These SA555DRE4 devices are precision timing circuits capable of producing accurate time delays or oscillation. In the time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and capacitor network. In the astable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor.
• Timing From Microseconds to Hours
• Adjustable Duty Cycle
• Astable or Monostable Operation up to 200 mA
• TTL-Compatible Output Can Sink or Source