| Pin |
Symbol |
Description |
| 1 | GND | Ground |
| 2 | TRIGGER | Responsible for transition of the flip-flop from set to reset. |
| 3 | OUTPUT | Output driven waveform |
| 4 | RESET | Negative pulse applied to this pin to disable or reset the timer. When not use for reset purpose , it should be connected to VCC to avoid false triggering |
| 5 | CONTROL VOLTAGE | Controls the threshold and trigger levels. It determine the pulse width of the output waveform. An external voltage applied to this pin can also be used to modulate the output waveform |
| 6 | THRESHOLD | The amplitude of voltage applied to this terminal is responsible for the set state of the FLIP-FLOP |
| 7 | DISCHARGE | Open collector output which discharge a capacitor between intervals. it toggles the output from high to low when voltage reaches 2/3 of the supply voltage |
| 8 | VCC | Supply volatge |
