1 ?0 ?www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、? ?(A、B)?F?。ABF?U?、?。www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLCAF?VCCRBDADBUA UB UF0.3 0.30.3 3 3 0.3 3 3 0.30.30.33?n?2n ?。F0 00 11 01 1AB0001有有有有有有有有0 0出出出出出出出出0 0全

6、全全全全全全全1 1出出出出出出出出1 www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?&ABF F = A B?。?&? 0 ?0?。? 1 ?。www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、? ?ABF?U?(A、B)?F?。?AF?VCCRBDADBUA UB UF0.3 0.30.3 3 3 0.3 3 3 www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLCF0 00 11 01 1AB0111?有有有有有有有有1 1出出出出出出出出1 1全全

7、全全全全全全0 0出出出出出出出出0 0?1ABF F = A ? Bwww.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?S1?S2。?。?。?1S1S2+5V1K?1K?30?A?0?B?0?F?0?。?. A?1? B?0ABF? F?1? ?。?www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、? ?AF?U?A?F ?。?UFUA0.333RCF?UCCRBAwww.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLCF01 A01?AF = = = =1AF

8、www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、?&ABF BAF = = = =1110F0 00 11 01 1AB?1ABF BAF+ + + += = = =1000F0 00 11 01 1ABwww.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?Z?A、B、C、D?。?Z=ABZ=CDZ=AB+CDZ?VCCRA?VCCRBCDZZ?VCCRwww.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLCABF1?、?A、B、C?。1ACF2&ABF1CFwww

9、.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?TTL?TTL?www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、TTL?UCCFABT1T2T1 - - ?ABT1ABBAF = = = =www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLCTTL?。UOHUOLuOuIUONUOFF?UOH?UOLUOH3.6VUOL0.3V? UOH2.4VUOL0.4V?UON?UOFF?。?www.91HMI.comwww.PLCwww.91HMI.comwww.PLC

10、www.PLCUON?。UOFF?。UON、UOFF ?TTL ? UON?UOFF ?。?N?TTL?。?Nwww.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?tpdtpd?。50?50?UIUOtpd1tpd2tpd1?tpd2?2tttpd2pd1pd+ + + += = = =www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?4?74LS2074LS04?2?74LS00?TTL?GND1B1A1Y2B2A2Y123414131211+?+VCC10985673B 3A 3Y4B 4A 4Y74L

11、S00?www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC? ?www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、?0A=01A=A0+A=A1+A=1AA=AA+A=A0AA= = = = 1AA= = = =+ + + +AA= = = =?AB= BAA+B= B+A?ABC= (AB)C=A(BC)A+B+C= (A+B)+C=A+(B+C)www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?A( B+C )=AB+ACA +B C=(A+B) (A

12、+C)?A?AB?AA?A?B?ABABAA+ + + += = = =+ + + +AB)BA(A= = = =+ + + + CAABBCCAAB+ + + += = = =+ + + + + + +CAABBCDCAAB+ + + += = = =+ + + + + + +?CBAABC+ + + + + + += = = =CBACBA = = = =+ + + + + + +)CA()BA()CB()CA()BA(+ + + + + + + + + += = = =+ + + + + + + + + + + + + + + +www.91HMI.comwww.PLCwww.91HMI

13、.comwww.PLCwww.PLCCAABBCDCAAB+ + + += = = =+ + + + + + +?BCD)AA(CAABBCDCAAB+ + + + + + + + + += = = =+ + + + + + +BCDAABCDCAAB+ + + + + + + + + += = = =)BD1(CA)CD1(AB+ + + + + + + + + += = = =CAAB+ + + += = = =?、?A?A?。B(A+C)=BA+BCB(A+D)+C=B(A+D)+BC=BA+BD+BCwww.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww

14、.PLC?F? ?F?(?)?(?)?1?0?0?1? 。FFCDBAL+ + + += = = =)DC()BA(L+ + + + + + + += = = =DCBAL+ + + + + + + += = = =?。?F?F?(?)?(?)?1?0?0?1? F?F。www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC? ?www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、?A、B、C?,CBA ,CBA ,CBA ,CBA ,CBA ,CBA ,CBA .CBA?。www.91HMI.comwww.

15、PLCwww.91HMI.comwww.PLCwww.PLC?n?m?n?n?m?m?。? ?1? ?0? ?1? ?。www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?。?n?2n?.?8?m0m1m2m3m4m5m6m7012345670 0 0 0 0 10 1 00 1 1 1 0 01 0 1 1 1 01 1 1 ?A B C? CBACBA CBA CBA CBA CBA CBACBAwww.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?F = AB+?C =AB(C+C)+ ?C(B+B)=

16、 ABC+ABC+ ?CB+ ?CB= m1+m3+m6+m7=m(1,3,6,7)?F =AB)CBAAB(+ + + + + + +AB)CBAAB(+ + + + + + + + + += = = =ABCBAAB+ + + + = = = =ABC)BA)(BA(+ + + + + + + + + + += = = =ABACBBCA+ + + + + + += = = =CABABCACBBCA+ + + + + + + + + += = = = m3+m5+m6+m7=m(3,5,6,7)www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC

17、?、?。?利利利利?1AA= = = =+ + + +?BA CBACBA ?+ + + +)CBCB(A)CBBC(A+ + + + + + + + + +CBACABCBAABC+ + + + + + + + + += = = =)CC(BA)CC(AB+ + + + + + + + + += = = =ABAAB= = = =+ + + += = = =?。利利利利?AABA= = = =+ + + +BA )FE(BCDABA ?+ + + + + + +www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?。利利利利?)BB(AA+ + +

18、+= = = =?CBCAAB+ + + + + + +CB)AA(CAAB+ + + + + + + + + += = = =CBACABCAAB+ + + + + + + + + += = = =)CBACA()CABAB(+ + + + + + + + + += = = =CAAB+ + + += = = =?1)BA()BA()BA()BA(= = = = + + + + + + + + + + + + +)BABA()BA)(BA(+ + + + + + + + + += = = =?左左左左?BABAABBA+ + + + + + + + + += = = =1AA= = = =+

19、 + + += = = =www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?: ?EFBEFBABDCAABDAAD+ + + + + + + + + + + + + + + + + + +EFBEFBABDCAABA+ + + + + + + + + + + + + + + += = = =EFBBDCAA+ + + + + + + + + += = = =EFBBDCA+ + + + + + + + + += = = =?: ?)GF(ADEDBDBCBCBCAAB+ + + + + + + + + + + + + + + + + + + +

20、+ +)GF(ADEDBDBCBCB)CB(A+ + + + + + + + + + + + + + + + + + + + + += = = =)GF(ADEDBDBCBCBCBA+ + + + + + + + + + + + + + + + + + += = = =)GF(ADEDBDBCBCBA+ + + + + + + + + + + + + + + + + + += = = =)CC(DBDBCB)DD(CBA+ + + + + + + + + + + + + + + + + + += = = =CDBCDBDBCBDCBCDBA+ + + + + + + + + + + + + +

21、 + + + + += = = =CDDBCBA+ + + + + + + + + += = = =www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?、?。?。m3m2m1m0AB010 1m6m7m5m4m2m3m1m0ABC0100 01 11 10CDAB00 01 11 1000 01 11 10m10m11m9m8m14m15m13m12m6m7m5m4m2m3m1m0DCBADCBADCBACDBADCBADCBADBCABCDADCBADCBADCBACDBADCABDABCDCABABCDwww.91HMI.comwww.PLCww

22、w.91HMI.comwww.PLCwww.PLC?0111?AB010 1A B F0 0 00 1 11 0 11 1 1?F = AB+?C = ABC+ABC+ ?CB+ ?CB=m(1,3,6,7)ABC0100 01 11 www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?2n?n?。111111ABC0100 01 11 10A BBCA Cwww.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLCABCD00 01 11 1000 01 11 10111111111111AD?1. ?。2. ?。

23、3. ?。4. ?。www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC? ? ? ?。?。_CBCBCACAY+ + + + + + + + + += = = =ABC0100 01 11 10A BACB C111111CBCABAY_+ + + + + + += = = =www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?F(ABCD)=(03,511,1315)。111111111111B11ABCD00 01 11 1000 01 11 10CBCD DDCBF_+ + + + + + += =

24、= =DCBF_= = = =DCBF_+ + + + + + += = = =www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?。_DBACBADCADCAABDABCY+ + + + + + + + + + + + + + + += = = =A 1111111111ABCD00 01 11 1000 01 11 10_DBAF+ + + += = = =B Dwww.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC?-?。B)CABD(Y + + + += = = =BCABD + + + += = = =1111111000001111ABCD00 01 11 1000 01 11 10BDCDAY+ + + + + + += = = =BC DA Dwww.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC11ABCD00 01 11 1000 01 11 10?。DCBABDAD CBBAY+ + + + + + + + + += = = =1111111CBADBAF+ + + + + + += = = =B CAB AD ?www.91HMI.comwww.PLCwww.91HMI.comwww.PLCwww.PLC