DESCRIPTION
The 74F85 is a 4-bit magnitude comparator that can be expanded to almost any length. It compares two 4-bit binary, BCD, or other monotonic codes and presents the three possible magnitude results at the outputs.
   
FEATURES
• High-impedance NPN base inputs for reduced loading
    (20µA in High and Low states)
• Magnitude comparison of any binary words
• Serial or parallel expansion without extra gating