74HC164N datasheet by NXP Semiconductors

74HC164N Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the 74HC164N can handle?
  The maximum clock frequency of the 74HC164N is 25 MHz, but it can vary depending on the operating voltage and temperature. It's recommended to check the timing characteristics in the datasheet for specific frequency limits.
• How do I ensure that the 74HC164N is properly powered and decoupled?
  To ensure proper power supply and decoupling, connect the VCC pin to a stable 2.0-6.0 V power supply, and decouple the power supply lines with 0.1 μF ceramic capacitors as close to the device as possible. Additionally, use a 10 μF electrolytic capacitor for bulk decoupling.
• What is the recommended input rise and fall time for the 74HC164N?
  The recommended input rise and fall time for the 74HC164N is 3 ns/V, which means that the input signal should rise or fall by 3 ns for every 1 V of input voltage change.
• Can I use the 74HC164N in a 5V system?
  Yes, the 74HC164N can be used in a 5V system, but it's essential to ensure that the input signals are within the recommended voltage range (VCC - 1.5V to VCC + 0.5V) to prevent damage to the device.
• How do I handle the asynchronous reset (RST) input?
  The asynchronous reset (RST) input should be tied to VCC through a pull-up resistor (e.g., 1 kΩ) to ensure that the device is properly reset. When the RST input is low, the device is reset, and all outputs are set to low.