LM555 Timer IC 

The LM555 is a highly stable device for generating accurate time delays or oscillation. Additional terminals are provided for triggering or resetting if desired. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor. For a stable operation as an oscillator, the free running frequency and duty cycle are accurately controlled with two external resistors and one capacitor.

Features :

• Direct Replacement for SE555/NE555
• Timing from Microseconds through Hours
• Operates in Both Astable and Monostable Modes
• Adjustable Duty Cycle
• Output Can Source or Sink 200 mA

Applications :

• Precision Timing
• Pulse Generation
• Sequential Timing
• Time Delay Generation
• Pulse Width Modulation

Pin Configuration and Functions :

Absolute Maximum Ratings :

• Supply Voltage 4.5 16 V
• Accuracy over Temperature 1.5 %
• Drift with Supply 0.1 % V

Download LM555 Trimer IC datasheet pdf.