CD74HC193M datasheet by Texas Instruments

CD74HC193M Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with the CD74HC193M?
  The maximum clock frequency for the CD74HC193M is 3 MHz, but it can be operated at higher frequencies with proper signal integrity and layout considerations.
• How do I ensure that the CD74HC193M is properly powered and decoupled?
  To ensure proper power and decoupling, use a 0.1 μF ceramic capacitor between VCC and GND, and a 10 μF electrolytic capacitor between VCC and GND, with the capacitors placed as close to the device as possible.
• What is the recommended operating voltage range for the CD74HC193M?
  The recommended operating voltage range for the CD74HC193M is 2 V to 6 V, with a typical operating voltage of 5 V.
• How do I handle the asynchronous clear input (CLR) in my design?
  The CLR input should be synchronized with the clock signal to avoid metastability issues. It's recommended to use a flip-flop or a latch to synchronize the CLR signal with the clock signal.
• What is the maximum output current that the CD74HC193M can sink or source?
  The maximum output current that the CD74HC193M can sink or source is 25 mA, but it's recommended to limit the output current to 10 mA to ensure reliable operation.