555 Timer (NE555)

The popular 555 from TI is an easy-to-use timer/oscillator with a friendly price tag. These devices are precision timing circuits capable of producing accurate time delays or oscillation. In the time-delay or mono-stable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the a-stable mode of operation, the frequency and duty cycle can be controlled, independently with two external resistors and a single external capacitor. Specifications Timing from microseconds to hours Astable or monostable operation Adjustable duty cycle TTL compatible output Sink or source up to 200mA Supply Voltage: Vcc, 4.5-16V Max Output Current: ±200mA, ±250mA Max Package: 8-pin PDIP Dimensions (excluding pins) Length: 9.33mm (0.37") Width: 6mm (0.24") Height: 3.34mm (0.13") Resources NE555 Datasheet Pinout