SN74LS283N

The Texas Instruments SN74LS283N is a specialty logic integrated circuit that functions as a 4-bit binary full adder with fast carry capabilities. This device is designed to perform the addition of two 4-bit binary words, providing sum outputs for each bit and a resultant carry-out from the fourth bit.

Key features include full internal look-ahead across all four bits, which generates the carry term typically in ten nanoseconds. This provides system designers with partial look-ahead performance while maintaining the economy and reduced package count of a ripple-carry implementation. The adder logic is implemented in its true form, allowing for end-around carry without the need for logic or level inversion.

This IC operates within a supply voltage range of 4.75V to 5.25V and has an operating temperature range of 0°C to 70°C. It is packaged in a 16-pin PDIP (Plastic Dual In-line Package) and is designed for through-hole mounting, simplifying PCB layout with supply voltage and ground on corner pins.

The SN74LS283N is electrically and functionally identical to the '83A and 'LS83A, with only a change in terminal arrangement. It is suitable for various digital logic applications requiring binary addition.