CD74ACT86M Equivalent & Substitute Parts

Part Overview

The CD74ACT86M 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 Last Time Buy, indicating limited availability from the original manufacturer. The XOR logic function is fundamental in digital circuit design for applications requiring binary comparison, parity generation, and arithmetic operations. Due to the Last Time Buy status, identifying functionally equivalent substitute parts is essential for design continuity and long-term component sourcing.

Substiute Parts

CD74ACT86M

Texas InstrumentsIn Stock: 1338CD74ACT86M Datasheet

Current PartRFQ

CD74ACT86M96

Harris CorporationIn Stock: 3074CD74ACT86M96 Datasheet

MFR RecommendedRFQ

MC74ACT86DG

onsemiIn Stock: 1275MC74ACT86DG Datasheet

MFR RecommendedRFQ

MC74ACT86DR2G

onsemiIn Stock: 3008MC74ACT86DR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CD74ACT86M is determined by strict adherence to the following electrical and mechanical parameters:

Critical Substitution Parameters:

• Logic function: XOR (Exclusive OR) with 4 channels and 2 inputs per channel
• Supply voltage range: 4.5V ~ 5.5V
• Output current capability: 24mA minimum for both high and low states
• Input logic thresholds: Low ≤ 0.8V, High ≥ 2V
• Package: 14-SOIC surface mount form factor
• Base product number: 74ACT series

All substitute parts listed maintain these core electrical specifications and physical package compatibility. Variations in propagation delay and operating temperature range do not affect functional substitutability within the specified supply voltage and logic threshold parameters.

Parameter Comparison

Engineering Selection Recommendations

MC74ACT86DR2G (onsemi) - Recommended Primary Substitute

The MC74ACT86DR2G is the preferred substitute for new designs and long-term sourcing. This part maintains all critical electrical parameters identical to the CD74ACT86M, including supply voltage range, input/output current specifications, and logic thresholds. The MC74ACT86DR2G carries Active product status, ensuring continued availability and manufacturing support. It is ROHS3 compliant and REACH unaffected, meeting modern environmental and regulatory requirements. The tape and reel packaging format supports high-volume production workflows. Propagation delay of 9.5ns at 5V, 50pF is superior to the main part specification, providing improved timing performance. Operating temperature range of -40°C ~ 85°C is suitable for commercial and industrial applications; designs requiring the extended -55°C ~ 125°C range must evaluate application requirements.

MC74ACT86DG (onsemi) - Secondary Substitute

The MC74ACT86DG provides functional equivalence with identical electrical specifications and 14-SOIC package compatibility. This part is ROHS3 compliant and offers improved propagation delay performance. However, Obsolete product status limits long-term availability. The tube packaging format is suitable for lower-volume applications. Operating temperature range of -40°C ~ 85°C applies the same limitation as the primary substitute.

CD74ACT86M96 (Harris Corporation) - Not Recommended

The CD74ACT86M96 maintains electrical parameter compatibility but carries Obsolete product status and RoHS non-compliance. This part does not meet current environmental standards and should not be selected for new designs or applications requiring regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can MC74ACT86DR2G replace CD74ACT86M in existing designs?

A: Yes. Both parts maintain identical supply voltage range (4.5V ~ 5.5V), input logic thresholds (0.8V low, 2V high), output current capability (24mA), and 14-SOIC package dimensions. The MC74ACT86DR2G provides equal or superior electrical performance. If the design operates within the -40°C ~ 85°C temperature range, substitution is direct. Designs requiring operation below -40°C or above 85°C must remain with the CD74ACT86M or equivalent parts supporting the extended -55°C ~ 125°C range.

Q: What is the difference between tape and reel and tube packaging?

A: Tape and reel (TR) packaging is optimized for automated assembly processes and high-volume production, with components wound on continuous tape. Tube packaging is suitable for manual assembly and lower-volume applications, with components contained in a plastic tube. Both formats contain identical components; packaging selection depends on production methodology and volume requirements.

Q: Are all substitute parts ROHS3 compliant?

A: No. MC74ACT86DR2G and MC74ACT86DG are ROHS3 compliant. CD74ACT86M96 is RoHS non-compliant. For applications requiring environmental compliance certification, select only ROHS3 compliant alternatives.

Q: Does the faster propagation delay of MC74ACT86DR2G affect compatibility?

A: No. Faster propagation delay (9.5ns versus 14.6ns) improves timing performance and does not create compatibility issues. Designs specified for 14.6ns propagation delay will operate correctly with the faster 9.5ns specification.

Q: What is the significance of Active versus Obsolete product status?

A: Active status indicates the manufacturer continues production and supports the component. Obsolete status indicates the manufacturer has discontinued production. For new designs and long-term sourcing, Active status parts ensure continued availability and manufacturing support. Obsolete parts should be used only when existing inventory is available and long-term supply is not required.