CD4047BCMX

Multivibrators Overview

The CD4047BCMX is a low-power monostable/astable multivibrator IC in the 4000 series, manufactured by onsemi (formerly Fairchild). It operates within a supply voltage range of 3.0V to 15V and supports an operating temperature range from -55°C to +125°C. The device utilizes a single external resistor and capacitor to determine output pulse width or frequency. It features true and complemented buffered outputs, high noise immunity, and TTL compatibility.

Multivibrators Feature Summary

• Supports both monostable and astable operation modes with retriggerable options for pulse expansion
• Provides true and complemented buffered outputs with high noise immunity
• Requires only one external resistor and capacitor for timing configuration
• Compatible with low power TTL logic families

Multivibrators Applications

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

Multivibrators Procurement Notes

Verify that the ordering code includes the 'X' suffix to confirm the tape and reel packaging format. Ensure the component matches the SOIC-14 package description M14A. Confirm RoHS compliance status as specified in the manufacturer's documentation before procurement.

Multivibrators Selection Notes

Select this component when a low-power CMOS solution for precise timing or frequency generation is required. It is suitable for designs needing wide supply voltage flexibility and high noise immunity. Consider the external RC network requirements for desired pulse widths or frequencies.

Multivibrators Part Context

This part belongs to the CD4000 series of CMOS logic devices. It is functionally equivalent to other CD4047 variants but packaged in a Small Outline Integrated Circuit (SOIC) format. The 'M' indicates the SOIC package type, while 'X' denotes the tape and reel delivery method.

Multivibrators Replacement Considerations

CD4047BCM

Multivibrators FAQ

How is the output frequency determined in astable mode?

The output frequency at Q and Q outputs is determined by the values of the external resistor connected between pins 2 and 3 and the external capacitor connected between pins 1 and 3.

Can the device be retriggered?

Yes, the device can be retriggered by applying a simultaneous LOW-to-HIGH transition to both the positive trigger input and the retrigger input.