SN74LS592D datasheet by Texas Instruments

SN74LS592D Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the SN74LS592D can handle?
  The maximum clock frequency of the SN74LS592D is 20 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 SN74LS592D is properly reset during power-up?
  To ensure proper reset, connect the MR (Master Reset) pin to a pull-up resistor and a capacitor to VCC. This will ensure that the device is reset during power-up and holds the reset state until the capacitor is fully charged.
• What is the recommended operating voltage range for the SN74LS592D?
  The recommended operating voltage range for the SN74LS592D is 4.75V to 5.25V. Operating the device outside this range may affect its performance and reliability.
• Can I use the SN74LS592D in a 3.3V system?
  No, the SN74LS592D is not designed to operate at 3.3V. It's a 5V device and operating it at 3.3V may not provide reliable operation or may even damage the device.
• How do I handle the asynchronous clear input (CLR) during normal operation?
  The CLR input should be tied to VCC through a pull-up resistor during normal operation to prevent accidental clearing of the counter. If you need to clear the counter, pull the CLR pin low for a minimum of 10 ns.