SN74AHC74DR datasheet by Texas Instruments

SN74AHC74DR Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the SN74AHC74DR can handle?
  The maximum clock frequency of the SN74AHC74DR is 100 MHz.
• How do I ensure that the flip-flops are properly initialized during power-up?
  To ensure proper initialization, connect the preset (PRE) and clear (CLR) inputs to VCC or GND, and use a pull-up or pull-down resistor to prevent floating inputs.
• What is the recommended operating voltage range for the SN74AHC74DR?
  The recommended operating voltage range for the SN74AHC74DR is 2.0 V to 5.5 V.
• How do I minimize power consumption in my design using the SN74AHC74DR?
  To minimize power consumption, use a low-frequency clock, minimize switching activity, and consider using a lower supply voltage (e.g., 3.3 V instead of 5 V).
• Can I use the SN74AHC74DR in a 3.3 V system?
  Yes, the SN74AHC74DR is compatible with 3.3 V systems, but ensure that the input signals are within the recommended voltage range (0.8 V to 3.6 V).