Q. What are the major differences between the 5400 and 7400 series of ICs?

• (A) the 5400 series are military grade and require tighter supply voltages and temperatures.
• (B) the 5400 series are military grade and allow for a wider range of supply voltages and temperature s.
• (C) the 7400 series are an improvement over the original 5400s.
• (D) the 7400 series was originally developed by texas instrumen ts. the 5400 series was brought out by national semicondu ctors after ti\s patents expired, as a second supply source.