CD4024芯片工作电压为5V时,时钟输入频率最大为多少MHZ?

In the table below the RECOMMENDED OPERATING CONDITIONS in the CD4024 chip specification, when the chip is operating at 5V, the maximum input pulse frequency is 3.5MHZ; In the table below DYNAMIC ELECTRICAL CHARACTERISTICS, when operating at 5V, the maximum pulse input range is 3.5-7MHZ; What is the difference between these two, and which of the actual working maximum frequency should prevail?