Description-
NE555 is a precision timer IC, capable of producing accurate time delays and oscillation. In the time delay mode of operation, the time interval is controlled by a single external resistor. In the stable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor. The output circuit is capable of sinking or sourcing current up to 200 mA. Moreover, the operation is specifying for supplies of 5 V to 15 V. Because of a 5V supply, output levels are compatible with TTL inputs.
 
Specifications-
-Supply voltage  : 5V to 16V
-Supply current : 3 to 6 mA
-Output current : 200mA
-Power dissipation : 600mW
-Accurate time delays and oscillation
-Stable or monostable operation
 
Applications / Suggested Uses -
Pulse Generation
Flashers
Logic Clocks
Tone Generation
Security Alarm
Pulse-Position Modulation (PPM)
Relaxation Oscillator