SN74LS74ADE4 datasheet by Texas Instruments

SN74LS74ADE4 Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the SN74LS74ADE4?
  The recommended operating voltage range for the SN74LS74ADE4 is 4.75V to 5.25V, with a typical voltage of 5V.
• How do I handle the power-up and power-down sequences for the SN74LS74ADE4?
  It is recommended to power up the VCC pin before the input signals, and power down the VCC pin after the input signals. This ensures that the device is properly initialized and avoids any potential latch-up conditions.
• What is the maximum clock frequency that the SN74LS74ADE4 can handle?
  The maximum clock frequency that the SN74LS74ADE4 can handle is 25 MHz, although this can vary depending on the specific application and operating conditions.
• How do I ensure that the SN74LS74ADE4 is properly terminated to prevent signal reflections?
  It is recommended to use a termination resistor (e.g. 1 kΩ) at the output of the device to prevent signal reflections and ensure signal integrity.
• Can I use the SN74LS74ADE4 in a 3.3V system?
  No, the SN74LS74ADE4 is not recommended for use in 3.3V systems, as it is designed to operate at 5V. Using it at 3.3V may result in reduced performance, increased power consumption, or even damage to the device.