SN74ALS990N datasheet by Texas Instruments

SN74ALS990N Frequently Asked Questions (FAQs)

• What is the maximum clock frequency that the SN74ALS990N can handle?
  The SN74ALS990N can handle clock frequencies up to 100 MHz.
• How do I ensure that the SN74ALS990N is properly powered?
  The SN74ALS990N requires a single 5V power supply, and it's recommended to use a decoupling capacitor of 0.1uF to 1uF between VCC and GND to ensure proper power supply decoupling.
• What is the maximum current that the SN74ALS990N can sink or source?
  The SN74ALS990N can sink or source up to 24mA of current per output pin.
• How do I handle the asynchronous reset input (RST) on the SN74ALS990N?
  The RST input should be tied to VCC through a pull-up resistor (e.g. 1kΩ) to ensure proper reset operation. A low-going pulse on RST will reset the device.
• What is the propagation delay of the SN74ALS990N?
  The propagation delay of the SN74ALS990N is typically around 10ns, but can vary depending on the specific application and operating conditions.