SN54LS155AJ datasheet by Texas Instruments

SN54LS155AJ Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the SN54LS155AJ?
  The maximum operating frequency of the SN54LS155AJ is 35 MHz, but it can vary depending on the specific application and operating conditions.
• How do I ensure reliable operation of the SN54LS155AJ in high-temperature environments?
  To ensure reliable operation in high-temperature environments, it is recommended to follow proper thermal management practices, such as providing adequate heat sinking and airflow, and ensuring that the device is operated within its specified temperature range (-55°C to 125°C).
• What is the recommended power-on sequence for the SN54LS155AJ?
  The recommended power-on sequence for the SN54LS155AJ is to apply power to the VCC pin before applying any input signals, and to ensure that all input signals are stable before applying the clock signal.
• How do I handle bus contention when using the SN54LS155AJ as a multiplexer?
  To handle bus contention when using the SN54LS155AJ as a multiplexer, it is recommended to use external resistors or buffers to isolate the output signals, and to ensure that the output signals are properly terminated to prevent reflections and oscillations.
• What is the maximum current that the SN54LS155AJ can sink or source?
  The maximum current that the SN54LS155AJ can sink or source is 24 mA, but it is recommended to limit the current to 16 mA or less to ensure reliable operation and to prevent overheating.