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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.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LM555QML Timer datasheet (Rev. C) | 29 Mar 2013 | |
| Application note | AN-694 A DMOS 3A, 55V, H-Bridge: The LMD18200 (Rev. C) | 26 Apr 2013 | ||
| More literature | Die D/S LM555 MWC Timer | 24 Oct 2012 |
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| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| CDIP (NAB) | 8 | Ultra Librarian |
| TO-CAN (LMC) | 8 | Ultra Librarian |
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