M74HC4520B1R datasheet by STMicroelectronics

M74HC4520B1R Frequently Asked Questions (FAQs)

• What is the recommended operating voltage range for M74HC4520B1R?
  The recommended operating voltage range for M74HC4520B1R is 2V to 6V, with a typical voltage of 5V.
• How do I handle the output enable (OE) pin in my design?
  The output enable (OE) pin is active low, meaning that the outputs are enabled when OE is low and disabled when OE is high. You should connect OE to a logic low signal to enable the outputs.
• What is the maximum clock frequency that the M74HC4520B1R can handle?
  The maximum clock frequency that the M74HC4520B1R can handle is 25 MHz, but this can vary depending on the operating voltage and load conditions.
• How do I ensure that the M74HC4520B1R is properly powered and decoupled?
  You should provide a stable power supply to the M74HC4520B1R, with a decoupling capacitor (e.g. 100nF) connected between the VCC and GND pins to filter out noise and ensure reliable operation.
• Can I use the M74HC4520B1R in a 3.3V system?
  Yes, the M74HC4520B1R can operate at 3.3V, but you should ensure that the input signals are compatible with the 3.3V logic level, and that the output loads are compatible with the reduced output voltage.