Texas Instruments NE NE555P Monostable Circuit, 1, 8-Pin PDIP

The NE555P is a precise timing circuit that produces accurate time delays or oscillation. Within the time delay, the timed interval is controlled by an external resistor and an external capacitor.

Timing from microseconds to hours

Consumer Electronics

A range of highly stable precision timing circuits for the generation of accurate time delays or timing pulses. These timers can be operated in monostable (one-shot) or astable (oscillator) mode with timing periods ranging from less than a microsecond to several minutes. In addition to the original bipolar version, low-power CMOS and LinCMOS variants are also available. These devices are capable of longer timing periods and offering a significant reduction in power consumption. The range includes both single (551, 555) and dual (552, 556) versions of the timer.