74F182 – Carry Lookahead Generator

The 74F182 is a high-speed carry lookahead generator. It is generally used with the 74F181 or 74F381 4-bit arithmetic logic units to provide high-speed lookahead over word lengths of more than four bits.
â–  Provides lookahead carries across a group of four ALUs
â–  Multi-level lookahead high-speed arithmetic operation
over long word lengths