SN74LS08D datasheet by Texas Instruments

SN74LS08D Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the SN74LS08D?
  The maximum frequency of operation for the SN74LS08D is typically around 30-40 MHz, but this can vary depending on the specific application and operating conditions.
• How do I ensure that the SN74LS08D is properly powered and decoupled?
  To ensure proper operation, the SN74LS08D should be powered with a stable 5V supply, and decoupling capacitors (e.g. 0.1uF) should be placed as close as possible to the device to filter out noise and reduce electromagnetic interference (EMI).
• What is the maximum current that the SN74LS08D can sink or source?
  The SN74LS08D can sink or source up to 16mA of current per output, but this should be limited to 8mA per output to ensure reliable operation.
• How do I handle unused inputs on the SN74LS08D?
  Unused inputs on the SN74LS08D should be tied to a logic level (either VCC or GND) to prevent floating inputs and ensure proper operation.
• Is the SN74LS08D compatible with 3.3V logic?
  The SN74LS08D is a 5V device, but it can be used with 3.3V logic with proper level shifting or voltage translation. However, this may require additional circuitry and careful design consideration.