SN74HC273DBR datasheet by Texas Instruments

SN74HC273DBR Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the SN74HC273DBR can handle?
  The maximum clock frequency of the SN74HC273DBR is 35 MHz, but it can vary depending on the specific application and operating conditions.
• How do I ensure that the SN74HC273DBR is properly powered and decoupled?
  To ensure proper power and decoupling, use a 5V power supply, add a 0.1uF decoupling capacitor between VCC and GND, and use a 10uF bulk capacitor for each 10 devices on the board.
• What is the maximum current that the SN74HC273DBR can sink or source?
  The SN74HC273DBR can sink or source up to 25mA per output, but it's recommended to limit the current to 10mA per output to ensure reliable operation.
• How do I handle the asynchronous reset input (CLR) of the SN74HC273DBR?
  The CLR input should be tied to VCC through a 1kΩ resistor and a 0.01uF capacitor to ensure proper reset operation. A pull-up resistor is not necessary.
• Can I use the SN74HC273DBR in a 3.3V system?
  While the SN74HC273DBR is specified for 5V operation, it can be used in a 3.3V system with some limitations. However, the output voltage will be lower, and the device may not meet the specified timing parameters.