數(shù)電大作業(yè)交通指示燈+電子琴+智能鐘表

、74390構(gòu)成六進(jìn)制計(jì)數(shù)器0.5%100QR1VCCU1vccgOBocODOEOFOGABCDSI蠱亠?亠士CAG3CC811-111CLR皿陽74HC390N6V0.5%100QR1VCCU1vccgOBocODOEOFOGABCDSI蠱亠?亠士CAG3CC811-111CLR皿陽74HC390N6V1274LS47N74390構(gòu)成六進(jìn)制計(jì)數(shù)器5、74390構(gòu)成六十進(jìn)制計(jì)數(shù)器

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