SN74LS09N datasheet by Texas Instruments

SN74LS09N Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the SN74LS09N?
  The maximum frequency of operation for the SN74LS09N is typically around 35 MHz, but this can vary depending on the specific application and operating conditions.
• How do I ensure that the SN74LS09N is properly powered?
  To ensure proper operation, the SN74LS09N should be powered with a stable 5V supply, and decoupling capacitors should be used to filter out noise and voltage spikes.
• What is the maximum current that the SN74LS09N can sink or source?
  The SN74LS09N can sink or source up to 16 mA of current per output, but this should be limited to 8 mA per output to ensure reliable operation.
• How do I handle unused inputs on the SN74LS09N?
  Unused inputs on the SN74LS09N should be tied to a logic high or low level, depending on the specific application, to prevent floating inputs and ensure proper operation.
• Is the SN74LS09N compatible with 3.3V logic?
  The SN74LS09N is a 5V device, but it can be used with 3.3V logic with proper level shifting or voltage translation, taking into account the device's input and output voltage levels.