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08_muxes - Basic Circuit Elements Readings 6-6.1.1 6.2...

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172 Basic Circuit Elements Readings: 6-6.1.1, 6.2, 6.3-6.3.2 Standard TTL Small-Scale Integration: 1 chip = 2-8 gates Requires numerous chips to build interesting circuits Alternative: Complex chips for standard functions Single chip that performs very complex computations Multiplexer/Decoder/Encoder: Standard routing elements for interconnections FPGAs: Programmable for arbitrary functions 173 Design Example: Basic Telephone System Put together a simple telephone system D/A A/D Ear Mouth Bell Start E M B S
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174 Basic Telephone System (cont.) Multiple subscribers, one operator. Operator controls all connections E M B S E M B S E M B S E M B S E M B S Operator 175 Standard Circuit Elements Develop implementations of important “Building Blocks” Used in Networks, Computers, Stereos, etc. Multiplexer: Combine N sources onto 1 wire Encoder: Determine which input is active Decoder: Convert binary to one-of-N wires
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