SN74AS86AD

Overview

The SN74AS86AD is a quad 2-input exclusive-OR gate from the Texas Instruments AS logic family. It operates on a single supply voltage (VCC) ranging from 4.5 V to 5.5 V, with a nominal value of 5 V. The device provides high-speed switching characteristics, featuring maximum propagation delays of 7.5 ns for low-to-high transitions and 7 ns for high-to-low transitions under standard test conditions. It delivers a low-level output current capability of 20 mA and a high-level output current of -2 mA. The component is housed in a 14-pin Small Outline Integrated Circuit (SOIC) package.

Feature Summary

• Executes Boolean exclusive-OR functions using positive logic
• Provides four independent 2-input logic gates within a single integrated circuit
• Capable of functioning as a true/complement element by utilizing one fixed input state

Applications

• Digital parity generation and error detection circuits
• Binary addition operations in arithmetic logic units
• Signal comparison and level discrimination systems

Procurement Notes

Verify that the specific ordering suffix matches the required package type and material finish. Confirm RoHS compliance status and moisture sensitivity level ratings prior to procurement. Ensure the selected variant aligns with the intended operating temperature range and lead finish specifications defined in the manufacturer's documentation.

Selection Notes

Select this component when high-speed logic performance is required compared to standard TTL or ALS families. Verify that the system power supply remains strictly within the 4.5 V to 5.5 V operational limits. Consider the SOIC package dimensions and thermal dissipation requirements during the printed circuit board layout phase.

Part Context

This device belongs to the Texas Instruments 74AS series, which utilizes Advanced Schottky technology to achieve faster switching speeds than conventional logic families. The 'D' suffix indicates the physical packaging format, specifically identifying the plastic Small Outline Integrated Circuit configuration used for surface-mount assembly.

Replacement Considerations

SN74ALS86AD

FAQ

What is the Boolean function performed by the SN74AS86AD?

The device performs the exclusive-OR function, represented mathematically as Y = A ⊕ B or Y = AB + AB.

How does the device operate as a true/complement element?

If one input is held low, the other input appears in true form at the output; if one input is held high, the other input appears inverted at the output.