74HC257D,652 datasheet by NXP Semiconductors

74HC257D,652 Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the 74HC257D,652?
  The maximum frequency of operation for the 74HC257D,652 is typically around 100 MHz, but this can vary depending on the specific application and operating conditions.
• How do I ensure that the 74HC257D,652 is properly powered and decoupled?
  To ensure proper operation, the 74HC257D,652 should be powered from a stable, low-noise power supply, and decoupling capacitors (e.g. 100 nF) should be placed close to the device to filter out noise and reduce electromagnetic interference (EMI).
• What is the maximum current that can be sourced or sunk by the 74HC257D,652 outputs?
  The maximum current that can be sourced or sunk by the 74HC257D,652 outputs is typically around 25 mA, but this can vary depending on the specific application and operating conditions.
• How do I handle unused inputs on the 74HC257D,652?
  Unused inputs on the 74HC257D,652 should be tied to a valid logic level (either VCC or GND) to prevent floating inputs and ensure proper operation.
• Is the 74HC257D,652 suitable for use in high-temperature or high-reliability applications?
  The 74HC257D,652 is a standard commercial-grade device, but NXP Semiconductors offers industrial-grade and automotive-grade versions of the device (e.g. 74HCT257D,652 and 74AHC257D,652) that are suitable for use in high-temperature or high-reliability applications.