跟我学数字电子技术.pdf
?-?http:/www.c51.cn? ?-? 1 ? ? ? ? ? ? ?!?“#?$? % ?:“#;H4 ?FGA; ?E ?IJEKL?IJE ?AMNODPE ?ABC-.DE4-. ?QQQ R;) 01?./? ? g?hijkB?lmno?p?qr?s?tuvv?0?w$%?x yng*z?|x o?g?h?lm=?y=?n? ?NO9?P ?QIJ ?NP?R? ?S?HT?U? ? ?VNO9?P g? 0?w$%?x ?NO9?P W?XYZ?=?F?R?F ? ?#_?1?0?x abNO?cd?r?%?O?y?¡?¢?x £$?%?eQK?¥§?x ¤'?“«?fi ? ?eQx f g ? ? fl ? ? ? ? «·?¶? ? ” § ? / » ? ?««? ?¿«Q«?¿«?«?¿?«?¿«««?¿?«? ?;?)_ab)cdeb0?GBC? ( 1! N=f 10110.101g B=f W gD ? N=1*2 4 +0*2 3 +1*2 2 +1*2 1 +0*2 0 +1*2 - 1 +0*2 - 2 +1*2 - 3 =16+4+2+0.5+0.125 = f 22.625g D )!*?$%+“#? ?X P?hijhBk?l,?-.?/?-.? , ? - . ! f m ? n ? g oKLu ov?wd?x?n3p?BCm?)oq?rspBC?wtu yzv?,|e?_?xs,?q?c?pBC?u /?-.! fm?g ou ov?d?jh?3pBC?m?)o?jhrspBC?jh?w?u yzv?)|e?jh?s?e?e? 3 ? 4 ?)?“0”)_o?ABC?TU?FBC?GHBCl? 0?1?$%7!?t?”?b?)?»tB? ?B? ?*V?S?HT?U? KL?¿?8,?´?h,?I8?RS?´¯VW !?2?= ?¿?8?M?o?“+”)´?“-”)J? ?I8)-¨?¸?)KLco“+”1“0”)“-”1“1”?AB ?RS?VW“«2X ? ?+X0X0X0X ´?-X?1Xf2n-1g+X2n+X f g?¿«¨ 0v«¨ ?/ y?=? ¿«¨¸?««?v«¨¸«?«« y?=?¿«¨¸ ?««? v«¨¸ ?¨?v«¿v««?««««?«« y?=?¿«¨¸ ?««? v«¨¸ ?¨?¿v««?««««?«? ?-?http:/www.c51.cn? ?-? 7 )!?CB?26D56 ?s?'¡?)23,?¢,?b? ?!KL?8,?¢,b? ?!?TUs?,?Bk?¢,?P?3 A?+-B?Bk. B?!?TUs?)?Bk?¢,Z?3 A?+-B?Bk. E!FGCB?56HFG2IJ FG!?3?s¢,?#?I?Æ?4?0?rª? ?Ø?º?B? ?/V? ?R'?:?-'?R?N?¡?x ?jjKNP?klm? %?fl ?¡? _ ?xy?/?fl ?y ?K?p?!?x_ ?=?”0?”?x «ne klm ?fl ?%?:? ?R”?¶?%MÆop;q? KNP ? ?K2 L? 842154212421631-1?q 3 ?7321 0000000000000000000110000 1000100010001001001000001 2001000101000010101010010 3001100111001010001100011 6011010011100100010010111 8100010111110110110111001 9100111001111110011001010 f2gMN BCD ?XABC?8? )! OPQR? ?º?D¢,?æ?8)?¿?)o“1”?“0”?o“0”?“1”?ø? ß?5?Phsijhu?ø? ?“1”?sOQR)?“1”¡?sPQR? ?-?http:/www.c51.cn? ?-? 8 ? ?KL?;?IBk?¢,?m?:m?¢,?4¸¢,? P? ?m?)KL“1”)b1?/Ø“0”? P?sX)?¯sX E!abWX “#KL?'?) ?/02?b? KLo/0s?saWX) /0s´?sbWX? ?sKL?8)?N134)1?5)23KL?MN1? ?*V? !?“ ?KL?“6? MOS ?fCMOSg ? !cdeZ+fg P?jA*A=0A+A=1 5DmUjA*B=B*AA+B=B+A 6D?$jA*fB*Cg=fA*Bg*CA+fB+Cg=fA+Bg+C 7DhnjAfB+Cg=AB+ACA+BC=fA+Bg fA+Cg 8Dopj 1fA+Bg fA+Bg=AAB+AB=A 9Dopj 2AfA+Bg=AA+AB=A 10Dopj 3AfA+Bg=ABA+AB=A+B 11D?qa?j fA+Bg fA+Cg fB+Cg =fA+Bg fA+Cg AB+AC+BC=AB+AC ? 13D?j¿A+B=A*B ?-?http:/www.c51.cn? ?-? 12 «?KL?qrZ8?is?jX f1gqrXopj 1 NA AB+AB=A t=AB+AB=AfB+Bg=A=Q f?s B+B=1g f2gqrX?qa?j AB+AC+BC=AB+AC t=AB+AC+BC=AB+AC+BCfA+Ag =AB+AC+ABC+ABC =ABf1+Cg+ACf1+Bg =AB+AC=Qqu |?¡?2?R?yo“#-?rfl =-j?x ?$%?2?3? · ? / A? · K A B?/x?CÆ?./n)ÆD?B?/x T?3?3?¡?EF%2?R? ?E42g)´B?:?3? · r?“?)“¿?“¿?)“?“? )“«?“«?)“? ?)?)?GHO? ?HO?3?3?x ?V?jO “#;?v?b)?R? 3!nop2?k ?Y?-?ys?a?)?R? 1?0?R? |e?f?b?g ?!nopH2?/?2? ?-?http:/www.c51.cn? ?-? 14 ?! 21?ba$?b?,)22?b?a$?i?b?,)3?)2n ?b?a$? n ?b?,? ba?f1g(?f2g?;$f3g?b 1:“WXlm (!yC F=BCD+BC+ADC+ABC+ABCf1R?g f1g1?R?-?X f“«Rg f2g?j“1”?f'¡?X?¡?u¢£#)J;=?M?G? «?R?“#;c?x ?G? ?“#9/x ? ÆP*“#9/x ?e¿?¿e?¿e ?·?¿?¿? NAX?f“QR2g ? N?X?“?§B? ?r?CÆgn?“F?;?XNO¸?Z ¨?Æ?fl ;?X?Æ?Z ?ª?Q¶X?§?Z ?$%?()¤?En?vvvvvv¤?Ex y?“#?O?¶¯9X?Z?cr ?Q?¤ ? ? ? « ¤ ?E?S? #?2D«.62 « !“#?yn?V?!Qr'?A;A;H4 ?hT?c?,9X«Z?;K?H4? ()?E?()L?IJE?f?d%xyn?z?-?lm?Rj./ ?0 o?j?iFG?G?E0L?IJE?S?f?H4 ? ? ? ? ? ? ?S?f?d%x o?n?g?h?lm?=?y=?n? ?E ?IJEKL?IJE ?AMNODPE ?V?9?2 ?/0”»?s?¨? P?r1?:?/0”»?u ?/0”»?¯Bkhu «?ZP? ?2.?! ?B?hs? 2 ? 2 ? B?¨2?¥LD?)?c?BC? 2 ?¨c?Bs 2n ?¨?Z8 n sfi ?¨?H?u? 2 ?¨c?B? 2n ?¨? ?”»?/0?hs? ?¨?b0?fi ?¨?”»?b?)b0?fi ?¨?T?1?¨?b0? fi ?¨?”»?b?)¿?T? ?´hs?D? ? ?¨?”»fi ?¨?LDABC5?'j?)?¨c?A BC5?'j? ?8?¨?)“VC2?+? ?7?=hs? !?2.? ?¨?“#?r¯KLD?D LD5?LD?) 23?|ABC?¨. ?ABC?B?s 23=8,P?LDs:“R(1)2.LDRs:“R(2)2 Y4D QCnDQBnDQAnrs/0)wD QCn+1DQBn+1DQAn+1 rs/Ø)?R?dØfi ?¨? wD?sX QCn+1=QAnQBnQCn+QAnQCn+QBnQCn=QAnQBnQC+QAnQBnQC QBn+1=QAnQBn+QAnQBn QAn+1=QAn o?d?wD?“1fi ?¨?ABC?¨?3v?Bk,?5 ?,c?1v?K(?R? C),?v?·?KL?3UØ:tHfi ?¨nM,?fi ?¨? J,K -?“P?tfi ? ¨?b?.“?c?3?ABC?¨K. ABC?¨?bZ,fl ?LDR?. 2.? 2n? “#BC? 2 ?,23?qLD,?80o¸?qLDr?a?».? 81?GBC?¨,P|?s:( ) A.?BCB.GBCC.GHBCD.?GABC ?s?Hfi ?¨,23P?B?s 25=32,23§s D ( 2.?H?¨. “# 22CDEX% ø CDE?cDZ? 789?PCDE?WUH? ? ?Ø ? ?Ø ? ?¿Ø ? ?Ø ? ? ? ?Ø ? ?Ø ? ?¿Ø ? ?Ø ? ? ? ?Ø ? ?Ø ? ?¿Ø ? ?Ø ? ? lØ? ?Ø ? ? WUH?H? ø?Ø? ? ø?Ø? ? ø?Ø? ? ?Ø? ? ?Ø? ? ?Ø? ? 2?Rs:“R(2)2 ?¨“#LD?1 ,?qLD,23Pc?Qa?. ?c?5$v?_,?¥B021?LD?8?LD,“?¡?,¥¡l?. ?Qac?¨?J?V-“? ?¶? ? ?Ø ? ?Ø ? ?¿Ø ? ?Ø ? ?Ø ? ? 2?“#;/Ø2 Oc æØ?I?B?¯)l Oc=QAQBQCQD*T=1? ?!“# T214 “?2)?3?1?“?BC?¨?P?3? T210 ?SN1? ?¨? ( 1.1 T214 ?2«?FBC?¨. ·“?FLD,¡_?LDs?,?¨/Øs“0111“?,?“?“? ?2, LD=0,?”»,?¨?s“0“,P?Rs:“R(3)2 ·“?8QF8LD:?“0011“¨,?¨/Øs“1010“?,?“?“?2 LD=0,? ?”»,?¨?s“0“,P?Rs:“R(4)2 ·X?¨,?H?,J?¨?8?j!)?¨?1?0ABC5?)?¨n(? ¨?“M)?Y? ?-?http:/www.c51.cn? ?-? 38 !¥? ?¨81?¶j!?fi ?¨)?fi ?¨fl ?ABC? ep?P?hsX:?8? :?Xep?º_|eofi ?¨?sb0?º)?»ºD? 8?Xep?º?)?1#“0“”»o2?fi ?¨Ø#s“0“,NA?ofi ?¨?sep?º? )!§?¥? ?¨(?i?“)?”»?r1«)?“t?)¡?st)? ?sQ? ?¨(?:“?s:?¨)l?t?Q?s8?¨? ?¨?)?sP?LDø“?C? (:·4Ds“001“P?wDfl ?i?,h¤?:“000“?“010“,?Ø4¤?)*,¥¡c?ß . E:Z+§?¥? 1.?,-./? T454 T454 ?1?./?7?¨) P“? R-S fi ?¨?¸?8?¨? P?¯sX f“Rf1g2g #2?! f“f2g2g ¤'?!?VC2 Cr=0 ?)¥l?) ZPVC2?u £!? CP “w?VC2 S0S1uS1S0=01 ?)¡?¨t,SL ?fl §?k?º?/0 2,SR?§?k?º?/02? 2.,-0? ?¨c?.3?¨s?«?¨.P?¨m b?,?P?LDø?,?P?LD?.?. #2?: º?ØLD?u º?Ø?-?u º?i?¢1¨!)?Ø?R? (1.1 T454 ?3ZP?!? 6 +?¨. f1g“HLD)PL?LD?X“Rf1g ?-?http:/www.c51.cn? ?-? 39 ºLD?R)KL?RsX“Rf2g f2g“MHLD)PL?LD?X“Rf3g ºLD?R)KL?ØP?RsX“Rf4g ?#V?5?1C2 ?¯?.?”»r1«?=?¿?ABC?¯.?¿?¯?¨!c?s ?¯?¿¨.º?«?,P?hs§?e?ei. :§?e?·?¶? 1.,-0?12345?6? +?¯?¿¨?“?¨?$?ijh«?)?$?/Ø)rs?¨? k/0?“ n ?¨«?¯?¿¨2?¿?¯?=sXP=2n 2.,-0?12345?(KL?·?zr) f g? ?«««?« AMNODPE ?¯?¨?,?ظ?LDR,?Ø?. P=8)?fl |,?¯?h(?F8LD),P?TU?:“R(1) ?rØ ? ?rR?“R? “R?fl Bkt?r?3? Ø ? ?_º?¨?2?1?“? º“?¨?4 ?P?Rs?“R? ?-?http:/www.c51.cn? ?-? 40 ?·?KL?4+?¯?¿¨? ?b?. ):?e?·?¶? 1.?0?12345?6?789 ?+?¯?¿¨?¿?¯,?+?¿¨2?“.?+?¯?¿¨?“ ?¨?$?«?)?= P c?¨? 2.?0?12345?(?·?zr) f g? ? ?¯?¿¨ “#?=? ?)23?1 ? ? ? ?¨) ?1F“?º“?¨?4?/Ø)o?¨ ?/Ø2rs?º“?¨?=?,? P?RsX“Rf?g ? ? ?n?p?r?H$-j?x?)?;?x ?-?http:/www.c51.cn? ?-? 43 #2?!?¿?,?”»? )!¸?fg Y 555 ?8? 2)6 ?e)c«?K()E F?;. G?¶g ?jHI mÆl ?IJyz?6?ª?9? ?mÆl ?I(? _ ;?!n?pNx % crNfl ? ?0N? ?y? ”?=? ¨ ?0 ¨?2?k?k ? ?k ? ?k ? ?k ? ? y?ÆnK?!?p?)?·M?;. G?;E F?%./? ? ?kX ?·?$?Z fg?t'_?;?!?p?Ju;.?vK¤?!?p?¯9X«Z ?¥d?Æ¢A? G?d? _e ?§Æ G? ?s u0=-ER/2n*B,/0ABC?d u0?sX D2D1DO=000 ?X u0=0 V D2D1DO=010 ?X u0=2 V D2D1DO=101 ?X u0=5 V D2D1DO=011 ?X u0=3 V D2D1DO=100 ?X u0=4 V D2D1DO=001 ?X u0=1 V º?d u0?RsX“Rf2g2 ?6?ª =Ln;?=L?Nk?Æ. M?KN+? Æ. M?·xy%./? 6?ªØ?Ø?g? ?”g?X ?!?p?Z ?V? _ n:¢ANO?pNO?E?¶ Æml ?+!? Æml ?-.?z _ ;?$?#=:)?yn?º?H?-.0s(H?-.xcr?5? ?;nNNO?#?34 _ ?;?P?g!;x _ ;?/TV?$? ?yn:)v;?¢ANOØ?)K¢A?)?·?Q?y? ?p?xg!?$n%?E?y?¡?E/x y?S?n?S?R0fl ?/0?STU?* x ?-?http:/www.c51.cn? ?-? 45 æ?;.K)v;NO?s·?p?x y?S?n?S?R0?/0mV;?x f g¢?;P?WWWW ? WWWWWW ?WWWWW ?WWWWWW ?x 89n?)?;?5? ? o?p?r?%?JXN?E?¡?JXExJXEn?VJXS:)?J XS?J%?x?$?-?qT?:)?¡g)? ?-?p?y?P?¡?pGx?J%?PpG? ?V j ?JXS?¡J%g?p? ?JXS?NSxJXE?m?np ? KpG ?Y?g*nJXErP?JXS?x g?h?ZJXE ab?a?b_a?cd%0?“#?M efeaba_c?fbF?aax o?g?h?lm=?yn? ? ?¡ ?V?Æ ?¡ ?V? ?¡ ab o?p?r?d%fl =(xo?%?y?ZÆN?4?!Nx ? ?+! ab ?;?P?ij#=? ? yn?VJdSeM?)? ?JdS? ? x øfl ?2?yn:?!?¤)¥d?ª?NO?ª?NO?:'JdS ?Jd?rÆ?:JdoS?NBf?ƨ?Ex ?ßA2?yn?ƯE0cD?Æ?Uª?x? ? ?¡?a f g?«?lm% ab ;Æ?x ?-?http:/www.c51.cn? ?-? 46 ?r?Ư9/? ?¿? ?¿? ?¿? ?¿?¿? :?“#? 2?¤?E ?g?Nk_?¥¤?n:“#3 ?Kvv?ij?/Æ?x? ?¤?E?)?!?Nk_c D&K&?Z?JX?cD&?&? ?g)?)ªP?Æ3?x #? ? JXE?m?np?KpG?Yxab ?§=?p?§0?§?§?pG?§x ?V?Æ ?¡ o?% ab ?y?¤?En?R?3?s56?Vkª ab lm?Yx?ª?|g?%?3?s56?E?nnef ?Æ ef n?o?“#E?xy?o“#&K&?&?&?M?s?F% ef?TH ?cD:“#0A“#x ?-?http:/www.c51.cn? ?-? 47 f?g?% ef cD?“?E “?E?N6“#9/?J?h? ?_?¿_?¿_?¿_? _?¿_?¿_? /r?p?Y_?yn? e?_?e?_?e?_?e?_? e?e?_?e?_? ?B?Æ ef “?E?M?9? ¯9«? ?ef ¥¤?&K&&?&?M? ab¶ ?-?