The maximum frequency of operation for the HEF4071BP is typically around 10 MHz, but it can vary depending on the specific application and operating conditions.
To ensure proper power supply, connect VCC to a stable 5V power source, and GND to a reliable ground connection. Also, make sure to decouple the power supply with a 100nF capacitor.
The HEF4071BP can sink or source up to 20mA of current per output pin, but it's recommended to keep the current below 10mA to ensure reliable operation.
Unused inputs should be connected to VCC or GND through a 1kΩ resistor to prevent floating inputs and ensure proper operation.
The HEF4071BP is rated for operation up to 70°C, but it's not recommended for high-temperature applications above 85°C. For high-temperature applications, consider using a more suitable device.