74AC11138DR datasheet by Texas Instruments

74AC11138DR Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for the 74AC11138DR?
  The recommended operating voltage range for the 74AC11138DR is 2.0V to 3.6V, although it can operate as low as 1.8V with reduced performance.
• How do I handle the unused inputs on the 74AC11138DR?
  Unused inputs on the 74AC11138DR should be tied to a valid logic level (VCC or GND) to prevent floating inputs and ensure proper device operation.
• What is the maximum clock frequency supported by the 74AC11138DR?
  The maximum clock frequency supported by the 74AC11138DR is 100 MHz, although this may vary depending on the specific application and operating conditions.
• Can I use the 74AC11138DR in a 5V system?
  While the 74AC11138DR is designed for 3.3V systems, it can be used in a 5V system with proper voltage translation and level shifting, but this is not recommended as it may exceed the maximum rating and reduce the device's reliability.
• How do I ensure proper power sequencing when using the 74AC11138DR?
  To ensure proper power sequencing, the power supply voltage (VCC) should be applied before the clock signal, and the clock signal should be low during power-up to prevent unwanted device operation.