CD74HC4515E datasheet by Texas Instruments

CD74HC4515E Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the CD74HC4515E?
  The maximum frequency of operation for the CD74HC4515E is 40 MHz, but it can vary depending on the specific application and operating conditions.
• How do I ensure proper power sequencing when using the CD74HC4515E?
  To ensure proper power sequencing, the VCC pin should be powered up before the VEE pin, and the VEE pin should be powered down before the VCC pin. This helps prevent latch-up and damage to the device.
• What is the recommended operating voltage range for the CD74HC4515E?
  The recommended operating voltage range for the CD74HC4515E is 2V to 6V, with a typical operating voltage of 5V.
• How do I handle unused inputs on the CD74HC4515E?
  Unused inputs on the CD74HC4515E should be tied to a valid logic level (either VCC or GND) to prevent floating inputs and ensure proper device operation.
• What is the maximum output current of the CD74HC4515E?
  The maximum output current of the CD74HC4515E is 25 mA per output pin, but it's recommended to limit the output current to 10 mA or less to ensure reliable operation.