The 555 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 astable operation as an oscillator, the free running frequency and duty cycle are accurately controlled with two external resistors and one capacitor. The circuit may be triggered and reset on falling waveforms, and the output circuit can source or sink up to 200mA or drive TTL circuits.Features:Timing from microseconds through hoursOperates in both astable and monostable modesAdjustable duty cycleOutput can source or sink 200 mAOutput and supply TTL compatibleTemperature stability better than 0.005% per°CNormally on and normally off outputApplications:Precision timingPulse generationSequential timingTime delay generationPulse width modulationPulse position modulationLinear ramp generator8 pin DIP. Actual brand may vary from picture.G32128
