CD74HCT245EE4 datasheet by Texas Instruments

CD74HCT245EE4 Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the CD74HCT245EE4?
  The maximum operating frequency of the CD74HCT245EE4 is 50 MHz, but it can vary depending on the system design and capacitive loading.
• How do I handle the output enable (OE) pin in my design?
  The output enable (OE) pin should be connected to a logic signal that is asserted low to enable the outputs and high to disable the outputs. If left unconnected, the OE pin will default to a logic high, disabling the outputs.
• What is the recommended power-on sequence for the CD74HCT245EE4?
  The recommended power-on sequence is to apply power to the VCC pin before applying any input signals. This ensures that the device is properly initialized and minimizes the risk of latch-up or damage.
• Can I use the CD74HCT245EE4 in a 5V system?
  Yes, the CD74HCT245EE4 is compatible with 5V systems, but it is recommended to use a voltage regulator or level shifter to ensure that the input signals are within the recommended operating range of 2V to 5.5V.
• How do I handle the thermal dissipation of the CD74HCT245EE4?
  The CD74HCT245EE4 has a maximum power dissipation of 500 mW. To handle thermal dissipation, ensure that the device is mounted on a suitable heat sink or PCB with adequate thermal conductivity, and follow proper thermal design guidelines.