The maximum frequency of operation for the CD74AC08E is typically around 100 MHz, but it can vary depending on the specific application and operating conditions.
To ensure proper power supply, connect VCC to a stable 5V power source, and GND to a reliable ground connection. Also, make sure to decouple the power supply with a 0.1uF capacitor to reduce noise and ensure stable operation.
The input voltage threshold for the CD74AC08E is typically around 2.5V for a logic high and 0.5V for a logic low, but it's recommended to use a voltage level close to the power supply voltage (VCC) for a logic high and close to GND for a logic low.
Yes, the CD74AC08E can be used in a 3.3V system, but the output voltage levels may not be as high as in a 5V system. The output high voltage (VOH) will be around 3.3V, and the output low voltage (VOL) will be around 0V.
The CD74AC08E is a low-power device, but it's still important to ensure good heat dissipation. Use a PCB with a good thermal design, and consider using a heat sink or a thermal pad if the device is expected to operate at high temperatures or high frequencies.