Implementing logic: Custom versus micro versus macro

Abstract

Logic design has come a long way in the last decade; where one once laboriously designed individual circuits and painfully assembled discrete components, a designer now has a wide variety of alternative approachesavailablefor implementing a logic function, with cost determined by such factors as production run size, design cost, turn-around time, and engineering change and redesign ease, rather than the historical factors of component count and chip area.