Quaternary multiplier circuit

Abstract

A new quaternary multiplier circuit is presented. This current-mode CMOS circuit multiplies the values of two quaternary-valued input currents and adds a ternary-valued carry input current to generate the two-quaternary-digit output: a most-significant-digit ternary-valued CARRY output current and a quaternary-valued PRODUCT output current. This multiplier circuit uses 49 MOS transistors and generates its outputs in about 10 microseconds, worst case.<>