CD4047 Monostable Astable Multivibrator IC




11 in stock

29.00 (Exc. GST)

11 in stock

The CD4047 is capable of operating in either the monostable or astable mode. It requires an external capacitor (between pins 1 and 3) and an external resistor (between pins 2 and 3) to determine the output pulse width in the monostable mode, and the output frequency in the astable mode.

Astable operation is enabled by a high level on the astable input or low level on the astable input. The output frequency (at 50% duty cycle) at Q and Q outputs is determined by the timing components. A frequency twice that of Q is available at the Oscillator Output; a 50% duty cycle is not guaranteed.

Monostable operation is obtained when the device is triggered by LOW-to-HIGH transition at + trigger input or HIGH-to-LOW transition at – trigger input. The device can be retriggered by applying a simultaneous LOW-to-HIGH transition to both the + trigger and retrigger inputs. A high level on Reset input resets the outputs Q to LOW, Q to HIGH.


  • Wide supply voltage range: 3.0V to 15V.
  • High noise immunity: 0.45 VDD (typ.).

Special Features:

  • Low power consumption: special CMOS oscillator configuration.
  • Monostable.
  • True and complemented buffered outputs.
  • Only one external R and C required.
SKU: 764 Categories: ,

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