SN74HC273PWT datasheet by Texas Instruments

SN74HC273PWT Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the SN74HC273PWT can handle?
  The maximum clock frequency of the SN74HC273PWT is 25 MHz, but it can vary depending on the operating voltage and load capacitance. It's recommended to check the timing characteristics in the datasheet for specific frequency limits.
• How do I ensure that the flip-flops are properly initialized during power-up?
  To ensure proper initialization, connect the CLR (clear) input to a pull-up resistor and a capacitor to VCC. This will ensure that the flip-flops are cleared during power-up. Additionally, you can use a reset signal to clear the flip-flops during normal operation.
• What is the recommended operating voltage range for the SN74HC273PWT?
  The recommended operating voltage range for the SN74HC273PWT is 2 V to 6 V, with a typical operating voltage of 5 V. Operating the device outside of this range may affect its performance and reliability.
• Can I use the SN74HC273PWT in a 3.3 V system?
  Yes, the SN74HC273PWT can be used in a 3.3 V system, but you need to ensure that the input signals are compatible with the device's input voltage levels. Additionally, you may need to adjust the output voltage levels to match the 3.3 V system requirements.
• How do I handle the asynchronous clear (CLR) input?
  The CLR input is an asynchronous input, meaning it can be asserted at any time, regardless of the clock signal. To ensure proper operation, it's recommended to synchronize the CLR input with the clock signal using a flip-flop or a latch.