NE/SA/SE556/NE556-1 is a dual timer circuit, which is a dual integrated timer circuit of 555. It has high precision and stability and is used to generate accurate time delays or oscillation. The two timers operate independently of each other, sharing only VCC and GND. The clock can be provided by an external resistor and capacitor for each timing function.
The NE556 family are dual monolithic timing circuits that function as two independent 555 timers in a single package. They support astable, monostable, and pulse‑width modulation modes, with timing from microseconds to hours, and can sink or source up to 200 mA.
The devices are offered in various 14‑pin packages (SO, DIP, CERDIP) with operating temperature ranges from –55 °C to +125 °C and supply voltages up to +18 V. The datasheet includes absolute maximum ratings, detailed electrical characteristics, ordering information, and example circuits for sequential timing and other applications.