SN74HC139DR datasheet by Texas Instruments

SN74HC139DR Frequently Asked Questions (FAQs)

• What is the maximum frequency of operation for the SN74HC139DR?
  The maximum frequency of operation for the SN74HC139DR is 25 MHz.
• Can I use the SN74HC139DR in a 5V system?
  Yes, the SN74HC139DR is compatible with 5V systems, but it can also operate at lower voltages down to 2V.
• How do I ensure that the SN74HC139DR is properly powered?
  To ensure proper operation, the SN74HC139DR requires a stable power supply with a decoupling capacitor (e.g., 0.1 μF) connected between VCC and GND, as close to the device as possible.
• What is the maximum current that the SN74HC139DR can sink or source?
  The SN74HC139DR can sink or source up to 25 mA of current per output pin.
• Can I use the SN74HC139DR in a high-temperature environment?
  The SN74HC139DR is rated for operation from -40°C to 85°C, but it can be derated for higher temperatures. Consult the datasheet for specific derating information.