The maximum frequency of operation for the SN74HC20N is 25 MHz.
Yes, the SN74HC20N is compatible with 5V systems, but it's recommended to use a voltage regulator to ensure a stable 5V supply.
The output enable (OE) pin is active-low, meaning it should be connected to GND to enable the outputs. Leaving it unconnected or connecting it to VCC will disable the outputs.
The propagation delay of the SN74HC20N is typically around 10-15 ns, but this can vary depending on the operating conditions and load capacitance.
Yes, the SN74HC20N is compatible with 3.3V systems, but the output voltage will be limited to around 3.0V. Ensure that the receiving device can tolerate this reduced voltage.