We can use an algebraic description of the circuit ’ s functional behavior in the analysis of a larger system that includes the circuit. We can determine the behavior of the circuit for various input combinations. 4.2 Combinational-Circuit Analysis ReturnNext We analyze a combinational logic circuit by obtaining a formal description of its logic function. We can manipulate an algebraic description to suggest different circuit structures for the logic function. We can transform an algebraic description into a standard form corresponding to an available circuit structure.
4.2 Combinational-Circuit Analysis NextBackReturn 1. Given a logic diagram for a combinational circuit, obtain the truth table. X y Z F
4.2 Combinational-Circuit Analysis NextBackReturn x y z FRow
4.2 Combinational-Circuit Analysis NextBackReturn 2. Logic expressions for signal lines x y z y z
x y z F Two-level AND-OR circuit y x z z 4.2 Combinational-Circuit Analysis NextBackReturn 3. Sum-of-products expression
4.2 Combinational-Circuit Analysis NextBackReturn 4. Product-of-sums expression
F x y z y x z z Two-level OR-AND circuit 4.2 Combinational-Circuit Analysis 4. Product-of-sums expression BackReturn