The 555 Timer is a highly stable device for generating accurate time delays or oscillations. 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 the duty cycle are accurately controlled with two external resistors and one capacitor. The circuit may be triggered and reset on falling waveforms. Features: - Timing from microseconds to hours
- Adjustable duty cycle
- Operates in all multibibrator modes.
- Output and supply TTL compatible
- Temperature stability better than 0.005% per 0C.
- Normally ON and Normally OFF output.
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