CD74HC243E datasheet

by Texas Instruments

CD74HC243E Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the CD74HC243E?
  The CD74HC243E can operate at frequencies up to 40 MHz.
• How do I ensure that the CD74HC243E is properly powered?
  The CD74HC243E requires a power supply voltage (VCC) of 2.0 V to 6.0 V, and it is recommended to decouple the power supply with a 0.1 μF capacitor.
• What is the propagation delay time for the CD74HC243E?
  The propagation delay time for the CD74HC243E is typically around 10 ns, but it can vary depending on the operating conditions and load capacitance.
• Can I use the CD74HC243E in a 5V system?
  Yes, the CD74HC243E is compatible with 5V systems, but it is recommended to use a voltage regulator to ensure a stable 5V supply.
• How do I handle the output enable (OE) pin?
  The output enable (OE) pin should be connected to a logic low (GND) to enable the outputs, and to a logic high (VCC) to disable the outputs.