74HC11D datasheet by Philips Semiconductors

74HC11D Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the 74HC11D can handle?
  The 74HC11D can handle clock frequencies up to 10 MHz, but it's recommended to operate it at a maximum frequency of 5 MHz to ensure reliable operation.
• How do I ensure that the 74HC11D is properly powered?
  The 74HC11D requires a power supply voltage of 2.0 to 6.0 V, with a recommended operating voltage of 5.0 V. Ensure that the power supply is stable and decoupled with capacitors to prevent noise and voltage drops.
• What is the maximum current that the 74HC11D can sink or source?
  The 74HC11D can sink or source up to 25 mA of current per output pin, but it's recommended to limit the current to 10 mA per pin to ensure reliable operation.
• How do I handle the asynchronous reset input (MR) of the 74HC11D?
  The asynchronous reset input (MR) should be tied to VCC through a pull-up resistor (e.g., 1 kΩ) to ensure that the device is properly reset. A low-going pulse on the MR input will reset the device.
• Can I use the 74HC11D in a 3.3V system?
  Yes, the 74HC11D can operate at 3.3V, but it's essential to ensure that the input signals are compatible with the 3.3V logic levels. Additionally, the output voltage levels may not be compatible with 3.3V systems, so level shifting may be required.