74ACT244MTR datasheet by STMicroelectronics

74ACT244MTR Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the 74ACT244MTR?
  The maximum operating frequency of the 74ACT244MTR is typically around 100 MHz, but it can vary depending on the specific application and operating conditions.
• How do I handle the power-up and power-down sequencing of the 74ACT244MTR?
  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 or damage.
• What is the recommended termination scheme for the 74ACT244MTR?
  The recommended termination scheme for the 74ACT244MTR is to use a series resistor and a parallel capacitor (RC termination) at the output pins to minimize reflections and ensure signal integrity.
• Can I use the 74ACT244MTR in a 3.3V system?
  Yes, the 74ACT244MTR is compatible with 3.3V systems, but it requires a 5V tolerant input to ensure proper operation. Additionally, the output voltage will be limited to the VCC voltage, which is 3.3V in this case.
• How do I handle the thermal management of the 74ACT244MTR?
  The 74ACT244MTR has a maximum junction temperature of 150°C. To ensure proper thermal management, it is recommended to provide adequate heat sinking, use a thermal pad or heat spreader, and keep the device away from high-temperature sources.