SN74AHCT86D XOR Logic IC Equivalent & Substitute Parts

Part Overview

The SN74AHCT86D is a 4-channel, 2-input XOR (Exclusive OR) logic integrated circuit manufactured by Texas Instruments in a 14-SOIC surface mount package. This part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74AHCT86 logic family provides standard XOR gate functionality with 4.5V to 5.5V supply voltage operation and is widely used in digital logic applications requiring exclusive OR operations.

Substiute Parts

SN74AHCT86D

Texas InstrumentsIn Stock: 3363SN74AHCT86D Datasheet

Current PartRFQ

SN74AHCT86DR

Texas InstrumentsIn Stock: 3889SN74AHCT86DR Datasheet

DirectRFQ

74AHCT86D,118

Nexperia USA Inc.In Stock: 92574AHCT86D,118 Datasheet

UpgradeRFQ

74AHCT86D-Q100J

Nexperia USA Inc.In Stock: 100974AHCT86D-Q100J Datasheet

MFR RecommendedRFQ

74AHCT86S14-13

Diodes IncorporatedIn Stock: 113974AHCT86S14-13 Datasheet

MFR RecommendedRFQ

MC74VHCT86ADR2G

onsemiIn Stock: 2918MC74VHCT86ADR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SN74AHCT86D is determined by the following critical parameters:

• Logic Type: XOR (Exclusive OR) with 4 channels and 2 inputs per channel
• Supply Voltage Range: 4.5V ~ 5.5V (minimum requirement)
• Output Drive Capability: 8mA high and low
• Propagation Delay: 8.8ns @ 5V, 50pF (timing critical applications)
• Package: 14-SOIC surface mount form factor
• RoHS3 Compliance and MSL Level 1

Substitute parts are grouped into three categories based on manufacturer and product status:

Direct Manufacturer Substitute (Same Manufacturer): SN74AHCT86DR from Texas Instruments maintains identical electrical specifications and packaging, with the primary difference being packaging format (Cut Tape & Digi-Reel vs. Tube).

Upgrade Substitutes (Extended Temperature Range): 74AHCT86D,118 from Nexperia USA Inc. and 74AHCT86S14-13 from Diodes Incorporated extend the operating temperature range to -40°C ~ 125°C, providing broader thermal performance while maintaining core XOR functionality.

Alternative Logic Family Substitute (Enhanced Supply Voltage Range): MC74VHCT86ADR2G from onsemi operates across 2V ~ 5.5V supply voltage, offering wider voltage compatibility while maintaining the same logic function and timing characteristics.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement with Active Product Status: SN74AHCT86DR from Texas Instruments is the primary substitute, offering identical electrical and thermal specifications to the discontinued SN74AHCT86D. Both parts maintain the same -40°C ~ 85°C operating temperature range and 8.8ns propagation delay. The difference is packaging format: SN74AHCT86DR is supplied in Cut Tape & Digi-Reel format rather than Tube. This part is currently active and maintains full ROHS3 compliance.

For Extended Temperature Range Applications: 74AHCT86D,118 from Nexperia USA Inc. and 74AHCT86S14-13 from Diodes Incorporated both extend the operating temperature range to -40°C ~ 125°C. These parts are suitable for applications requiring broader thermal performance. The 74AHCT86D,118 maintains the 8.8ns propagation delay, while 74AHCT86S14-13 has a slightly longer 10ns propagation delay and higher quiescent current (20 µA vs. 2 µA). Both are ROHS3 compliant and currently active.

For Wider Supply Voltage Range: MC74VHCT86ADR2G from onsemi operates across 2V ~ 5.5V supply voltage, compared to the standard 4.5V ~ 5.5V range. This part is suitable for applications requiring lower voltage operation while maintaining XOR logic functionality. It maintains 8.8ns propagation delay and 2 µA quiescent current. Operating temperature range is -55°C ~ 85°C. This part is ROHS3 compliant and currently active.

Frequently Asked Questions (FAQ)

Q: Can SN74AHCT86DR be used as a direct replacement for SN74AHCT86D? A: Yes. SN74AHCT86DR is manufactured by the same company (Texas Instruments) and maintains identical electrical specifications, operating temperature range (-40°C ~ 85°C), propagation delay (8.8ns @ 5V, 50pF), and 14-SOIC package. The only difference is the packaging format (Cut Tape & Digi-Reel vs. Tube). Both are ROHS3 compliant with MSL Level 1.

Q: What is the difference between the 74AHCT86 and 74VHCT86 logic families? A: The primary difference is supply voltage range. The 74AHCT86 operates at 4.5V ~ 5.5V, while the 74VHCT86 (MC74VHCT86ADR2G) operates at 2V ~ 5.5V. Both maintain the same XOR logic function, 4-channel configuration, and 8.8ns propagation delay at 5V. The 74VHCT86 is suitable for applications requiring lower voltage operation.

Q: Why does 74AHCT86S14-13 have a 10ns propagation delay instead of 8.8ns? A: The 74AHCT86S14-13 from Diodes Incorporated has a slightly longer propagation delay (10ns @ 5V, 50pF) compared to other substitutes (8.8ns). This is within acceptable tolerance for most XOR logic applications but should be considered in timing-critical designs. The part also has higher quiescent current (20 µA vs. 2 µA).

Q: Are all substitute parts available in the same 14-SOIC package? A: Yes. All substitute parts listed (SN74AHCT86DR, 74AHCT86D,118, 74AHCT86S14-13, and MC74VHCT86ADR2G) are available in the 14-SOIC (0.154", 3.90mm Width) surface mount package, ensuring mechanical compatibility with the original SN74AHCT86D.

Q: Which substitute part has the widest operating temperature range? A: The 74AHCT86D,118 and 74AHCT86S14-13 both extend the operating temperature range to -40°C ~ 125°C, compared to the original -40°C ~ 85°C. The MC74VHCT86ADR2G operates from -55°C ~ 85°C, providing lower temperature capability but not higher temperature operation.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All substitute parts listed are ROHS3 compliant with Moisture Sensitivity Level (MSL) 1 (Unlimited), matching the compliance profile of the original SN74AHCT86D.