74LVC157AD,112 datasheet by NXP Semiconductors

74LVC157AD,112 Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the 74LVC157AD,112?
  The maximum operating frequency of the 74LVC157AD,112 is 100 MHz, but it can vary depending on the specific application and operating conditions.
• How do I ensure signal integrity when using the 74LVC157AD,112?
  To ensure signal integrity, use proper PCB design techniques such as impedance matching, signal routing, and decoupling. Additionally, consider using series termination resistors and/or parallel capacitors to reduce signal reflections and ringing.
• Can I use the 74LVC157AD,112 in a 3.3V system?
  Yes, the 74LVC157AD,112 is designed to operate from 1.65V to 3.6V, making it suitable for use in 3.3V systems. However, ensure that the input and output voltage levels are within the recommended operating range.
• How do I handle power-up and power-down sequencing with the 74LVC157AD,112?
  To avoid potential latch-up or damage, ensure that the power supply voltage (VCC) is applied before the input signals, and that the input signals are stable before the output enable (OE) is asserted. Similarly, when powering down, ensure that the OE is de-asserted before the input signals are removed, and the VCC is removed last.
• What is the maximum current that the 74LVC157AD,112 can sink or source?
  The 74LVC157AD,112 can sink or source up to 24mA per output pin, but the total current should not exceed the maximum package current rating of 100mA.