74HC4002D,652 datasheet by NXP Semiconductors

74HC4002D,652 Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the 74HC4002D,652?
  The maximum operating frequency of the 74HC4002D,652 is 40 MHz, but it can vary depending on the supply voltage and load conditions.
• How do I ensure that the 74HC4002D,652 is properly powered?
  To ensure proper power supply, connect VCC to a stable 2.0 V to 7.0 V power source, and GND to a solid ground plane. Decouple the power supply with a 0.1 μF capacitor to reduce noise and ensure reliable operation.
• What is the maximum input voltage that the 74HC4002D,652 can handle?
  The maximum input voltage that the 74HC4002D,652 can handle is 7.0 V, but it's recommended to keep the input voltage within the specified operating range of 2.0 V to 7.0 V to ensure reliable operation.
• Can I use the 74HC4002D,652 in a 3.3 V system?
  Yes, the 74HC4002D,652 can be used in a 3.3 V system, as it is specified to operate from 2.0 V to 7.0 V. However, ensure that the input signals are within the specified voltage range and that the output loads are compatible with the 3.3 V system.
• How do I handle unused inputs on the 74HC4002D,652?
  Unused inputs on the 74HC4002D,652 should be tied to VCC or GND through a 1 kΩ resistor to prevent floating inputs and ensure reliable operation.