M74HC74B1R datasheet by STMicroelectronics

M74HC74B1R Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the M74HC74B1R?
  The recommended operating voltage range for the M74HC74B1R is 2V to 6V.
• How do I ensure that the flip-flop is properly reset during power-up?
  To ensure proper reset during power-up, connect the reset pin (MR) to VCC through a pull-up resistor (e.g., 1kΩ) and add a capacitor (e.g., 10nF) from the reset pin to GND to filter out noise.
• What is the maximum clock frequency that the M74HC74B1R can handle?
  The maximum clock frequency that the M74HC74B1R can handle is 25MHz at 6V and 10MHz at 2V.
• How do I minimize power consumption in the M74HC74B1R?
  To minimize power consumption, use a lower supply voltage (e.g., 3.3V) and reduce the clock frequency to the minimum required for your application.
• Can I use the M74HC74B1R in a 3.3V system?
  Yes, the M74HC74B1R is compatible with 3.3V systems, but ensure that the input signals are within the recommended voltage range (0.8V to 3.3V) to maintain proper operation.