555 Timer datasheet
555 Timer IC is an integrated circuit (chip) used in various timer applications, pulse generation and oscillator applications. 555 can be used as a time delay, oscillator, and flip-flop device.
555 Timer is a common integrated circuit. It's used as a switch to turn things on and off quickly. 555 When using a timer, use either resistance or capacitors. Parts such as resistors and capacitors can control the switch depending on the resistance value or capacity.