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CD4089BMS - CMOS Binary Rate Multiplier

Description

In the Multiply mode the fraction programmed into the first rate multiplier is multiplied by the fraction programmed into the second multiplier.

Numerical Control Instrumentation

Features

  • High Voltage Type (20V Rating).
  • Cascadable in Multiples of 4 Bits.
  • Set to “15” Input and “15” Detect Output.
  • 100% Tested for Quiescent Current at 20V.
  • 5V, 10V and 15V Parametric Ratings.
  • Standardized Symmetrical Output Characteristics.
  • Maximum Input Current of 1µA at 18V Over Full Package Temperature Range; 100nA at 18V and +25oC.
  • Noise Margin (Over Full Package/Temperature Range) - 1V at VDD = 5V - 2V at VDD = 10V - 2.5V a.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.
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