《數(shù)字電路課程設(shè)計(jì)》電路圖

1、數(shù)字電子技術(shù)課程設(shè)計(jì)電路圖匯總r12.2kwi5k12r25. ik1r vcclkhzwrdis2| 36 7ociut14r01 r02 s91s9214r01 r02 s91s9214r01 rd2 s91s92cp0cp0cp0ic3ic4ic51cp1 74ls90icp 74ls901cp】 74ls90qo qi q2 q3qo qi q2 q3qo qi q2 q31刃98 in112 198 h112 19 | 811jt '°is_2 36 門2| 3 ev14318do di d2 d3 s14cpu/dth ic1 out 555ic2cp1 74ls

2、90 qo qi q2 12丨9 | ir01 r02 s91s92 cp0r| jl5 丄he j珈叫;nd vcdsdic14 rp 74ls74qrd31 g 125t10v4ic1374ls191llga b c dic1274ls47(48)f g a b c d 4|ae me hoh5ldqo3267712gql q2 q3a b c d ic11 74ls47(48) f g a b c d e141312111031076421ag |bcd- °n5r01 r02cp0ic8cp,74ls92c10 ql q2 q3j 711124112

3、|j14r01 r02 s91s92 cp。2|3ic774ls901211r01r02cpoic6cpi (74ls92qi q2q312 |11918141141312111091076421a b c dic10 74ls47w8) f g a b c d e舐8 °h514131211109107642ia b c dic9 74ls47c48) f g a b c d e附1:多功能數(shù)字鐘總圖r1 68k64r vccw150kr236kdisth ic1 out555vc50. 01po14irezpr10k0.02stisjlt0.25s151312111016vcc

4、irex icex iq 2q 2r 2tr+ 2tr-ic274ls123r01 r02 s91s92 cpqcpiic374ls901298347o811qo qi q2 q3id 2d 3d 4d ycc1514cpxois；0.25slimnkoi e02 s91s92cp0ic474ls90cpiqo qi q2 q312i981417181120 乍 135d6d 7d 8d11141tr- 1tr+ 1r 1q 2q 2cek 2rex gndi 5| 吐 7 疋 4.7uo：復(fù)位開關(guān)°1:計(jì)頻r10kr01 r02 s91s92cp0cpiic574ls9014r01

5、 r02 s91s92 cp0cpiic674ls90129811>129847820|+5v 131417181136d 7d 8dqo qi q2 q3qo qi q2 q3id 2d 3d 4d vcc 5dic774ls273cpjlic874ls273cp11jl_1q 2q 3q 4q gnd 5q 6q25691吐1215161912612j7q 8qa b c dic974ls47 (48)f g a b c d ea b c dic1074ls47(48)f g a b c d e0.02s_1q 2q 3q 4q gnd 5q 6q25691吐121516191267

6、1267q 8q0.02s141013121110151413121110si；a3 f'g eldb8 c uoh5291076411413121110915141312111091076421910764219a b c dic12 74ls47(48) f g a b c d ea b c dic11 74ls47 (48) f g a b c d eahjb附2：數(shù)字頻率計(jì)總圖vcclr 5h 02匸l c4rg/r-5r vccdisth ic1 out555 退nd vcc313任廠+2l6 7r vccdisth ic2out555叫;nd vc3o° bh5 815ql qz q31 一ict74ls191cp d