Astable/Monostable Multivibrator IC - CD4047

Astable/Monostable Multivibrator IC - CD4047

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Rs. 20
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Rs. 20
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  • Lower power consumption: special CMOS oscillator configuration
  • Monostable (one-shot) or astable (free-running) operation
  • True and complemented buffered outputs
  • Only one external R anc C required
  • Buffered inputs
  • 100% tested for quiescent current at 20 V
  • Standardized, symmetrical output characteristics
  • 5-V, 10-V, and 15-V parametric ratings
  • Meets all requirements of JEDEC Tentative Standard No. 13B, "Standard Specifications for Description of 'B' Series CMOS Devices"

Related Tags
CD4X IC Series
Electronic Components

Astable/Monostable Multivibrator IC - CD4047

CD4047 consists of a gateable astable multivibrator with logic techniques incorporated to permit positive or negative edge-triggered monostable multivibrator action with retriggering and external counting options.

Inputs include +TRIGGER, -TRIGGER, ASTABLE, ASTABLE\, RETRIGGER, and EXTERNAL RESET. Buffered outputs are Q\, Q an OSCILLATOR. In all modes of operation, an external capacitor must be connected between C-Timing and RC-Common terminal, and an external resistor must be connected between the R-Timing and RC-Common terminals.

Astable operation is enabled by a high level on the STABLE input or a low level on the ASTABLE\ input, or both. The period of the square wave at the Q and Q\ Outputs in this mode of operation is a function of the external components employed. "True" input pulses on the ASTABLE input or "Complement" pulses on the ASTABLE\ input allow the circuit to be used as a gateable multivibrator. The OSCILLATOR output period will be half of the Q terminal output in the astable mode. However, a 50% duty cycle is not guaranteed at this output.

The CD4047 triggers in the monostable mode when a positive-going edge occurs on the +TRIGGER-input while the -TRIGGER is held low. Input pulses may be of any duration relative to the output pulse.

The CD4047-Series types are supplied in 14-lead hermetic dual-in-line ceramic packages (F3A suffix), 14-lead dual-in-line plastic packages (E suffix), 14-lead small-outline packages (M, MT, M96, and NSR suffixes), and 14-lead thin shrink small-outline packages (PW and PWR suffixes).


Digital equipment where low-power dissipation and/or high noise immunity are primary design requirements:

  • Envelope detection
  • Frequency multiplication
  • Frequency division
  • Frequency discriminators
  • Timing circuits
  • Time-delay applications

Package Includes:

Selected qty of IC - CD4047


Part number CD4047B
Technology Family CD4000
VCC (Min) (V) 3
VCC (Max) (V) 18
Channels (#) 1
ICC @ nom voltage (Max)(mA) 600
IOL (Max) (mA) 4
IOH (Max) (mA) -4
Rating See Data Sheet
Input Type Standard CMOS
Output Type Push-Pull
Features Balanced