CD54HC165F3A datasheet by Texas Instruments

CD54HC165F3A Frequently Asked Questions (FAQs)

• What is the maximum clock frequency for the CD54HC165F3A?
  The maximum clock frequency for the CD54HC165F3A is 25 MHz.
• Can I use the CD54HC165F3A in a 5V system?
  Yes, the CD54HC165F3A is compatible with 5V systems, but it's recommended to use a voltage regulator to ensure a stable 5V supply.
• 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 proper operation. A low-level signal on RST resets the shift register.
• What is the maximum input voltage for the serial data input (DS)?
  The maximum input voltage for the serial data input (DS) is VCC + 0.5V, but it's recommended to keep it within the VCC range for reliable operation.
• Can I use the CD54HC165F3A in a high-temperature environment?
  The CD54HC165F3A is rated for operation up to 125°C, but it's recommended to derate the device for reliable operation in high-temperature environments.