HEF4585BT,653

Comparators Overview

The HEF4585BT,653 is a 4-bit magnitude comparator manufactured by NXP USA Inc. It compares two 4-bit binary words, designated as A and B, to determine the logical relationship between them. The device provides three distinct outputs indicating whether input A is greater than input B, equal to input B, or less than input B. This component operates within a temperature range of -40°C to 85°C and is housed in a 16-SOIC package with a width of 3.90mm.

Comparators Feature Summary

• Performs 4-bit magnitude comparison between two independent binary inputs
• Provides dedicated logic outputs for greater-than, equal-to, and less-than conditions
• Operates reliably across an extended industrial temperature range

Comparators Applications

• Digital arithmetic logic units requiring magnitude evaluation
• Address decoding systems comparing binary address lines
• Control logic circuits determining relative value states

Comparators Procurement Notes

Verify part status carefully as this specific NXP variant may be obsolete. Confirm that the 16-SOIC package dimensions match your PCB footprint requirements. Ensure compatibility with your system's voltage levels before integration. Check for updated replacement recommendations from the manufacturer due to potential discontinuation.

Comparators Selection Notes

Select this component when a dedicated 4-bit magnitude comparison function is required without external logic gates. Consider the 16-SOIC package constraints during layout design. Evaluate if the specified temperature range meets your operational environment needs. Verify pinout compatibility if replacing legacy designs.

Comparators Part Context

This device belongs to the HEF4585B series of CMOS integrated circuits. It serves as a fundamental building block for digital systems requiring direct binary value comparison. The component is part of NXP's broader portfolio of logic devices designed for general-purpose digital applications.

Comparators Replacement Considerations

Reference only: CD4585BNSR (Texas Instruments). Verify functional equivalence and package compatibility before substitution.