M74HC174B1R datasheet by STMicroelectronics

M74HC174B1R Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for M74HC174B1R?
  The recommended operating voltage range for M74HC174B1R is 2V to 6V, with a typical voltage of 5V.
• How do I handle the unused inputs of the M74HC174B1R?
  Unused inputs of the M74HC174B1R should be tied to VCC or GND to prevent floating inputs and ensure proper device operation.
• What is the maximum clock frequency that the M74HC174B1R can handle?
  The maximum clock frequency that the M74HC174B1R can handle is 25 MHz, but this can vary depending on the operating voltage and load capacitance.
• Can I use the M74HC174B1R in a 3.3V system?
  Yes, the M74HC174B1R can be used in a 3.3V system, but the output voltage will be limited to 3.3V, and the device may not be able to drive heavy loads.
• How do I ensure that the M74HC174B1R is properly powered on and off?
  To ensure proper power-on and power-off, the VCC pin should be ramped up and down slowly (typically 10 ms or more) to prevent voltage spikes and ensure that the device is fully powered on or off before applying clock or input signals.