CD74HCT173E datasheet by Texas Instruments

CD74HCT173E Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the CD74HCT173E can handle?
  The CD74HCT173E can handle clock frequencies up to 30 MHz, but it's recommended to check the timing specifications in the datasheet for specific frequency ranges and operating conditions.
• How do I ensure that the CD74HCT173E is properly powered and decoupled?
  To ensure proper power and decoupling, use a 5V power supply, add a 0.1uF ceramic capacitor between VCC and GND, and consider adding a 10uF electrolytic capacitor for additional filtering. Also, make sure to follow the recommended PCB layout guidelines.
• Can I use the CD74HCT173E with a 3.3V power supply?
  No, the CD74HCT173E is designed to operate with a 5V power supply. Using a 3.3V power supply may not guarantee proper operation and may lead to unpredictable behavior or damage to the device.
• How do I handle the asynchronous clear (CLR) input?
  The CLR input is an asynchronous active-low input that resets the counter to zero. To use it, connect CLR to a logic low signal when you want to clear the counter, and ensure that the signal is synchronized with the clock signal to avoid metastability issues.
• What is the maximum output current that the CD74HCT173E can sink or source?
  The CD74HCT173E can sink or source up to 6mA of current per output pin, but it's recommended to check the output current specifications in the datasheet for specific operating conditions and to ensure that the output current does not exceed the maximum rating.