SN74HC245DBR datasheet by Texas Instruments

SN74HC245DBR Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the SN74HC245DBR?
  The maximum frequency of operation for the SN74HC245DBR is 50 MHz.
• Can I use the SN74HC245DBR in a 5V system?
  Yes, the SN74HC245DBR is compatible with 5V systems, but it's recommended to use a voltage regulator to ensure a stable 5V supply.
• How do I handle the enable pins (EN1 and EN2) in my design?
  The enable pins (EN1 and EN2) are active-low, meaning they need to be pulled low to enable the corresponding direction of data transfer. Connect them to GND or a logic low signal to enable the device.
• What is the maximum current that the SN74HC245DBR can sink or source?
  The SN74HC245DBR can sink or source up to 25 mA of current per output pin.
• Can I use the SN74HC245DBR in a 3.3V system?
  Yes, the SN74HC245DBR is compatible with 3.3V systems, but the output voltage will be limited to 3.3V. Ensure that the receiving device can handle the reduced voltage.