Texas Instruments SN74AS885

these advanced schottky devices are capable of performing high-speed arithmetic or logic comparisons on two 8-bit binary or two s complement words. two fully decoded decisions about words p and q are externally available at two outputs. these devices are fully expandable to any number of bits without external gates. to compare words of longer lengths the p > qout and p < qout outputs of a stage handling less significant bits can be connected to the p > qin and p < qin inputs of the next stage handling more significant bits. the cascading paths are implemented with only a two-gate-level delay to reduce overall comparison times for long words. two alternative methods of cascading are shown in application information. view all in datasheet