The NE556 provide two independent timing circuits.
These circuits can be operated in the astable or the monostable mode with external resistor-capacitor (RC) timing control.
The basic timing provided by the RC time constant can be controlled actively by modulating
the bias of the control-voltage input.
- Voltage : 4.5v to 16v
- Two Precision Timing Circuits Per Package
- Astable or Monostable Operation
- TTL-Compatible Output Can Sink or Source up to 150 mA
- Active Pullup or Pulldown