How to calculate the maximum data rate or frequency of a bus driver
The manufacture states a cryptic Tpd = 15ns (Cl=50pf, Vdd=3.3V) as usable test values, but in addition the test is with a square wave of ~50 % duty cycle at 60 MHz at \$25 Deg^oC\$. Maximum frequency also depends on if the part is commercial, industrial or military grade, as they guarantee operation over a specific range of temperatures.

Be sure to read ALL of the datasheet as it often includes drift from maximum frequency based on ambient temperature. Look at the charts in the datasheet. If it MUST work at 60 MHz then look for all the reasons why it may not. Usually \$F_{max}\$ is obtained under ideal (but possible) conditions.