FIELD: electronics.
SUBSTANCE: invention relates to electronics and is intended for use in integrated circuits of counting and control devices on complementary field-effect transistors of the metal-oxide-semiconductor (CMOS) structure. The device contains units for comparing digits containing an inverter, element 2AND-NOT and element 2OR-NOT, blocks for combining the results of partial comparisons forming a tree-like chain and implementing functions 
, 
, and a signal generator for the sign of equality of numbers made on element 2OR-NOT.
EFFECT: increase in performance.
3 cl, 12 dwg, 1 tbl
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