How can the NE555 be used to create a NOT GATE?

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SUMMARY

The NE555 timer can be configured to create a NOT gate by utilizing its internal circuitry, specifically by analyzing the simplified schematic and typical waveforms found in its datasheet. The inversion function is achieved by observing the relationship between the output and input waveforms, where one signal goes high while the other goes low. For detailed implementation, refer to the NE555 datasheet available at this link.

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electronic engineer
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is there anyway to Design NOT GATE using NE555?
 
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Can you post a link to a datasheet for the 555? Just look on the simplified schematic in the datasheet for the chip to see if you can find any inversion possibilities. BTW, is this a homework problem?
 
electronic engineer said:
no this is not homework problem
Good, then it's posted in the right forum. Take a look at this datasheet (found it quickly with Google):

http://cache.national.com/ds/LM/LM555.pdf

Look at the simplified schematic of the 555 internal circuit, and then look at the typical waveforms farther down in the Applications section. Do you see how some waveforms go high when others go low, and visa-versa? Ther's your clue to how to make an inversion function...
 
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