74ALS244AD datasheet by Philips Semiconductors

74ALS244AD Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the 74ALS244AD?
  The maximum operating frequency of the 74ALS244AD is typically around 100 MHz, but it can vary depending on the specific application and load conditions.
• How do I ensure that the 74ALS244AD is properly terminated to prevent signal reflections?
  To prevent signal reflections, it's recommended to use a termination resistor (e.g., 50 ohms) at the far end of the transmission line, and to keep the transmission line as short as possible.
• Can I use the 74ALS244AD as a level translator between 5V and 3.3V logic levels?
  Yes, the 74ALS244AD can be used as a level translator between 5V and 3.3V logic levels, but you'll need to ensure that the input voltage is within the recommended range (VCC - 1.5V to VCC + 0.5V) and that the output is properly terminated.
• What is the maximum current that the 74ALS244AD can sink or source per output?
  The 74ALS244AD can sink or source up to 24 mA per output, but it's recommended to limit the current to 15 mA or less to ensure reliable operation.
• How do I handle the enable inputs (1G, 2G) when using the 74ALS244AD as a buffer?
  When using the 74ALS244AD as a buffer, you should tie the enable inputs (1G, 2G) to the appropriate logic level (VCC or GND) to enable or disable the buffer outputs.