M74HC273B1R datasheet by STMicroelectronics

M74HC273B1R Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the M74HC273B1R can handle?
  The M74HC273B1R can handle clock frequencies up to 100 MHz.
• How do I ensure that the flip-flops are properly initialized during power-up?
  To ensure proper initialization, connect the CLR (clear) input to VCC through a pull-up resistor, and connect the PRE (preset) input to GND through a pull-down resistor.
• What is the recommended operating voltage range for the M74HC273B1R?
  The recommended operating voltage range for the M74HC273B1R is 2V to 6V, with a typical voltage of 5V.
• Can I use the M74HC273B1R in a 3.3V system?
  Yes, the M74HC273B1R can operate at 3.3V, but the output voltage levels may not be compatible with 3.3V logic. Ensure that the output voltage levels are compatible with your system's requirements.
• How do I handle asynchronous inputs to the flip-flops?
  Asynchronous inputs should be synchronized with the clock signal using a synchronizer circuit or a flip-flop with a synchronous clear input to prevent metastability issues.