digital clock circuit

Post on 18-Dec-2015

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digital

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  • CKA1CKB4

    MR2

    Q0 3Q1 5Q2 6Q3 7

    U1:A

    74LS390

    A7 QA 13B1 QB 12C2 QC 11D6 QD 10BI/RBO4 QE 9RBI5 QF 15LT3 QG 14

    U2

    74LS48

    CKA15CKB12

    MR14

    Q0 13Q1 11Q2 10Q3 9

    U1:B

    74LS390

    A7 QA 13B1 QB 12C2 QC 11D6 QD 10BI/RBO4 QE 9RBI5 QF 15LT3 QG 14

    U3

    74LS48

    CKA1CKB4

    MR2

    Q0 3Q1 5Q2 6Q3 7

    U4:A

    74LS390

    A7 QA 13B1 QB 12C2 QC 11D6 QD 10BI/RBO4 QE 9RBI5 QF 15LT3 QG 14

    U5

    74LS48

    CKA15CKB12

    MR14

    Q0 13Q1 11Q2 10Q3 9

    U4:B

    74LS390

    A7 QA 13B1 QB 12C2 QC 11D6 QD 10BI/RBO4 QE 9RBI5 QF 15LT3 QG 14

    U6

    74LS48

    CKA1CKB4

    MR2

    Q0 3Q1 5Q2 6Q3 7

    U7:A

    74LS390

    A7 QA 13B1 QB 12C2 QC 11D6 QD 10BI/RBO4 QE 9RBI5 QF 15LT3 QG 14

    U8

    74LS48

    CKA15CKB12

    MR14

    Q0 13Q1 11Q2 10Q3 9

    U7:B

    74LS390

    A7 QA 13B1 QB 12C2 QC 11D6 QD 10BI/RBO4 QE 9RBI5 QF 15LT3 QG 14

    U9

    74LS48

    123

    U10:A74LS08

    456

    U10:B74LS08

    9

    108

    U10:C

    74LS08

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