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CD40182BMS - CMOS Look-Ahead Carry Generator

General Description

The CD40182BMS is a high-speed look-ahead carry generator capable of anticipating a carry across four binary adders or groups of adders.

The CD40182BMS is cascadable to perform full look-ahead across n-bit adders.

Key Features

  • High Voltage Type (20V Rating).
  • Generates High-Speed Carry Across Four Adders or Adder Groups.
  • High-Speed Operation - tPHL, tPLH =100 ns (typ) at VDD = 10V.
  • Cascadable for Fast Carries Over N Bits.
  • Designed for Use with CD40181BMS ALU.
  • 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 T.

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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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CD40182BMS December 1992 CMOS Look-Ahead Carry Generator Description The CD40182BMS is a high-speed look-ahead carry generator capable of anticipating a carry across four binary adders or groups of adders. The CD40182BMS is cascadable to perform full look-ahead across n-bit adders. Carry, propagate-carry, and generate-carry functions are provided as enumerated in the terminal designation below. The CD40182BMS, when used in conjuction with the CD40181BMS arithmetic logic unit (ALU), provides full highspeed look-ahead carry capability for up to n-bit words. Each CD40182BMS generates the look-ahead (anticipated carry) across a group of four ALU’s. In addition, other CD40182BMS’s may be employed to anticipate the carry across sections of four look-ahead blocks up to n-bits.