74VCX86MX XOR Logic IC - Equivalent & Substitute Parts

Part Overview

The 74VCX86MX is a 4-channel, 2-input XOR (Exclusive OR) logic integrated circuit manufactured by onsemi in a 14-SOIC surface mount package. This device operates across a supply voltage range of 1.2V to 3.6V and is designed for low-power digital logic applications requiring XOR gate functionality.

The 74VCX86MX is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure continued availability for new designs, production continuity, and long-term system support where original components are no longer manufactured or stocked.

Substiute Parts

74VCX86MX

onsemiIn Stock: 334074VCX86MX Datasheet

Current PartRFQ

74LVC86AD,118

Nexperia USA Inc.In Stock: 314874LVC86AD,118 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74VCX86MX is determined by the following critical parameters:

• Logic Function: XOR gate with 4 channels and 2 inputs per channel
• Supply Voltage Compatibility: Operating range must encompass or match 1.2V ~ 3.6V
• Output Drive Capability: Output current ratings of 24mA (high and low) must be met or exceeded
• Package Compatibility: 14-SOIC surface mount package with identical pin configuration
• Temperature Range: Operating temperature must support the application requirements

The 74LVC86AD,118 from Nexperia USA Inc. meets all substitution criteria. Both devices share identical logic function, package form factor, and compatible electrical specifications within the defined supply voltage and output current parameters.

Parameter Comparison

Engineering Selection Recommendations

The 74LVC86AD,118 is a direct functional substitute for the 74VCX86MX. Both devices provide identical XOR logic functionality with 4 channels and 2 inputs per channel in the same 14-SOIC package.

The 74LVC86AD,118 offers the following advantages:

• Active Product Status: Currently manufactured and supported by Nexperia USA Inc., ensuring long-term availability and supply chain continuity
• Extended Temperature Range: Operating temperature range of -40°C to 125°C exceeds the 74VCX86MX specification, providing broader application flexibility
• RoHS3 Compliance: Meets current environmental and regulatory requirements
• Identical Electrical Performance: Supply voltage, output drive capability, and logic levels are compatible with the original design

The 74LVC86AD,118 is suitable for direct replacement in applications currently using the 74VCX86MX, with no circuit modifications required.

Frequently Asked Questions (FAQ)

Q: Can the 74LVC86AD,118 be used as a direct replacement for the 74VCX86MX?

A: Yes. Both devices are 4-channel, 2-input XOR logic ICs in 14-SOIC packages with identical pin configurations and compatible electrical specifications. No circuit modifications are required for substitution.

Q: Are there differences in quiescent current between these parts?

A: The 74LVC86AD,118 has a maximum quiescent current of 40 µA compared to 20 µA for the 74VCX86MX. This difference is within acceptable limits for most applications and does not affect functional compatibility.

Q: What is the difference in propagation delay?

A: The 74VCX86MX has a maximum propagation delay of 3ns at 3.3V with 30pF load, while the 74LVC86AD,118 specifies 5ns at 3.3V with 50pF load. The 74LVC86AD,118 operates with a higher capacitive load specification, which is acceptable for most digital logic applications.

Q: Are the input logic level thresholds compatible?

A: Yes. The input logic level specifications overlap across the supply voltage range. The 74LVC86AD,118 accepts a wider range of input levels, making it compatible with the 74VCX86MX in existing circuit designs.

Q: Does the extended temperature range of the 74LVC86AD,118 affect compatibility?

A: No. The extended operating temperature range of -40°C to 125°C is a superset of the 74VCX86MX range (-40°C to 85°C). This provides additional design margin and is fully compatible with applications designed for the original part.

Q: What packaging options are available for the 74LVC86AD,118?

A: The 74LVC86AD,118 is supplied in Tape & Reel (TR) packaging in the 14-SO form factor, which is mechanically and electrically identical to the 14-SOIC package of the 74VCX86MX.