SN74LS377DW datasheet by Texas Instruments

SN74LS377DW Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the SN74LS377DW can handle?
  The maximum clock frequency of the SN74LS377DW is 30 MHz, but it can vary depending on the operating conditions and the quality of the clock signal.
• How do I ensure that the SN74LS377DW is properly powered and decoupled?
  To ensure proper power and decoupling, use a 5V power supply with a minimum of 10uF decoupling capacitor between VCC and GND, and place the capacitor as close to the device as possible.
• What is the maximum current that the SN74LS377DW can sink or source?
  The SN74LS377DW can sink up to 24mA and source up to 12mA per output, but it's recommended to limit the current to 16mA per output to ensure reliable operation.
• How do I handle the asynchronous clear and preset inputs?
  The asynchronous clear and preset inputs should be tied to VCC or GND through a pull-up or pull-down resistor, and should not be left floating. This ensures that the device operates correctly and prevents unwanted state changes.
• What is the recommended layout and routing for the SN74LS377DW?
  To minimize noise and ensure reliable operation, use a solid ground plane, keep the clock signal traces short and away from other signals, and use a star topology for the power supply connections.