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MULTIPLE-SEQUENCE DETECTOR DLD Semester Project

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Group Members Muhammad Ammad Siddique (061) Syed Muhammad Zain (117)

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Introduction Multiple-Sequence Detector to detect the following two 8-bit sequences: 10110010 10001011 Using D Flip-Flops Moore FSM Design

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Intoduction (Continued) Total of 15 states Therefore, 4 Flip-Flops needed 1 input 1 output

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Block Diagram

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Work Division Muhammad Ammad SiddiqueSyed Muhammad Zain Equation SimplificationState Diagram Proteus ImplementationState Table SchematicK-Maps Hardware ImplementationDerivation of Equations Hardware Implementation

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State Diagram

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State Table

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K-Maps and Equation Simplification Resulting in the following equations: D A =BC(A’D’x+Dx’)+AB’C’(D’x’+Dx)+AD’x(B’C+BC’) +ACDx’ D B =B’C(D’x’+A’Dx)+BC’(A’x’+AD’x)+A(B’CD’+Dx’) D C =A’B’(CD’x+Dx’)+C’x’(A’D+AD’)+Bx(CD+AC’)+B x’(A’C’+AD’)+AB’C’D D D =B’x(A’+AC’)+D(A’B+AC)+x(A’C’D’+ABC+AD) y = AB(C+D)

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Proteus Implementation Screenshot at the instant when the sequence 10110010 has been detected is on the next page. Present State: A=1 B=1 C=0 D=1 Output=1 (Hence, Correct Sequence Detected)

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Hardware Implementation

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Applications Password checker for various applications like: Turning on the alarm system Opening door for an authorized person only For any simple or complex circuit that shall only be operated by some particular personnel given the correct sequence

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Bill of Materials NameCost/UnitNo. of Units Purchased Total Cost 7404251 7408254100 7411356210 742140280 7432307210 748640280 7426640280 747445290 Breadboard1306780 LED5525 Wire106m60 Wire Cutter2001 TOTAL COST1940

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