The maximum frequency of operation for the CD74HCT259M is 100 MHz.
Yes, the CD74HCT259M can operate with a 5V power supply, but it is recommended to use a 3.3V or lower power supply for optimal performance.
To ensure proper termination, connect a 50-ohm resistor between the output of the CD74HCT259M and the load, and a 50-ohm resistor between the output and ground.
The maximum output current of the CD74HCT259M is 24 mA per output.
The CD74HCT259M is rated for operation from -40°C to 85°C. However, it is recommended to derate the device for operation above 70°C to ensure reliability.