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Portions from Application-Specific Integrated Circuits Copyright © 1997 by Addison Wesley Longman, Inc.

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SIMULATION

Engineers used to prototype systems to check their designs, often using a breadboard with connector holes, allowing them to plug in ICs and wires. Breadboarding was feasible when it was possible to construct systems from a few off-the-shelf TTL parts. It is impractical for prototyping an ASIC. Instead most ASIC design engineers turn to simulation as the modern equivalent of breadboarding.