The good ol’ classic 555 precision timer. Designed more than 40 years ago, this IC is still massively used and a lot of projects and resources can be found online.

It can be use as a simple timer, pulse generation, as an oscillator and more.

TI part number: NE555P


  • Supply voltage: 4.5V-16V
  • Timing from microseconds to hours
  • Astable or monostable operation
  • Adjustable duty cycle
  • TTL-compatible output can sink up to 200 mA


  • Pulse-shaping circuits
  • Missing-pulse detectors
  • Tone-burst generators
  • Pulse-width modulators
  • Pulse-position modulators
  • Sequential timers
  • Pulse generators
  • Frequency dividers
  • Application timers
  • Industrial controls
  • Touch-tone encoders


Additional information

Weight 0.010 kg
Dimensions 10.16 × 7.11 × 8.38 mm



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555 Precision Timer

555 precision timer. Texas Instruments NE555.


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