CD74HC194M96 datasheet by Texas Instruments

CD74HC194M96 Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the CD74HC194M96 can handle?
  The CD74HC194M96 can handle clock frequencies up to 25 MHz.
• How do I ensure that the shift register outputs are in a known state during power-up?
  To ensure that the shift register outputs are in a known state during power-up, you can use the Master Reset (MR) input to reset the shift register. You can also use the asynchronous reset input (SRCLR) to clear the shift register.
• Can I use the CD74HC194M96 as a serial-to-parallel converter?
  Yes, the CD74HC194M96 can be used as a serial-to-parallel converter. You can serially load data into the shift register using the Serial Data Input (DS) and then parallel-load the data onto the output pins using the Shift/Load (SH/LD) input.
• How do I handle the asynchronous reset input (SRCLR) during normal operation?
  During normal operation, the asynchronous reset input (SRCLR) should be tied high to prevent accidental clearing of the shift register. You can also use a pull-up resistor to ensure that the input is high when not actively being driven low.
• What is the maximum output current that the CD74HC194M96 can sink or source?
  The CD74HC194M96 can sink or source up to 25 mA of current per output pin.