The maximum operating frequency of the SN74LVC245APWRE4 is 100 MHz.
Yes, the SN74LVC245APWRE4 is designed to operate from 1.65V to 3.6V, making it suitable for 3.3V systems.
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 SN74LVC245APWRE4 is approximately 2.5 ns at 25°C and 3.3V supply voltage.
While the SN74LVC245APWRE4 can tolerate 5V inputs, it is not recommended to use it in a 5V system as it may not meet the required voltage tolerance. It's recommended to use a level shifter or voltage regulator to ensure compatibility.