Description
The sun (Σ) outputs are provided for each bit and the resultant carry (C4) is obtained from the fourth bit.
Features
- full internal look ahead across all four bits. This provides the system designer with partial look-ahead performance at the economy and reduced package count of a ripple-carry implementation. The adder logic, including the carry, is implemented in its true for meaning that the end-around carry can be accomplished without the need for logic or level inversion. Features.
- High Speed Operation: tpd = 19 ns typ (CL = 50 pF).
- High Output Current: Fanout of 10 LSTTL Loads.