数电电子钟设计原理

123456ABCD654321DCBATitleNumberRevisionSizeBDate:13-Dec-2008SheetofFile:E:\数字钟课程设计\nclock\nclock.ddbDrawnBy:Vin1GND2+5V3U07805C2104VCCTRIG2Q3R4CVolt5THR6DIS7VCC8GND1U1555C4103R047KR147KTHRTHRP03P14P25P36Q014Q113Q212Q311TC15CEP7CET10CLK2PE9MR1U274LS161A7B1C2D6LT3BI4LE5A13B12C11D10E9F15G14U3CD4511sec1asec1bsec1csec1dsec1esec1fsec1gsec1asec1bsec1csec1dsec1esec1fsec1gR2200VCCsec1Q3sec1Q2sec1Q1sec1Q0sec1Q0sec1Q1sec1Q2sec1Q3VCC123U4A74LS00sec1Q0sec1Q3sec1clksec1pesec1pe10msP03P14P25P36Q014Q113Q212Q311TC15CEP7CET10CLK2PE9MR1U674LS161A7B1C2D6LT3BI4LE5A13B12C11D10E9F15G14U5CD4511sec2asec2bsec2csec2dsec2esec2fsec2gsec2asec2bsec2csec2dsec2esec2fsec2gR3200VCCsec2Q3sec2Q2sec2Q1sec2Q0sec2Q0sec2Q1sec2Q2sec2Q3VCC456U4B74LS00sec2Q0sec2Q2sec1pesec2pesec2peP03P14P25P36Q014Q113Q212Q311TC15CEP7CET10CLK2PE9MR1U874LS161A7B1C2D6LT3BI4LE5A13B12C11D10E9F15G14U7CD4511min1amin1bmin1cmin1dmin1emin1fmin1gmin1amin1bmin1cmin1dmin1emin1fmin1gVCCmin1Q3min1Q2min1Q1min1Q0min1Q0min1Q1min1Q2min1Q3VCC8910U4C74LS00min1Q0min1Q3sec2pemin1pemin1peP03P14P25P36Q014Q113Q212Q311TC15CEP7CET10CLK2PE9MR1U1074LS161A7B1C2D6LT3BI4LE5A13B12C11D10E9F15G14U9CD4511min2amin2bmin2cmin2dmin2emin2fmin2gmin2amin2bmin2cmin2dmin2emin2fmin2gR5200VCCmin2Q3min2Q2min2Q1min2Q0min2Q0min2Q1min2Q2min2Q3VCC111213U4D74LS00min2Q0min2Q2min1pemin2pemin2peP03P14P25P36Q014Q113Q212Q311TC15CEP7CET10CLK2PE9MR1U1374LS161A7B1C2D6LT3BI4LE5A13B12C11D10E9F15G14U12CD4511hour1ahour1bhour1chour1dhour1ehour1fhour1ghour1ahour1bhour1chour1dhour1ehour1fhour1gR6200VCChour1Q3hour1Q2hour1Q1hour1Q0hour1Q0hour1Q1hour1Q2hour1Q3VCC123U11A74LS00hour1Q0hour1Q3min2pehour1pehour1peP03P14P25P36Q014Q113Q212Q311TC15CEP7CET10CLK2PE9MR1U1574LS161A7B1C2D6LT3BI4LE5A13B12C11D10E9F15G14U14CD4511hour2ahour2bhour2chour2dhour2ehour2fhour2ghour2ahour2bhour2chour2dhour2ehour2fhour2gR7200VCChour2Q3hour2Q2hour2Q1hour2Q0hour2Q0hour2Q1hour2Q2hour2Q3VCC456U11B74LS00hour1Q2hour2Q1hour1perestrestrestrestrestrestrestR84.7kVCCrestS0SW-SPSTS1SW-SPSTabfcgdeDPYaabbccddeeffggabcdefgdpdpdpdpGNDGNDDS0sec1abfcgdeDPYaabbccddeeffggabcdefgdpdpdpdpGNDGNDDS1sec2abfcgdeDPYaabbccddeeffggabcdefgdpdpdpdpGNDGNDDS2MIN1abfcgdeDPYaabbccddeeffggabcdefgdpdpdpdpGNDGNDDS3MIN2abfcgdeDPYaabbccddeeffggabcdefgdpdpdpdpGNDGNDDS4HOUR1abfcgdeDPYaabbccddeeffggabcdefgdpdpdpdpGNDGNDDS5HOUR2+C1100ufR4200sec2pemin2peC3104P03P14P25P36Q014Q113Q212Q311TC15CEP7CET10CLK2PE9MR1U1674LS161P03P14P25P36Q014Q113Q212Q311TC15CEP7CET10CLK2PE9MR1U1774LS161VCCVCCrestrestpe110mssec1clkpe1111213U11D74LS008910U11C74LS00Q10Q13q20q23pe1sec1clkQ10Q13q20q23C5105R1110k调到4K左右12J0CON2