The maximum clock frequency of the 74HC597DB,118 is 100 MHz.
Yes, the 74HC597DB,118 is compatible with 3.3V systems, but it can also operate at 5V. However, the output voltage will be limited to the supply voltage (VCC).
To ensure that the outputs are in a high-impedance state during power-up, you can connect the OE (Output Enable) pin to VCC through a pull-up resistor. This will keep the outputs in a high-impedance state until the OE pin is driven low.
Yes, the 74HC597DB,118 can be used as a level shifter. Since it can operate at both 3.3V and 5V, you can use it to shift signals from one voltage level to another.
The propagation delay of the 74HC597DB,118 is typically around 10-15 ns, but this can vary depending on the operating conditions and the specific application.