555/556 Timer - Pimoroni
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555/556 Timer

  • TS555CN  COM0207


    44 in stock
  • NE556  COM0208


    20 in stock

The 555 timer is one of the most used and useful ICs ever produced. Designed in 1971 by Hans Camenzind it provides a way to include different methods of timing and oscillation into your circuits.

In the time delay mode the time is precisely controlled by one external resistor and capacitor. In oscillator mode the frequency and duty cycle are controlled with two external resistors and one capacitor.

  • Ideal for use in 5V circuits
  • Multiple modes:
    • Astable: square wave of configurable frequency
    • Monostable: pulse of configurable duration on trigger
    • Bistable: output dependant on two input states
    • Inverting buffer: output is opposite of input
  • Can be used with breadboard and perfboard easily

Available in both a single (555) and dual (556) package. The dual package contains two 555 timers which share common ground and source pins.

555 556
Package DIP8 DIP14
Maximum Frequency 2.7 MHz 500 kHz
Supply Current 65 uA 10mA
Source Or Sink 10mA Sink, 50mA source 200mA
Supply Voltage 2V - 16V 4.5V - 16V
Datasheet TS555CN

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