DM74LS283 Datasheet, National Semiconductor

Y Y Y Y Y Full-carry look-ahead across the four bits Systems achieve partial look-ahead performance with the economy of ripple carry Typical add times Two 8-bit words .

These full adders perform the addition of two 4-bit binary numbers The sum (R) outputs are provided for each bit and the resultant carry (C4) is obtained from the fourth bit These adders feature full internal look ahead across all four bits This prov.