CD74HC688 - 8-Bit Identity/Magnitude Comparators (P=Q) with Enable

Updated : 2020-01-09 14:44:01
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.

Products containing the "CD74HC688" keyword are: CD74HC688E , CD74HC688E , CD74HC688EE4 , CD74HC688EX , CD74HC688M , CD74HC688M , CD74HC688M96 , CD74HC688M96 , CD74HC688M96E4 , CD74HC688M96E4 , CD74HC688M96G4 , CD74HC688ME4 , CD74HC688MG4 , CD74HC688NSR , CD74HC688NSR , CD74HC688NSRE4 , CD74HC688NSRG4 , CD74HC688PW , CD74HC688PWR , CD74HC688PWR
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

Data sheet acquired from Harris Semiconductor