SN74HC164DR datasheet by Texas Instruments

SN74HC164DR Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that can be used with the SN74HC164DR?
  The maximum clock frequency for the SN74HC164DR is 25 MHz, but it can vary depending on the operating voltage and temperature. It's recommended to check the timing characteristics in the datasheet for specific frequency limits.
• How do I ensure that the shift register is properly initialized on power-up?
  To ensure proper initialization, it's recommended to tie the CLR (clear) input low during power-up to reset the shift register. You can also use an external reset circuit to ensure a clean power-up sequence.
• Can I use the SN74HC164DR as a serial-to-parallel converter?
  Yes, the SN74HC164DR can be used as a serial-to-parallel converter. Simply clock in the serial data and then latch the output using the parallel output enable (OE) input.
• What is the maximum capacitance that can be driven by the SN74HC164DR outputs?
  The maximum capacitance that can be driven by the SN74HC164DR outputs is approximately 100 pF. Exceeding this limit may affect the device's performance and reliability.
• How do I handle asynchronous clock and data inputs?
  To handle asynchronous clock and data inputs, it's recommended to use a synchronizer circuit or a flip-flop to synchronize the clock and data signals before applying them to the shift register.