74HCT85DB,112

Comparators Overview

The Nexperia 74HCT85DB,112 is a 4-bit magnitude comparator in a 16-SSOP package. It compares two 4-bit binary or BCD codes to determine relative magnitude, providing active high outputs for A>B, A=B, and A<B conditions. The device operates with a supply voltage range of 4.5V to 5.5V and features TTL input levels compatible with standard logic families. It supports expansion for larger word lengths through cascading inputs and outputs.

Comparators Feature Summary

• Performs 4-bit magnitude comparison between two binary or BCD inputs
• Provides three distinct active high output signals indicating greater than, equal to, or less than relationships
• Supports cascading for expanded bit-width comparisons via dedicated expander inputs

Comparators Applications

• Process controllers requiring data value comparison
• Servo-motor control systems
• Digital logic circuits needing magnitude determination

Comparators Procurement Notes

Verify the specific suffix '112' corresponds to the 16-SSOP packaging configuration as documented in official Nexperia datasheets. Confirm that the TTL input level requirements align with your system's logic voltage standards before procurement. Ensure the operating temperature range meets your environmental specifications.

Comparators Selection Notes

Select this component when a 4-bit magnitude comparison function is required with TTL-compatible inputs. The 16-SSOP package is suitable for surface-mount applications. Consider the 74HC85 variant if CMOS input levels are preferred over TTL levels, noting potential differences in noise immunity and power consumption characteristics.

Comparators Part Context

This part belongs to the Nexperia 74HCT series of high-speed CMOS logic devices. The 74HCT family is designed to be pin-compatible with the older 74LS series while offering CMOS performance benefits. The 74HCT85 specifically implements the magnitude comparator function within this standardized logic family framework.

Comparators Replacement Considerations

The 74HC85D is a related comparator with CMOS input levels. Verify input compatibility when substituting, as HCT inputs require different voltage thresholds than HC inputs. Other manufacturers producing JEDEC-compliant 74HCT85 equivalents may serve as functional replacements if pinout and electrical characteristics match.