INTEGRATED CIRCUITS NE/SA/SE555/SE555C Timer Product data Supersedes data of 1994 Aug 31 Philips Semiconductors 2003 Feb 14 Philips Semiconductors Timer Product data NE/SA/SE555/SE555C DESCRIPTION The 555 monolithic timing circuit is a highly stable controller capable of producing accurate time delays, or oscillation.
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 the duty cycle are both accurately controlled with two external resistors and one capacitor.
The circuit may be triggered and reset on falling waveforms, and the output structure can source or ...

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