SN74LS73AD datasheet by Texas Instruments

SN74LS73AD Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the SN74LS73AD?
  The recommended operating voltage range for the SN74LS73AD is 4.75V to 5.25V, although it can operate from 4.5V to 5.5V with reduced performance.
• How do I handle the asynchronous reset input (R) in the SN74LS73AD?
  The asynchronous reset input (R) should be tied to VCC through a pull-up resistor (e.g., 1 kΩ) if not used, to prevent unwanted resets. When used, ensure the reset signal is active-low and meets the input voltage and timing requirements.
• What is the maximum clock frequency supported by the SN74LS73AD?
  The maximum clock frequency supported by the SN74LS73AD is 25 MHz, although this may vary depending on the specific application and operating conditions.
• Can I use the SN74LS73AD in a 3.3V system?
  No, the SN74LS73AD is not designed for 3.3V operation. It is a 5V device and may not function correctly or may be damaged if operated at 3.3V.
• How do I ensure proper power sequencing when using the SN74LS73AD?
  Ensure that the power supply (VCC) is stable and within the recommended operating range before applying clock or input signals to the device. Also, ensure that the power-down sequence is followed to prevent damage or incorrect operation.