SN74LS244DWG4 datasheet by Texas Instruments

SN74LS244DWG4 Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the SN74LS244DWG4?
  The maximum operating frequency of the SN74LS244DWG4 is 35 MHz, but it can vary depending on the load capacitance and the output current.
• How do I ensure signal integrity when using the SN74LS244DWG4 in a high-speed application?
  To ensure signal integrity, use a low-impedance PCB design, keep the signal traces short, and use termination resistors to match the impedance of the transmission line. Additionally, consider using a buffer or repeater to regenerate the signal if it needs to travel a long distance.
• What is the recommended power-on sequence for the SN74LS244DWG4?
  The recommended power-on sequence is to apply VCC first, followed by the input signals. This ensures that the device is properly initialized and minimizes the risk of latch-up or other unexpected behavior.
• Can I use the SN74LS244DWG4 in a 3.3V system?
  Yes, the SN74LS244DWG4 can be used in a 3.3V system, but the output voltage will be limited to 3.3V. Additionally, the device's input voltage threshold will be lower than the typical 2V for a 5V system, so ensure that the input signals meet the recommended voltage levels.
• How do I handle thermal issues with the SN74LS244DWG4 in a high-power application?
  To handle thermal issues, ensure good thermal conduction between the device and the PCB, use a heat sink if necessary, and keep the device away from other heat sources. Additionally, consider using a device with a higher power rating or a different package type that is more suitable for high-power applications.