數(shù)字電子技術(shù)2

1、特殊重要特殊重要BCCAABBCAACAAB)( BCAABCCAAB)1 ()1 (BCACABCAAB注意：基本公式反映是邏輯關(guān)系，而不是數(shù)量關(guān)系。在運(yùn)算中不能簡單套用初等代數(shù)的運(yùn)算規(guī)則。BAABBDCBCDBCD)(LL0CDBALL)(BA)(DC1EDCBALLA)(CB ED DCACL乘積項(xiàng)乘積項(xiàng)與或表達(dá)式積之和1AACBACBAL1)(CCBABA)()(2CBCBACBBCALCBACABCBAABC)()(CCBACCAB)(BBAA)()(2CBCBACBBCALCBBCCBBC )(CBCBCBCB同或異或CB CBCBAABA)(FEBCDABALBA)(FEBCDA

2、BALBABABAACBCAABLCBAAB)( CABABCABCBCAABLCBAACAAB)(CBACABCAABBCACACABABCAABEFBEFBABDCAABDAADLEFBEFBABDCAABAEFBBDCAAEFBBDCACDBADCBAABDDBADABLCDBADCBAABDDBADABL)()(CCDBADBADDABDBADBAAB)(DDBAABBAAB BAAB BAAB BAAB用或非門實(shí)現(xiàn)CBACBALCBACBALCBACBACBACBACBACBACBACBACBABCAABACBA)(CBA二、最小項(xiàng)的性質(zhì)CAABCBAL),()()(BBCACCAB

3、BCABCACABABC最小項(xiàng)表達(dá)式7631),(mmmmCBAL)7 , 6 , 3 , 1 (),(mCBALABCBAABCBAL)(),(ABCBAAB)(ABCBABA)(ABCBABCACABABCCBABCA7653mmmm)7 , 6 , 5 , 3(m函數(shù)名變量名 )15,14,11,10, 8 , 4 , 3 , 2 , 1 , 0(),(mDCBAL)(),(DCBADCBADCBAL)()(DCBADCBADCBADCBADBCADCBADCABABCDL)0 , 6 ,10,13,15(m)0 , 6 ,10,13,15(mLDCBABCDA+BCDADCBABDA例：)15,13,10, 8 , 7 , 5 , 2 , 0(),(mDCBALABCDDCABBCDADCBAABDBDABDDCBADCBADCBADCBADB),(DCBALBD+DB例)15,12,10, 8 , 5 , 4 , 0(),(mDCBAL)15,12,10, 8 , 5 , 4 , 0(),(mDCBALDCCBADBAABCD可以重復(fù)畫圈，但必須包含新項(xiàng)！不能漏項(xiàng)，可以單獨(dú)畫圈！例)1513,115 , 30(),(mDCBALC DBCDBD