SN74LS85D datasheet by Texas Instruments

SN74LS85D Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the SN74LS85D can handle?
  The maximum clock frequency of the SN74LS85D is 10 MHz, but it can vary depending on the specific application and operating conditions.
• How do I ensure that the SN74LS85D is properly powered and decoupled?
  To ensure proper power and decoupling, use a 5V power supply, add a 0.1uF decoupling capacitor between VCC and GND, and use a 10uF capacitor between VCC and GND for additional filtering.
• What is the maximum input voltage that the SN74LS85D can tolerate?
  The maximum input voltage that the SN74LS85D can tolerate is 5.5V, exceeding which can cause damage to the device.
• How do I handle the asynchronous reset input (CLR) of the SN74LS85D?
  The CLR input should be tied to VCC through a 1kΩ resistor and a 0.01uF capacitor to ensure proper reset operation.
• What is the propagation delay of the SN74LS85D?
  The propagation delay of the SN74LS85D is typically around 10-15 ns, but it can vary depending on the specific application and operating conditions.