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 a stable 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 200 mA or drive TTL circuits.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Data sheet | LM555 Timer datasheet (Rev. D) | PDF | HTML | 21 Oct 2014 |
| Application note | Considering TI Smart DACs As an Alternative to 555 Timers | PDF | HTML | 02 Sep 2021 | |
| Application note | HS Load/Line Transient Jigs and App Rpt for Testing POL Regulators | 30 Apr 2013 | ||
| Application note | AN-694 A DMOS 3A, 55V, H-Bridge: The LMD18200 (Rev. C) | 26 Apr 2013 |
For additional terms or required resources, click any title below to view the detail page where available.
| Package | Pins | CAD symbols, footprints & 3D models |
|---|---|---|
| PDIP (P) | 8 | Ultra Librarian |
| SOIC (D) | 8 | Ultra Librarian |
| VSSOP (DGK) | 8 | Ultra Librarian |
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