4028BDM

Overview

The CD4028BDM is a CMOS decimal decoder/driver belonging to the 4000/14000/40000 series. It converts four-bit binary-coded decimal (BCD) inputs into one-of-ten active-high outputs. The device operates with a wide supply voltage range and features buffered outputs for improved performance. It is housed in a DIP-16 package.

Feature Summary

• Performs BCD to decimal decoding
• Provides ten active-high outputs
• Features fully buffered outputs

Applications

• Digital display systems
• Decoding circuits
• Driver applications

Procurement Notes

Verify the manufacturer origin, as National Semiconductor assets are held by Texas Instruments. Confirm the specific suffix 'DM' corresponds to the requested ceramic or plastic DIP-16 package variant. Ensure the component meets required operating temperature ranges and logic compatibility standards before procurement.

Selection Notes

Select this component for applications requiring direct BCD-to-decimal conversion with high-drive capability. Consider the wide supply voltage range and buffered output characteristics when designing interface circuits. Verify pinout compatibility with existing PCB layouts if replacing older variants.

Part Context

This part belongs to the standard 4000-series CMOS logic family. It serves as a fundamental building block for digital counting and display systems. The device provides reliable decoding functionality with low power consumption typical of CMOS technology.

Replacement Considerations

Compatible substitutes include HEF4028B from NXP Semiconductors and MC14028B from ON Semiconductor. These parts share identical logical functions and pinouts, ensuring interchangeability in most designs.