What is 555 timer IC?
[[File:555 timer circuit perforated board.jpg|thumb|A circuit using a 555 timer. The timer is the black rectangle.]] The '''NE555''' is a common IC (or integrated circuit) introduced in 1972. It is used in [[timer]]s. It is popular among [[Hobby|hobbyists]] and can be found in many electronics stores that sell bare components, such as RadioShack. {{tech-stub}} [[Category:Electronic components]] [[Category:Electronic circuits]]