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NE555 Timer IC

8.00 Excluding tax

Availability: In stock

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The NE555 IC 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 a stable mode of operation, the frequency and duty cycle can be controlled independently with two external resistors and a single external capacitor. The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by use of the control-voltage terminal. When the trigger input falls below the trigger level, the flip-flop is set, and the output goes high. If the trigger input is above the trigger level and the threshold input is above the threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset, and the output goes low. When the output is low, a low impedance path is provided between discharge (DISCH) and ground. The output circuit is capable of sinking or sourcing current up to 200 mA. Operation is specified for supplies of 5V to 15V. With a 5-V supply, output levels are compatible with TTL inputs.

Features:- 

  •  Timing from microseconds to hours
  • A stable or monostable operation
  • Adjustable duty cycle
  • TTL compatible output can source or sink up to 200 mA
  • “Green” Molding Compound (No Br, Sb)
  • Lead Free Finish/ RoHS Compliant

Specification:-

Symbol Parameter Rating Unit
VCC Supply voltage 18 V
VI Input voltage VCC V
IO Output current ±225 mA
Θja Package thermal resistance Junction-to-Ambient 130 °C/W
θJC Package thermal resistance Junction-to-Case 15 °C/W
TJ Junction temperature 150 °C
TSTG Storage temperature -65 to 150 °C

Datasheet

* product image for illustration purposes only. actual product may vary.

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