CD74AC20E datasheet by Texas Instruments

CD74AC20E Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for CD74AC20E?
  The recommended operating voltage range for CD74AC20E is 2V to 6V, although it can operate up to 7V with reduced performance.
• How do I handle the output enable (OE) pin in CD74AC20E?
  The output enable (OE) pin should be connected to GND to enable the outputs, and to VCC to disable the outputs. Leaving OE unconnected or floating can cause unpredictable behavior.
• What is the maximum frequency of operation for CD74AC20E?
  The maximum frequency of operation for CD74AC20E is typically around 100 MHz, but this can vary depending on the specific application, operating voltage, and load conditions.
• Can I use CD74AC20E in a 3.3V system?
  Yes, CD74AC20E can be used in a 3.3V system, but the output voltage levels may not be fully compatible with 3.3V logic. It's recommended to use a level translator or voltage regulator to ensure proper operation.
• How do I ensure proper power sequencing when using CD74AC20E?
  To ensure proper power sequencing, it's recommended to power up the VCC pin before applying any input signals, and to power down the VCC pin after removing all input signals.