What has a 555 timer IC in it so I can desolder it and use it?

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 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 There is little point in desoldering one since they are very cheap to buy since the chip is nearly thirty years old NE/SA/SE555/SE555C Timer circuits are all over the net.

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