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CD4089BMS
December 1992
CMOS Binary Rate Multiplier
conjunction with an up/down counter and control logic used to perform arithmetic operations (adds, subtract, divide, raise to a power), solve algebraic and differential equations, generate natural logarithms and trigometric functions, A/D and D/A conversions, and frequency division. For words of more than 4 bits, CD4089BMS devices may be cascaded in two different modes: an Add mode and a Multiply mode (see Figures 3 and 4). In the Add mode some of the gaps left by the more significant unit at the count of 15 are filled in by the less significant units.