CD4047 Monostable/Astable Multivibrator

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CD4047 belongs to the 4000 Series CMOS Logic Family of Integrated Circuits (IC’s) constructed with N- and P-channel enhancement mode transistors. CD4047 has Monostable/Astable Multivibrator

CD4047 has a supply voltage range of 5V to 20V, which is much higher than any contemporary logic family. It has buffered output which improves transfer characteristics by providing very high gain. All inputs are protected against static discharge with diodes to VDD and VSS.

CD4047 Features

MONOSTABLE MULTIVIBRATOR FEATURES
  • Positive- or negative-edge trigger
  • Output pulse width independent of trigger pulse duration
  • Retriggerable option for pulse width expansion
  • Long pulse widths possible using small RC components by means of external counter provision
ASTABLE MULTIVIBRATOR FEATURES
  • Free-running or gatable operating modes
  • 50% duty cycle
  • Oscillator output available
  • Good astable frequency stability

CD4047 Specifications

Absolute Maximum Ratings

  • DC Supply Voltage Range, (VDD): -0.5V to +18V (Voltage Referenced to VSS Terminals)
  • Input Voltage Range, All Inputs: -0.5V to VDD +0.5V
  • Storage Temperature Range (TSTG): -65oC to +150oC
  • Lead Temperature (During Soldering): +260oC
  • Power Dissipation (PD)
    • Dual-In-Line 700 mW
    • Small Outline 500 mW

CD4047 Pinout Diagram

CD4047 Pin Description

Pin NoPin NameDescription
1CCapacitor
2RResistor
3RC COMMONResistor-Capacitor Common Pin
4ASTABLE’Inverse Astable Pin
5ASTABLE Astable Pin
6– TRIGGERNegative Trigger Pin
7VSSSupply Voltage
8+ TRIGGERPositive Trigger Pin
9EXT RESETExternal Reset Pin
10QOutput Of Astable/Monostable
11Q’ Invert Output Of Astable/Monostable
12RETRIGGERRETrigger Pin
13OSC OUTOscillator Output Pin
14VDDDrain Voltage

CD4047 Circuit

Applications

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

CD4047 Alternative Equivalent

CD4538

Download CD4047 Monostable/Astable Multivibrator Datasheet from the link given below.