CD4538BCM

Multivibrators Overview

The CD4538BCM is a dual precision monostable multivibrator manufactured by Fairchild Semiconductor, now part of onsemi. It operates within a supply voltage range of 3.0V to 15V and features independent trigger and reset controls with internally latched inputs. The device supports both rising and falling edge triggering via inputs A and B, while the active LOW clear input inhibits triggering when asserted. Pulse width is determined by external components RX and CX using the formula PWOUT = RC. It offers symmetrical output sink and source capabilities, high noise immunity, and low standby current.

Multivibrators Feature Summary

• Dual precision monostable multivibrator with retriggerable and resettable functionality
• Supports independent rising or falling edge triggering through dedicated control inputs
• Provides separate latched reset inputs for precise timing cycle management
• Features symmetrical output sink and source capability with high noise immunity

Multivibrators Applications

• Timing pulse generation circuits
• Debouncing switches and contacts
• Pulse width modulation applications
• Frequency division circuits

Multivibrators Procurement Notes

Verify that the component matches the specific SOIC-16 package configuration designated by the BCM suffix. Confirm the manufacturer origin aligns with Fairchild Semiconductor specifications or authorized successors. Ensure the ordering code corresponds to the narrow body JEDEC MS-012 standard. Cross-reference electrical characteristics against the official datasheet to guarantee compatibility with existing system requirements.

Multivibrators Selection Notes

Select this component when dual independent monostable circuits are required in a compact surface-mount format. The wide supply voltage range accommodates various logic families. Consider the linear CMOS techniques used for precise pulse-width stability across temperature variations. Evaluate the pin compatibility with legacy CD4528BC designs if migration from older technologies is necessary.

Multivibrators Part Context

This device belongs to the CD4538BC family of dual precision monostable multivibrators. It utilizes advanced silicon-gate CMOS technology to achieve performance comparable to low-power Schottky TTL while retaining CMOS power advantages. The BCM variant specifically denotes the 16-Lead Small Outline Integrated Circuit package, distinguishing it from DIP or wide SOIC options within the same functional family.

Multivibrators Replacement Considerations

The CD4538BCM is pin compatible with the CD4528BC. Designers migrating from previous generations should verify that the new device meets the specific timing accuracy and voltage requirements of the original design without requiring schematic modifications.