LM555 Datasheet PDF – Timer IC ( SE555 / NE555 )

Part number : LM555

Functions : Timer(Direct Replacement for SE555/NE555)

Package : 8 Pin DIP or SOP

Manufacturer : Texas Instruments, National Semiconductor

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LM555 Timer IC

LM555 Datasheet PDF Functions :

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.

Pinout :

LM555 pinout time ic

 

Application Information ( LM555 Datasheet PDF )

The LM555 timer can be used a various configurations, but the most commonly used configuration is in monostable mode. A typical application for the LM555 timer in monostable mode is to turn on an LED for a specific time duration. A pushbutton is used as the trigger to output a high pulse when trigger pin is pulsed low. This simple application can be modified to fit any application requirement.

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.

Applications

• Precision Timing
• Pulse Generation
• Sequential Timing
• Time Delay Generation
• Pulse Width Modulation
• Pulse Position Modulation
• Linear Ramp Generator

 

Features

1. Timing from microseconds through hours
2. Operates in both astable and monostable modes
3. Adjustable duty cycle
4. Output can source or sink 200 mA
5.Output and supply TTL compatible

More Informations

555 Time ic Wiki Info, ne555 timer ic info

Reference page : http://www.datasheetgo.com/555-timer-ic/

LM555 Datasheet PDF

LM555 pdf

Other data sheets within the file : 555CM, 555CN, LM555, LM555CM, LM555CM-NOPB