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NE556 IC – Dual Timer IC

29.00 Excluding tax

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The NE556 IC devices provide two independent timing circuits of the NE555  type in each package. These circuits can be operated in the a stable 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. The threshold (THRES) and trigger (TRIG) levels normally are two-thirds and one-third, respectively, of VCC. These levels can be altered by using the control voltage (CONT) terminal. When the trigger input falls below 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 the discharge (DISCH) terminal and ground (GND).

Features:- 

  • Two Precision Timing Circuits Per Package
  • A stable or Monostable Operation
  • TTL-Compatible Output Can Sink or Source up to 150 mA
  • Active Pull up or Pull down
  • Designed to Be Interchangeable With Signetics NE556

Specification:-

Symbol Parameter Min Max Unit
VCC Supply voltage 4.5 16 V
VI Input voltage vcc V
IO Output current ±200 mA
TA Operating free-air temperature 0 70 °C

NE556-IC-Dual-Timer

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

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