The SN74HC574N can handle clock frequencies up to 100 MHz.
To ensure that the outputs are in a known state during power-up, connect the OE (output enable) pin to GND or use an external pull-down resistor to force the outputs low during power-up.
The SN74HC574N can sink or source up to 25 mA of current per output pin.
The asynchronous clear (CLR) input should be tied to VCC through a pull-up resistor to prevent accidental clearing of the registers. A 1-kΩ to 10-kΩ resistor is recommended.
The recommended operating voltage range for the SN74HC574N is 2 V to 6 V, with a typical operating voltage of 5 V.