NA556 timers equivalent, dual precision timers.
* Two Precision Timing Circuits Per Package
* Astable or Monostable Operation
* TTL-Compatible Output Can Sink or Source
up to 150 mA
* Active Pullup or P.
* Precision Timers From Microseconds to Hours
* Pulse-Shaping Circuits
* Missing-Pulse Detectors
* Tone-.
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