SN74HC74NSR datasheet by Texas Instruments

SN74HC74NSR Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the SN74HC74NSR can handle?
  The maximum clock frequency of the SN74HC74NSR is 25 MHz.
• How do I ensure that the flip-flops are properly initialized on 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 define the initial state.
• What is the recommended operating voltage range for the SN74HC74NSR?
  The recommended operating voltage range for the SN74HC74NSR is 2 V to 6 V, with a typical operating voltage of 5 V.
• How do I handle asynchronous inputs to the flip-flops?
  To handle asynchronous inputs, use synchronous inputs whenever possible, and use the asynchronous set (S) and reset (R) inputs only when necessary. Ensure that asynchronous inputs are synchronized with the clock signal to prevent metastability.
• What is the maximum current that the SN74HC74NSR can sink or source?
  The maximum current that the SN74HC74NSR can sink or source is 25 mA per output pin.