74HCT688DB,112

Comparators Overview

The NXP USA Inc. 74HCT688DB,112 is an 8-bit magnitude comparator belonging to the HCT series of logic devices. It features inverted outputs and operates within a supply voltage range of 2 V to 6 V. The component exhibits propagation delays of 170 ns, 34 ns, and 29 ns under specified conditions. It draws a maximum power supply current of 8 µA and functions reliably across an operating temperature range from -40°C to +125°C. The device is housed in a 20-pin SSOP package with a width of 5.30 mm.

Comparators Feature Summary

• Provides 8-bit identity comparison functionality with active low outputs
• Compatible with standard HCT logic family input levels
• Designed for surface-mount installation in compact electronic assemblies

Comparators Applications

• Digital data comparison circuits
• Address decoding systems
• Magnitude verification in control logic

Comparators Procurement Notes

Verify availability status as this specific part number may be discontinued or subject to limited distribution channels. Confirm that the 20-SSOP package dimensions match your PCB footprint requirements. Ensure that the HCT logic level compatibility aligns with your system's voltage interfaces. Check for any obsolescence notifications from NXP Semiconductors before finalizing procurement plans.

Comparators Selection Notes

Select this component when an 8-bit magnitude comparator with inverted outputs is required within the HCT logic family. Consider the 20-SSOP package size for space-constrained designs. Verify that the operating temperature range meets your environmental specifications. Ensure compatibility with the 2 V to 6 V supply voltage range of your application circuit.

Comparators Part Context

This device is part of the broader 74HCT688 series of 8-bit magnitude comparators manufactured by NXP Semiconductors. The series includes various packaging options such as TSSOP and SSOP variants. These components are designed for general-purpose digital logic applications requiring precise binary value comparison. The HCT series ensures compatibility with standard TTL logic levels while offering CMOS performance characteristics.

Comparators Replacement Considerations

NXP has issued discontinuation notifications for related types. Reference only information suggests checking for known replacement products from NXP. Verify if alternative packages like 74HC688PW-T offer functional equivalence. Consult official NXP documentation for confirmed substitute part numbers.