SN74HC02DE4 datasheet by Texas Instruments

SN74HC02DE4 Frequently Asked Questions (FAQs)

• What is the maximum operating frequency of the SN74HC02DE4?
  The maximum operating frequency of the SN74HC02DE4 is typically around 100 MHz, but it can vary depending on the specific application, supply voltage, and output load.
• How do I ensure reliable operation of the SN74HC02DE4 in high-temperature environments?
  To ensure reliable operation in high-temperature environments, make sure to operate the device within its recommended operating temperature range (-40°C to 125°C), and consider using a heat sink or thermal management techniques to keep the device temperature below 125°C.
• What is the input voltage threshold for the SN74HC02DE4?
  The input voltage threshold for the SN74HC02DE4 is typically around 0.5VCC (half of the supply voltage), but it can vary depending on the specific device and operating conditions.
• Can I use the SN74HC02DE4 with a 3.3V supply voltage?
  Yes, the SN74HC02DE4 can operate with a 3.3V supply voltage, but the output voltage levels may not be as high as those obtained with a 5V supply voltage. Additionally, the device's propagation delay and output current drive may be affected at lower supply voltages.
• How do I handle unused inputs on the SN74HC02DE4?
  Unused inputs on the SN74HC02DE4 should be tied to a valid logic level (either VCC or GND) to prevent floating inputs and ensure reliable operation.