555 Timer

The 555 timer IC is one of the most common ever made. It is a simple timer and oscillator that turns up in all kinds of circuits. Commonly used to generate tones, increment counters and blink lights. 4.5-16V supply with TTL compatible output.

AUD$ 1.85

In stock in Australia  

Our supplier is out of stock

Our Code: SKU-000368

Supplier Link: [SparkFun MPN:9273]


This is a common 555 timer/oscillator from TI. A classic for all of those first year circuits projects where you need to blink an LED, generate tone, and thousands of other great beginning projects. Google around for a huge list of resources and example projects.


  • 4.5V to 16V supply
  • 8-pin DIP package
  • Timing from microseconds to hours
  • Astable or monostable operation
  • Adjustable duty cycle
  • TTL compatible output
  • Sink or source up to 200mA


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