2. IC 555 Timer

Try these first

1. 1.

   What is the function of the IC 555 timer?

   Hint

   Think about its applications in timers.

2. 2.

   What does monostable mean?

   Hint

   Recall the one-shot function.

3. 3.

   What mode of operation does the IC 555 timer not utilize?

   • Monostable
   • Astable
   • Bistable

   Hint

   Remember the configurations we discussed.

4. 4.

   In monostable mode, what happens when the trigger is released?

   • True
   • False

   Hint

   Think about the one-shot nature.

5. 5.

   Design a circuit using the IC 555 timer in astable mode to blink an LED every half second. Determine R1 and R2 values needed.

   Hint

   Work through the formula using known values.

6. 6.

   Propose an application for the monostable mode that can be used in a safety device. Justify your design choices with timing requirements.

   Hint

   Consider R and C that would lead to a pulse width of 5 minutes.