SN74HC257N datasheet by Texas Instruments

SN74HC257N Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the SN74HC257N can handle?
  The SN74HC257N can handle clock frequencies up to 40 MHz.
• How do I ensure that the SN74HC257N is properly powered?
  The SN74HC257N requires a single 2-V to 6-V power supply, and it's recommended to use a 0.1-μF bypass capacitor between VCC and GND to ensure proper power supply decoupling.
• What is the propagation delay time of the SN74HC257N?
  The propagation delay time of the SN74HC257N is typically around 10 ns, but it can vary depending on the operating conditions and load capacitance.
• Can I use the SN74HC257N as a demultiplexer?
  Yes, the SN74HC257N can be used as a demultiplexer by connecting the output enable (OE) input to GND and using the select inputs (S0 and S1) to select the output.
• How do I handle the output enable (OE) input?
  The output enable (OE) input is active-low, meaning that the outputs are enabled when OE is low (connected to GND) and disabled when OE is high (connected to VCC).