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LM555QML - Timer

General Description

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.

Key Features

  • 1.
  • 2 Direct Replacement for SE555/NE555.
  • Timing from Microseconds through Hours.
  • Operates in Both Astable and Monostable Modes.
  • Adjustable Duty Cycle.
  • Output can Source or Sink 200 mA.
  • Output and Supply TTL Compatible.
  • Temperature Stability Better than 0.005% per °C.
  • Normally On and Normally Off Output.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM555QML www.ti.com SNOSAP2C – AUGUST 2005 – REVISED APRIL 2013 LM555QML Timer Check for Samples: LM555QML FEATURES 1 •2 Direct Replacement for SE555/NE555 • Timing from Microseconds through Hours • Operates in Both Astable and Monostable Modes • Adjustable Duty Cycle • Output can Source or Sink 200 mA • Output and Supply TTL Compatible • Temperature Stability Better than 0.005% per °C • Normally On and Normally Off Output DESCRIPTION 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.