SN74BCT125AD datasheet by Texas Instruments

SN74BCT125AD Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the SN74BCT125AD?
  The maximum operating frequency of the SN74BCT125AD is 100 MHz, but it can vary depending on the specific application and operating conditions.
• How do I ensure signal integrity when using the SN74BCT125AD?
  To ensure signal integrity, use proper PCB layout techniques, such as minimizing trace lengths, using impedance-matched transmission lines, and adding termination resistors as needed. Additionally, follow the recommended operating conditions and signal levels specified in the datasheet.
• Can I use the SN74BCT125AD in a 3.3V system?
  Yes, the SN74BCT125AD is compatible with 3.3V systems, but ensure that the input signals are within the recommended voltage range (VCC - 0.5V to VCC + 0.5V) to maintain proper operation.
• How do I handle power sequencing when using the SN74BCT125AD?
  To avoid latch-up or other issues, ensure that the power supply voltage (VCC) is applied before the input signals, and that the input signals are stable before the clock signal is applied.
• What is the recommended termination scheme for the SN74BCT125AD?
  The recommended termination scheme for the SN74BCT125AD is a series terminator (Rs) of 22-33 ohms, followed by a parallel terminator (Rt) of 50-75 ohms, to match the impedance of the transmission line and minimize reflections.