74LVC02AD-Q100J NOR Gate IC Equivalent & Substitute Parts

Part Overview

The 74LVC02AD-Q100J is a 4-channel 2-input NOR gate logic IC manufactured by Nexperia USA Inc. in a 14-SOIC surface mount package. This device is classified as an active product with AEC-Q100 automotive qualification. Substitute parts are identified based on matching logic function, circuit configuration, and electrical operating parameters within the 74LVC and 74LCX logic families.

Key Parameters

Parameter	Value
Logic Type	NOR Gate
Number of Circuits	4
Number of Inputs	2
Voltage Supply Range	1.2V ~ 3.6V
Package Type	14-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 125°C
Grade	Automotive (AEC-Q100)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the 74LVC02AD-Q100J are grouped into two categories based on parametric equivalence:

Parametric Equivalent: Parts that maintain identical or overlapping electrical specifications and can serve as direct functional replacements.

Similar Parts: Parts that share the same logic function and package but operate within different voltage or temperature ranges, or have different product status classifications.

Substitution eligibility is determined by the following criteria:

Identical logic function (4-channel 2-input NOR gate)
Compatible package type (14-SOIC)
Overlapping supply voltage ranges
Surface mount configuration
Compliance with RoHS3 and REACH requirements

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Voltage Supply	Current Quiescent (Max)	Propagation Delay @ 3.3V, 50pF	Operating Temperature	Product Status	Packaging
74LVC02AD-Q100J	Nexperia USA Inc.	74LVC	1.2V ~ 3.6V	10 µA	4.4ns	-40°C ~ 125°C	Active	Tape & Reel (TR)
74LVC02AD,118	NXP Semiconductors	74LVC	Not specified	Not specified	Not specified	Not specified	Active	Bulk
74LCX02M	Fairchild Semiconductor	74LCX	2V ~ 3.6V	10 µA	5.2ns	-40°C ~ 85°C	Active	Bulk
MC74LCX02DG	onsemi	74LCX	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	Obsolete	Tube
MC74LCX02DR2G	onsemi	74LCX	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 85°C	Active	Tape & Reel (TR)
SN74LVC02AD	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	4.2ns	-40°C ~ 125°C	Active	Tube
SN74LVC02ADR	Texas Instruments	74LVC	1.65V ~ 3.6V	1 µA	4.2ns	-40°C ~ 125°C	Active	Tape & Reel (TR)
SN74LVC02AQDRG4Q1	Texas Instruments	74LVC	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 125°C	Active	Tape & Reel (TR)
SN74LVC02AQDRQ1	Texas Instruments	74LVC	2V ~ 3.6V	10 µA	5.5ns	-40°C ~ 125°C	Active	Tape & Reel (TR)

Engineering Selection Recommendations

For Direct Replacement (Automotive-Qualified Applications):

SN74LVC02AQDRQ1 and SN74LVC02AQDRG4Q1 are automotive-grade alternatives with AEC-Q100 qualification matching the original part's grade specification. Both maintain the -40°C ~ 125°C operating temperature range and are available in Tape & Reel packaging.

For General-Purpose Applications:

SN74LVC02ADR (Texas Instruments) offers superior electrical performance with lower quiescent current (1 µA vs. 10 µA) and faster propagation delay (4.2ns vs. 4.4ns) while maintaining the full -40°C ~ 125°C temperature range. This part is available in Tape & Reel packaging and is active product status.

For Cost-Optimized Sourcing:

MC74LCX02DR2G (onsemi) provides functional equivalence with active product status and Tape & Reel availability. This part operates within the 2V ~ 3.6V range and is suitable for applications not requiring the extended lower voltage capability of the original part.

Parts to Avoid:

MC74LCX02DG carries obsolete product status and should not be selected for new designs despite functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can I substitute 74LCX02M for 74LVC02AD-Q100J?

A: 74LCX02M shares the same logic function and package but has a narrower supply voltage range (2V ~ 3.6V vs. 1.2V ~ 3.6V) and lower maximum operating temperature (-40°C ~ 85°C vs. -40°C ~ 125°C). Substitution is valid only if your application operates within these narrower specifications.

Q: What is the difference between Tape & Reel and Bulk packaging?

A: Tape & Reel packaging is suitable for automated assembly processes and high-volume production. Bulk packaging is typically used for manual assembly or lower-volume applications. The electrical performance of the IC is identical; packaging affects handling and assembly methodology only.

Q: Why is MC74LCX02DG listed as obsolete?

A: Obsolete product status indicates the manufacturer has discontinued production. While functional equivalents exist, this part should not be selected for new designs due to potential supply chain unavailability.

Q: Are all substitute parts RoHS3 compliant?

A: All listed substitute parts are RoHS3 compliant and REACH unaffected, matching the environmental compliance of the original 74LVC02AD-Q100J.

Q: Which substitute offers the best performance?

A: SN74LVC02ADR and SN74LVC02AD (Texas Instruments) deliver the fastest propagation delay (4.2ns) and lowest quiescent current (1 µA) while maintaining the full -40°C ~ 125°C operating temperature range. Selection depends on packaging preference: SN74LVC02ADR is available in Tape & Reel; SN74LVC02AD is available in Tube.

Q: Can I use these substitutes in automotive applications?

A: Only SN74LVC02AQDRQ1 and SN74LVC02AQDRG4Q1 carry AEC-Q100 automotive qualification matching the original part. Other substitutes are suitable for general-purpose applications only unless your specific automotive application does not require formal qualification.

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