SN74LV74ADBR datasheet by Texas Instruments

SN74LV74ADBR Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the SN74LV74ADBR?
  The maximum operating frequency of the SN74LV74ADBR is 100 MHz, but it can vary depending on the specific application and operating conditions.
• How do I handle the power-up and power-down sequencing of the SN74LV74ADBR?
  It is recommended to power up the VCC pin before the input signals, and power down the VCC pin after the input signals. This ensures that the device is properly initialized and avoids any potential latch-up or damage.
• What is the recommended termination scheme for the SN74LV74ADBR?
  The recommended termination scheme for the SN74LV74ADBR is to use a series resistor of 22-33 ohms at the output of each flip-flop, followed by a parallel capacitor of 10-22 pF to ground. This helps to reduce ringing and improve signal integrity.
• Can I use the SN74LV74ADBR in a 3.3V system?
  Yes, the SN74LV74ADBR is compatible with 3.3V systems, but it is recommended to use a voltage regulator to ensure a stable 3.3V supply. Additionally, the input and output voltage levels should be within the specified range to ensure proper operation.
• How do I handle the asynchronous reset (CLR) input of the SN74LV74ADBR?
  The asynchronous reset (CLR) input should be driven low to reset the flip-flops. It is recommended to use a pull-up resistor to ensure that the CLR input is not left floating, and to use a debouncing circuit to prevent multiple resets due to noise or glitches.