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A multiplexer-based digital passive linear counter (PLINCO)

TitleA multiplexer-based digital passive linear counter (PLINCO)
Publication TypeConference Paper
Year of Publication2009
AuthorsWeaver, S. T., B. P. Hershberg, P K. Hanumolu, and U. Moon
Conference Name16th IEEE International Conference on Electronics, Circuits and Systems - (ICECS 2009)
Pagination607 - 610
Date Published12/2009
Conference LocationYasmine Hammamet, Tunisia
ISBN Number978-1-4244-5090-9

A passive linear counter (PLINCO) is presented. By cascading many passive transmission-gate multiplexers, a circuit is created that takes any scrambled unary-weighted digital input and sorts it into a thermometer coded output. Another variation produces a "one-hot" coded output. The number of muxes, n, required for these circuits increases with O{n²}, so a folding technique is presented that reduces the order to O{n log(n)}.