SN74LS682DWR

Overview

The SN74LS682DWR is an active, production-stage octal binary or BCD magnitude comparator manufactured by Texas Instruments. It operates within a supply voltage range of 4.85 V to 5.25 V and supports logic functions for A=B and A>B comparisons. The device features totem-pole outputs with propagation delays of 25 ns and 30 ns. It draws a maximum supply current of 70 mA and functions reliably between 0°C and +70°C. The component is housed in a 20-SOIC surface-mount package.

Feature Summary

• Performs octal binary or BCD magnitude comparison operations
• Provides dedicated output signals for equality (A=B) and greater-than (A>B) conditions
• Utilizes totem-pole output structure for digital signal interfacing

Applications

• Digital data comparison circuits
• Address decoding systems
• Error detection logic in computing hardware

Procurement Notes

Verify the specific suffix 'DWR' confirms the SOIC-20 package and tape-and-reel packaging format. Confirm the manufacturer designation as Texas Instruments to ensure compatibility with existing design specifications. Check RoHS compliance status against current regulatory requirements for your target market. Ensure the operating temperature range meets your environmental constraints.

Selection Notes

Select this component when an 8-bit magnitude comparison function is required within standard TTL voltage limits. Consider the 20-SOIC package for surface-mount assembly needs. Evaluate the 70 mA supply current against power budget constraints. Verify that the 0°C to +70°C industrial temperature range aligns with operational environments.

Part Context

This part belongs to the Texas Instruments 74LS series of logic comparators. It serves as a specialized integrated circuit for digital logic applications requiring precise magnitude evaluation. The DWR suffix indicates a specific reel-packaged variant of the standard SN74LS682DW component, optimized for automated manufacturing processes.

Replacement Considerations

The SN74HC682DWR is a documented alternative offering similar functionality with different electrical characteristics. Verify voltage compatibility and speed requirements before substitution.