CD74HC595MT datasheet by Texas Instruments

CD74HC595MT Frequently Asked Questions (FAQs)

• What is the maximum clock frequency for the CD74HC595MT?
  The maximum clock frequency for the CD74HC595MT is 25 MHz.
• Can I use the CD74HC595MT with a 5V power supply?
  Yes, the CD74HC595MT can operate with a 5V power supply, but it's recommended to use a 3.3V or lower supply voltage to ensure compatibility with most modern microcontrollers.
• How do I reset the shift register?
  You can reset the shift register by pulling the MR (Master Reset) pin low. This will clear the shift register and set all outputs to low.
• What is the purpose of the OE (Output Enable) pin?
  The OE pin is used to enable or disable the output stage of the shift register. When OE is low, the outputs are enabled, and when OE is high, the outputs are high-impedance (tri-stated).
• Can I use the CD74HC595MT to drive LEDs directly?
  Yes, the CD74HC595MT can drive LEDs directly, but you should ensure that the total current drawn from the outputs does not exceed the maximum current rating of the device (35mA per output).