SN74LS93D datasheet by Texas Instruments

SN74LS93D Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the SN74LS93D can handle?
  The maximum clock frequency of the SN74LS93D is 2.5 MHz, but it can vary depending on the specific application and operating conditions.
• How do I ensure that the SN74LS93D is properly powered?
  The SN74LS93D requires a single 5V power supply, and it's recommended to use a decoupling capacitor (e.g., 0.1 μF) between VCC and GND to reduce noise and ensure stable operation.
• What is the maximum output current that the SN74LS93D can sink or source?
  The SN74LS93D can sink or source up to 16 mA of current per output pin, but it's recommended to limit the output current to 10 mA or less to ensure reliable operation.
• How do I reset the SN74LS93D counter?
  The SN74LS93D has an asynchronous reset input (R) that can be used to reset the counter to zero. The reset input is active-low, so it should be pulled low to reset the counter.
• Can I use the SN74LS93D as a divide-by-N counter?
  Yes, the SN74LS93D can be used as a divide-by-N counter by connecting the Q3 output to the CLK input and using the R input to reset the counter. The divide ratio (N) can be set by connecting the Q0-Q3 outputs to the CLK input.