SN74HC175D datasheet by Texas Instruments

SN74HC175D Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the SN74HC175D can handle?
  The maximum clock frequency of the SN74HC175D is typically 40 MHz, but it can vary depending on the operating conditions and the quality of the clock signal.
• How do I ensure that the SN74HC175D is properly reset during power-up?
  To ensure proper reset during power-up, connect the MR (Master Reset) input to a power-on reset circuit or a pull-up resistor to VCC. This ensures that the flip-flops are reset to a known state during power-up.
• What is the propagation delay time for the SN74HC175D?
  The propagation delay time (tPD) for the SN74HC175D is typically around 15-20 ns, but it can vary depending on the operating conditions and the load capacitance.
• Can I use the SN74HC175D in a 5V system?
  Yes, the SN74HC175D is designed to operate from 2V to 6V, making it suitable for use in 5V systems. However, ensure that the input signals are within the recommended voltage range to prevent damage to the device.
• How do I handle the asynchronous reset input (MR) in my design?
  The asynchronous reset input (MR) should be connected to a pull-up resistor to VCC and a capacitor to ground to ensure proper reset operation. The capacitor helps to filter out noise and glitches on the reset signal.