How many pins are there on a 555 Timer Circuit?

The 555 Timer is a highly versatile integrated circuit commonly used for timer, delay, pulse generation, and oscillator applications. The correct answer indicates that there are eight pins on a standard 555 Timer IC.

Each of these pins serves a specific function:

1. Ground (Pin 1): This pin is connected to the negative supply voltage.

2. Trigger (Pin 2): This pin is used for triggering the timer; a negative pulse on this pin causes the output to switch states.

3. Output (Pin 3): The output pin provides the timer's output signal.

4. Reset (Pin 4): This pin can be used to reset the timer if desired.

5. Control Voltage (Pin 5): This pin allows for overriding the timing capacitor for frequency modulation.

6. Threshold (Pin 6): This pin is connected to the timing capacitor, and when this voltage exceeds 2/3 of the supply voltage, the output state will change.

7. Discharge (Pin 7): This pin is connected to the timing capacitor and discharges it when the output goes low.

8. VCC (Pin 8): This is the supply