HEF4028BT,653

Overview

The HEF4028BT,653 is a 4-bit BCD to decimal decoder manufactured by Nexperia. It converts Binary Coded Decimal inputs (A0-A3) into one-of-ten active HIGH outputs (Y0-Y9). The device operates on a supply voltage range of 3.0 V to 15.0 V and supports fully static operation with low power dissipation. It features input clamp diodes for interfacing with voltages exceeding VDD. The component is housed in an SO16 plastic small outline package (SOT109-1) and complies with JEDEC standard JESD 13-B.

Feature Summary

• Converts 4-bit BCD codes into ten mutually exclusive active HIGH outputs
• Supports flexible configurations including 1-of-8 decoding and demultiplexing
• Includes input clamp diodes allowing direct interface to voltages above VDD

Applications

• BCD to decimal decoding logic circuits
• Octal decoding using three address bits with enable control
• Demultiplexer applications utilizing address and data inputs

Procurement Notes

Verify the specific ordering suffix matches the required package variant. Confirm that the ambient temperature operating range aligns with system requirements. Ensure design safeguards are implemented as the product is not qualified for life-critical or safety-critical systems. Review the latest datasheet revision for any specification updates before finalizing procurement.

Selection Notes

Select this component when a CMOS BCD to decimal conversion function is required within a 3 V to 15 V supply environment. Consider its high noise immunity and standardized symmetrical output characteristics for robust digital signal processing. Evaluate the SO16 package dimensions against available PCB space constraints during the initial hardware layout phase.

Part Context

This part belongs to the HEF4028B series of BCD to decimal decoders produced by Nexperia. It utilizes Complementary Metal-Oxide Semiconductor technology to achieve low power dissipation while maintaining high noise immunity. The device is designed for general-purpose digital logic applications requiring reliable binary-coded decimal translation.

Replacement Considerations

Consult official Nexperia documentation for verified substitute part numbers. Cross-reference pinouts and electrical specifications carefully to ensure functional compatibility without modifying existing circuit designs.