SN74HC684N

Comparators Overview

The SN74HC684N is an 8-bit magnitude comparator from the Texas Instruments 74HC series. It operates within a wide supply voltage range of 2 V to 6 V and features low power consumption with a maximum ICC of 80 μA. The device provides high-current outputs capable of driving up to 10 LSTTL loads, with typical propagation delays of 22 ns at 5 V. It is housed in a 20-pin PDIP package and supports an operating temperature range of -40°C to +85°C.

Comparators Feature Summary

• Provides active-low outputs indicating equality (A=B) and greater-than (A>B) relationships between two 8-bit binary words.
• Features high-current output drivers suitable for loading multiple LSTTL inputs directly.
• Operates across a broad voltage spectrum from 2 V to 6 V with minimal static power draw.

Comparators Applications

• Digital arithmetic logic units requiring magnitude comparison
• Address decoding systems
• Error detection circuits

Comparators Procurement Notes

Verify the specific suffix against the manufacturer's current datasheet to confirm pinout compatibility and electrical specifications. Ensure the procurement source provides valid traceability documentation. Confirm that the component meets the required environmental standards and packaging format for your assembly process before finalizing orders.

Comparators Selection Notes

Select this component when an 8-bit parallel comparison is required within standard CMOS logic families. It is appropriate for designs needing direct interfacing with LSTTL loads without additional buffering. Consider the 20-pin DIP package constraints for through-hole mounting requirements and verify that the 2V to 6V supply range aligns with the system power architecture.

Comparators Part Context

This part belongs to the SNx4HC684 family of 8-bit magnitude comparators manufactured by Texas Instruments. The HC series denotes high-speed CMOS technology, offering performance comparable to LS TTL but with lower power consumption. The 'N' suffix specifically identifies the 20-lead plastic dual-in-line package variant.

Comparators Replacement Considerations

The SN74HC684NG4 is a lead-free version of this component. Verify functional equivalence and package dimensions before substitution. Check for any updates in the official datasheet regarding recommended replacements or obsolescence notices.