TC74HC04AF Applications：

1. Signal Conditioning: The TC74HC04AF can be used to invert digital signals, which is useful for signal conditioning in various digital systems. It can be used to convert a logic high to a logic low and vice versa.
2. Clock Buffering: In digital systems where clock signals need to be distributed to multiple components, the TC74HC04AF can be used as a buffer to isolate the input clock signal from the loads and maintain signal integrity.
3. Logic Level Conversion: In mixed-voltage systems, where different parts of the system operate at different voltage levels, the TC74HC04AF can be used to perform logic level conversion by interfacing between different voltage domains.
4. Waveform Shaping: The TC74HC04AF can be used to shape digital waveforms by inverting and buffering signals as needed. This can be useful in applications such as pulse shaping and waveform generation.
5. Digital Logic Circuits: The TC74HC04AF can be integrated into various digital logic circuits, such as oscillators, counters, and timers, to perform logic operations like inversion.
6. Clock Generation: By cascading multiple inverters, the TC74HC04AF can be used to generate clock signals with different frequencies from an input clock source.
7. Microcontroller Interfacing: The TC74HC04AF can be used to interface between a microcontroller and other digital components, providing signal buffering and level shifting as necessary.
8. Voltage Monitoring: In voltage monitoring circuits, the TC74HC04AF can be used to monitor the state of a voltage signal and provide an inverted output signal based on certain voltage thresholds.