74VHC86N Equivalent & Substitute Parts

Part Overview

The 74VHC86N is a 4-channel XOR (Exclusive OR) logic IC manufactured by onsemi in a 14-MDIP package. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The 74VHC86N operates across a supply voltage range of 2V to 5.5V with low quiescent current and standard propagation delay characteristics suitable for digital logic applications.

Substiute Parts

74VHC86N

onsemiIn Stock: 105474VHC86N Datasheet

Current PartRFQ

SN74AHC86N

Texas InstrumentsIn Stock: 2593SN74AHC86N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SN74AHC86N qualifies as a direct substitute based on the following critical parameters:

• Logic Function: Both parts implement identical 4-channel XOR logic with 2 inputs per channel
• Electrical Specifications: Supply voltage range (2V ~ 5.5V), quiescent current (2 µA max), output current (8mA), and propagation delay (8.8ns @ 5V, 50pF) are equivalent
• Package Compatibility: Both use 14-DIP through-hole packaging with identical 0.300" (7.62mm) pitch
• Pin Configuration: Identical pin assignments enable direct PCB replacement

The primary distinction is product status: the 74VHC86N is obsolete, while the SN74AHC86N is active production, making it the recommended substitute for new designs.

Parameter Comparison

Engineering Selection Recommendations

The SN74AHC86N is the appropriate substitute for the 74VHC86N based on the following factors:

• Functional Equivalence: Identical logic function, circuit count, and input configuration ensure pin-for-pin compatibility
• Electrical Compatibility: All critical electrical parameters match within specification, including supply voltage, quiescent current, output drive capability, and propagation delay
• Package Compatibility: Identical 14-DIP through-hole package enables direct PCB replacement without layout modifications
• Product Availability: Active production status ensures long-term availability and supply chain reliability
• Compliance: The SN74AHC86N carries ROHS3 compliance certification, meeting modern regulatory requirements

The extended operating temperature range of the SN74AHC86N (-40°C ~ 125°C versus -40°C ~ 85°C) provides additional thermal margin for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the SN74AHC86N replace the 74VHC86N in existing designs?

A: Yes. The SN74AHC86N is a direct pin-for-pin substitute with identical electrical specifications and package configuration. No PCB modifications are required.

Q: Are there differences in input logic levels between these parts?

A: The 74VHC86N specifies input logic levels at 0.5V (low) and 1.5V (high). The SN74AHC86N provides wider input logic level ranges (0.5V ~ 1.65V for low, 1.5V ~ 3.85V for high), which maintains compatibility while offering greater design margin.

Q: What is the significance of the operating temperature difference?

A: The SN74AHC86N operates to 125°C versus 85°C for the 74VHC86N. This extended range is beneficial for applications in elevated ambient or high-power environments, though both parts meet standard industrial temperature requirements.

Q: Are there packaging differences between these parts?

A: Both parts use 14-DIP through-hole packaging with identical 0.300" (7.62mm) pitch. The SN74AHC86N is supplied in tube packaging, while the 74VHC86N was supplied in standard packaging. This does not affect electrical or mechanical compatibility.

Q: Why is the 74VHC86N classified as obsolete?

A: Obsolescence reflects the manufacturer's discontinuation of the part. The SN74AHC86N remains in active production and is the recommended alternative for new designs and production continuity.