SN74HC684DWR

Comparators Overview

The SN74HC684DWR is an octal magnitude comparator manufactured by Texas Instruments in the HC logic series. It features a 20-SOIC package and operates within a supply voltage range of 2 V to 6 V. The device provides active low outputs for A=B, A>B, and A<B comparisons with propagation delays of 55 ns at 4.5 V and 47 ns at 6 V. It functions across a temperature range of -40°C to +85°C.

Comparators Feature Summary

• Performs 8-bit magnitude comparison between two binary words
• Provides three distinct active-low status outputs for equality and inequality conditions
• Compatible with standard CMOS logic families via wide voltage operation

Comparators Applications

• Digital data validation systems
• Address decoding circuits
• Comparator-based control logic

Comparators Procurement Notes

Verify the specific suffix DWR indicates tape-and-reel packaging when ordering. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure the operating environment remains within the specified -40°C to +85°C thermal limits for reliable performance.

Comparators Selection Notes

Select this component for applications requiring precise 8-bit digital comparison with low output impedance. The HC series offers compatibility with standard 5V logic levels while supporting lower voltage operations down to 2V. Consider the SOIC-20 footprint for PCB layout constraints.

Comparators Part Context

This part belongs to the SN74HC684 family of octal comparators. It serves as a digital logic solution for determining relationships between two multi-bit binary inputs. The device is designed for general-purpose digital systems requiring reliable magnitude detection without complex external circuitry.

Comparators Replacement Considerations

Check for SN74HC684DW (tube) if reel packaging is not required. Verify pinout compatibility with other octal comparators from different manufacturers before substitution.