CD74HCT688E Analog comparator, 8-bit, 4.5 ... 5.5 V, DIL-20

8-Bit Identity/Magnitude Comparators (P=Q) with Enable

Description The ’HC688 and ’HCT688 are 8-bit magnitude comparators designed for use in computer and logic applications that require the comparison of two 8-bit binary words. When the compared words are equal the output (Y) is low and can be used as the enabling input for the next device in a cascaded application.

Features: - Cascadable - Fanout (Over Temperature Range) - Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads - Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads - Wide Operating Temperature Range . . . -55°C to 125°C - Balanced Propagation Delay and Transition Times - Significant Power Reduction Compared to LSTTL Logic ICs - HC Types - 2V to 6V Operation - High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V - HCT Types - 4.5V to 5.5V Operation - Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min) - CMOS Input Compatibility, Il 1µA at VOL, VOH