rangkaian flip flop ic 555Pin 1 ic ne555 (GND) function. Negative Voltage Input ; Function Pin 2 IC NE555 (Trger). Low Trger Logic Input ; Function Pin 3 IC NE555 (The document summarizes an experiment on creating a flip-flop circuit using an IC 555 timer. It includes: 1) An introduction describing the IC 555 timer and its three operating modes,