CD74ACT86MDREP Equivalent & Substitute Parts

Part Overview

The CD74ACT86MDREP is a 4-channel XOR (Exclusive OR) logic gate IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This component is classified as an active product and is RoHS3 compliant. The 74ACT86 logic family provides standard digital logic functionality for XOR operations across multiple channels. Substitute parts become necessary when the primary part experiences supply constraints, obsolescence of alternative variants, or when design requirements permit selection from qualified equivalent manufacturers.

Substiute Parts

CD74ACT86MDREP

Texas InstrumentsIn Stock: 785CD74ACT86MDREP Datasheet

Current PartRFQ

CD74ACT86M96

Harris CorporationIn Stock: 3074CD74ACT86M96 Datasheet

Parametric EquivalentRFQ

MC74ACT86DG

onsemiIn Stock: 1275MC74ACT86DG Datasheet

MFR RecommendedRFQ

MC74ACT86DR2G

onsemiIn Stock: 3008MC74ACT86DR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74ACT86MDREP is determined by the following critical parameters:

• Logic Type: XOR (Exclusive OR) with 4 channels and 2 inputs per channel
• Voltage Supply Range: 4.5V ~ 5.5V
• Package: 14-SOIC surface mount configuration
• Input/Output Logic Levels: 0.8V (Low) and 2V (High)
• Current Specifications: 4 µA quiescent, 24mA output drive capability

Parts meeting these core electrical and mechanical specifications are classified as parametric equivalents. Manufacturer-recommended substitutes may include variants with different product status or compliance certifications, provided they maintain functional compatibility within the specified parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (CD74ACT86MDREP): Texas Instruments CD74ACT86MDREP is the active product with full RoHS3 compliance, extended operating temperature range (-55°C ~ 125°C), and Tape & Reel packaging suitable for automated assembly. This part is recommended for new designs and applications requiring long-term supply stability.

First Alternative (MC74ACT86DR2G): onsemi MC74ACT86DR2G is an active product with RoHS3 compliance and Tape & Reel packaging. This part offers improved propagation delay performance (9.5ns versus 14.6ns) but operates within a narrower temperature range (-40°C ~ 85°C). Selection is appropriate when the reduced temperature range meets application requirements and faster switching performance is beneficial.

Secondary Alternative (MC74ACT86DG): onsemi MC74ACT86DG is obsolete but remains available in inventory. This part is RoHS3 compliant with improved propagation delay (9.5ns) but has a narrower operating temperature range (-40°C ~ 85°C) and is packaged in Tube format. Use only when supply of active alternatives is unavailable and application temperature requirements permit.

Not Recommended (CD74ACT86M96): Harris Corporation CD74ACT86M96 is obsolete and RoHS non-compliant. This part does not meet current environmental compliance requirements and should not be selected for new designs.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT86DR2G replace CD74ACT86MDREP in all applications?

A: MC74ACT86DR2G is electrically compatible within the specified voltage, current, and logic level parameters. However, the operating temperature range differs: MC74ACT86DR2G operates from -40°C ~ 85°C while CD74ACT86MDREP operates from -55°C ~ 125°C. Substitution is valid only if the application does not require operation below -40°C or above 85°C.

Q: What is the significance of the propagation delay difference between CD74ACT86MDREP (14.6ns) and MC74ACT86DR2G (9.5ns)?

A: Both parts meet the 14-SOIC XOR logic specification. The faster propagation delay of MC74ACT86DR2G (9.5ns) indicates improved switching speed. This difference is relevant only in timing-critical applications where signal propagation delay directly affects system performance. For standard logic applications, both parts are functionally equivalent.

Q: Why is CD74ACT86M96 listed as a substitute if it is obsolete and RoHS non-compliant?

A: CD74ACT86M96 meets the core electrical and mechanical parameters for XOR logic functionality. However, obsolete status and RoHS non-compliance make it unsuitable for new designs. This part is documented for reference only in legacy system maintenance scenarios.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel (TR), Tube, and Bulk packaging formats do not affect the electrical characteristics of the IC. Packaging selection is determined by assembly process requirements and inventory management practices. All three formats contain identical die and lead configurations.

Q: Are all substitute parts pin-compatible with CD74ACT86MDREP?

A: Yes. All listed substitutes use the 14-SOIC package with identical pin assignments and functional pinout. Direct board-level substitution is possible without circuit modification.