The design of a high speed Sorting Processor ASIC is presented. It was desi
gned in BiCMOS 0.8 mu m technology and its aim is to reorder and provide th
e four highest words among eight input words, in decreasing order. This chi
p is the main component of the sorting tree of the Trigger Muon System of t
he CMS experiment. (C) 1999 Elsevier Science B.V. Ail rights reserved.