CD74HCT163E datasheet by Texas Instruments

CD74HCT163E Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with CD74HCT163E?
  The maximum clock frequency for CD74HCT163E is 30 MHz, but it can vary depending on the operating voltage and load capacitance. It's recommended to check the timing characteristics in the datasheet and perform simulations to ensure the desired frequency can be achieved.
• How do I ensure proper synchronization of the clock signal with the data inputs?
  To ensure proper synchronization, the clock signal should be applied to the clock input (CLK) before the data inputs (P0-P7) are valid. The clock signal should also be free of noise and glitches, and the clock rise and fall times should be within the specified limits.
• What is the recommended power-on reset sequence for CD74HCT163E?
  The recommended power-on reset sequence for CD74HCT163E is to apply power to the VCC pin, followed by a reset pulse to the CLR pin. The CLR pin should be held low for at least 10 ns to ensure a proper reset.
• Can I use CD74HCT163E in a 5V system?
  Yes, CD74HCT163E is compatible with 5V systems, but it's recommended to use a voltage regulator to ensure a stable 5V supply. The device can operate from 4.5V to 5.5V, but the recommended operating voltage is 5V ± 10%.
• How do I handle metastability issues with CD74HCT163E?
  Metastability issues can occur when the clock signal is not properly synchronized with the data inputs. To handle metastability issues, it's recommended to use a clock signal with a sufficient setup and hold time, and to use a synchronizer circuit or a metastable-resistant flip-flop to ensure data integrity.