The recommended operating voltage range for the SN74HC04DBRE4 is 2V to 6V, with a typical voltage of 5V.
When the input pins are not in use, it is recommended to tie them to VCC or GND through a pull-up or pull-down resistor to prevent floating inputs and reduce power consumption.
The maximum frequency of operation for the SN74HC04DBRE4 is typically around 25 MHz, but it can vary depending on the specific application and operating conditions.
To ensure that the output signals are not distorted or attenuated, it is recommended to use a suitable load impedance and to keep the output traces short and well-terminated to minimize signal reflections and ringing.
Yes, the SN74HC04DBRE4 can be used in a 3.3V system, but the output voltage levels may not be as high as those in a 5V system, and the noise margin may be reduced.