M74HC688RM13TR

Comparators Overview

The M74HC688RM13TR is an 8-bit magnitude comparator from the STMicroelectronics M74HC series, housed in a 20-SOIC package. It features active low outputs indicating equality (A=B) between two 8-bit binary words. The device operates within a supply voltage range of 2 V to 6 V and supports surface mount installation. It is qualified under AEC-Q100 standards for automotive applications and functions reliably across an extended temperature range.

Comparators Feature Summary

• Performs parallel comparison of two 8-bit binary numbers
• Provides active low output signal when input values are equal
• Compatible with standard CMOS logic levels

Comparators Applications

• Automotive electronic control units requiring data validation
• Industrial systems performing address or value matching
• Digital circuits comparing sensor data against reference thresholds

Comparators Procurement Notes

Verify the specific suffix RM13TR corresponds to the SOIC-20 tape-and-reel packaging configuration. Confirm AEC-Q100 qualification status if automotive reliability is required. Ensure the active low output polarity matches the system design requirements before integration.

Comparators Selection Notes

Select this component when an 8-bit equality check is necessary within a HC logic family environment. Consider the 2V to 6V operating range for compatibility with varying system voltages. Evaluate the propagation delay specifications against the maximum clock speed of the target digital interface.

Comparators Part Context

This part belongs to the M74HC688 family of 8-bit magnitude comparators manufactured by STMicroelectronics. It serves as a digital decision-making element in complex logic circuits, specifically designed to detect identity between two multi-bit inputs. The HC series ensures low power consumption while maintaining high-speed performance suitable for modern embedded applications.

Comparators Replacement Considerations

DigiKey lists this product as obsolete with no direct substitutes provided. Verify availability of alternative 8-bit comparators from other manufacturers if production continuity is critical.