Combinational Logic Word Problems

General Design Procedure

1. Understand the Problem

what is the circuit supposed to do?

write down inputs (data, control) and outputs

draw block diagram or other picture

2. Formulate the Problem in terms of a truth table or other suitable

design representation

truth table or waveform diagram

3. Choose Implementation Target

ROM, PAL, PLA, Mux, Decoder + OR, Discrete Gates

4. Follow Implementation Procedure

K-maps, espresso, misII

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