The SA555P is a precision timer manufactured by Texas Instruments. It is an 8-pin DIP device, and it features a monolithic avalanche transistor design for outstanding noise immunity. The SA555P can be used for a variety of timings with its two external resistors and its on-chip capacitor. It also features low power consumption, and its temperature range is -40°C to +85°C. The SA555P can provide ranges from microseconds to hours, and is stable with temperature, supply voltage, and component tolerances. It is also designed to be used in circuits for pulse generation, sequencing, time-delay, and oscillator applications.