LM556 Datasheet, National Semiconductor

n n n n n n n n n Direct replacement for SE556/NE556 Timing from microseconds through hours Operates in both astable and monostable modes Replaces two 555 timers Adjustab.

n n n n n n n Precision timing Pulse generation Sequential timing Time delay generation Pulse width modulation Pulse pos.

The LM556 Dual timing circuit is a highly stable controller capable of producing accurate time delays or oscillation. The 556 is a dual 555. Timing is provided by an external resistor and capacitor for each timing function. The two timers operate ind.