SN74AHC244DGVR datasheet by Texas Instruments

SN74AHC244DGVR Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the SN74AHC244DGVR?
  The maximum operating frequency of the SN74AHC244DGVR is 100 MHz, but it can vary depending on the output load and the system design.
• How do I ensure signal integrity when using the SN74AHC244DGVR in a high-speed application?
  To ensure signal integrity, use a low-impedance output termination, keep the output traces short and well-matched, and use a ground plane to reduce noise and crosstalk.
• Can I use the SN74AHC244DGVR in a 3.3V system, and if so, what are the power supply requirements?
  Yes, the SN74AHC244DGVR can be used in a 3.3V system. The recommended power supply voltage is 3.3V ± 0.3V, and the device can operate with a supply current of up to 20 mA.
• How do I handle the output enable (OE) pin in a system where multiple devices are connected in parallel?
  When multiple devices are connected in parallel, the output enable (OE) pin should be connected to a common signal, and the OE signal should be asserted (low) to enable the outputs of all devices simultaneously.
• What is the recommended layout and routing for the SN74AHC244DGVR to minimize electromagnetic interference (EMI)?
  To minimize EMI, use a compact layout, keep the output traces away from the input traces, and use a ground plane to shield the device. Also, avoid running sensitive signals near the device's output pins.