The SN74HCT02D is a digital logic gate and does not have a clock input, so it does not have a maximum clock frequency.
Yes, the SN74HCT02D is designed to operate with a power supply voltage of 4.5V to 5.5V, making it compatible with 5V systems.
The SN74HCT02D can sink or source up to 6mA of current per output, making it suitable for driving small loads.
Yes, the SN74HCT02D is designed to be compatible with TTL (Transistor-Transistor Logic) logic levels, making it easy to interface with other TTL devices.
The propagation delay of the SN74HCT02D is typically around 10ns, which is relatively fast for a digital logic gate.