The CD4047 is a low-powered monostable/astable multivibrator IC. The CD4047 IC allows a positive or negative edge-triggered monostable multivibrator mode with retriggering and external counting options
Supply voltage range: 3.0V to 15V
The CD4047 consists of 14 pins for both- a small outline integrated circuit and a dual-inline package
Maximum Power Dissipation(Pd): 700mW in DIP Package
Low power consumption: special CMOS oscillator for low power configuration
Operates in both Monostable(one-shot) and Astable(free-running) operation
The CD4047 IC is a low power CMOS logic based multivibrator circuit IC. It can operate either in the monostable or astable mode. Furthermore, this IC is easy to configure for both modes and requires few external components to operate. It has a voltage range of 3V-15V but works best at 5V.
AlternativesCD4047BCMX, CD4047BCM, CD4047BCN
Pin Configuration
Pin 1(C) Can be connected to an external capacitor
Pin 2(R) Can be connected to an external resistor
Pin 3(R-C COMMON) Common pin to connect with resistor and capacitor
Pin 4(ASTABLE BAR) Set to Low when used in astable mode
Pin 5(ASTABLE) Set to high when used in astable mode
Pin 6(-TRIGGER) High to Low transition needs to be applied when used in monostable mode
Pin 7(VSS) Ground Pin
Pin 8(+TRIGGER) Low to High transition needs to be applied when used in monostable mode
Pin 9(EXT RESET) An external reset signal can be provided to this pin
Pin 10(Q) Generates high output
Pin 11(Q BAR) Provides an inverse output of pin 10
Pin 12(RETRIGGER) Used to simultaneously retriggering the pins 6 and 8
Pin 13(OSC OUT) Generated Oscillated output
Pin 14(VDD) Voltage Supply Pin
Monostable Mode Features
Positive and negative edge trigger pins for enabling monostable operation.
The output pulse width is independent of the trigger pulse duration.
Retrigger pin is available for expansion of pulse width.
Astable Mode Features
Creates a 50% duty cycle
Free running operating mode with oscillated output
