74LVC02ABQ-Q100X NOR Gate IC Equivalent & Substitute Parts

Part Overview

The 74LVC02ABQ-Q100X is a 4-channel, 2-input NOR gate logic IC manufactured by Nexperia USA Inc. in a 14-DHVQFN (2.5x3) surface mount package. This component operates across a supply voltage range of 1.2V to 3.6V and is qualified to AEC-Q100 automotive standards. The part is currently in active production status with 1019 units available in new original inventory. Alternative part numbers are necessary when primary stock is unavailable or when design requirements permit substitution based on parametric compatibility.

Key Parameters

Parameter	Specification
Logic Type	NOR Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	1.2V ~ 3.6V
Current - Quiescent (Max)	10 µA
Current - Output High, Low	24mA, 24mA
Input Logic Level - Low	0.12V ~ 0.8V
Input Logic Level - High	1.08V ~ 2V
Max Propagation Delay @ 3.3V, 50pF	4.4ns
Operating Temperature	-40°C ~ 125°C
Package / Case	14-VFQFN Exposed Pad
Mounting Type	Surface Mount
Grade	Automotive
Qualification	AEC-Q100

Substitute Part Grouping Explanation

Substitution of the 74LVC02ABQ-Q100X is determined by strict parametric alignment across the following critical criteria:

Logic Function: Both parts must implement identical 4-channel, 2-input NOR gate functionality.

Electrical Specifications: Supply voltage range (1.2V ~ 3.6V), output drive capability (24mA), input logic thresholds, and propagation delay (4.4ns @ 3.3V, 50pF) must remain within specified limits.

Package Compatibility: Both parts must use the 14-VFQFN Exposed Pad surface mount package with identical footprint dimensions (2.5x3mm).

Environmental & Compliance: Operating temperature range (-40°C ~ 125°C), RoHS3 compliance, and REACH unaffected status must be maintained.

Automotive Qualification: AEC-Q100 qualification is required for automotive-grade applications.

The 74LVC02ABQ,115 meets all these criteria and is classified as a parametric equivalent.

Parameter Comparison

Parameter	74LVC02ABQ-Q100X (Main)	74LVC02ABQ,115 (Substitute)	Compatibility
Manufacturer	Nexperia USA Inc.	Nexperia USA Inc.	Identical
Logic Type	NOR Gate	NOR Gate	Identical
Number of Circuits	4	4	Identical
Number of Inputs	2	2	Identical
Voltage - Supply	1.2V ~ 3.6V	1.2V ~ 3.6V	Identical
Current - Quiescent (Max)	10 µA	40 µA	Substitute higher
Current - Output High, Low	24mA, 24mA	24mA, 24mA	Identical
Input Logic Level - Low	0.12V ~ 0.8V	0.12V ~ 0.8V	Identical
Input Logic Level - High	1.08V ~ 2V	1.08V ~ 2V	Identical
Max Propagation Delay @ 3.3V, 50pF	4.4ns	4.4ns	Identical
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	Identical
Package / Case	14-VFQFN Exposed Pad	14-VFQFN Exposed Pad	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
REACH Status	REACH Unaffected	REACH Unaffected	Identical
Product Status	Active	Active	Identical

Engineering Selection Recommendations

Both the 74LVC02ABQ-Q100X and 74LVC02ABQ,115 are active production parts from Nexperia USA Inc. with full AEC-Q100 automotive qualification and ROHS3 compliance. Selection between these parts should be based on inventory availability and application-specific quiescent current requirements.

The 74LVC02ABQ-Q100X features a maximum quiescent current of 10 µA, making it suitable for power-sensitive applications where standby current consumption is a critical design parameter. The 74LVC02ABQ,115 operates with a maximum quiescent current of 40 µA, which remains acceptable for most automotive and industrial logic applications but may impact battery-powered or ultra-low-power designs.

Both parts maintain identical electrical performance in terms of propagation delay, output drive capability, and input logic thresholds. The 14-VFQFN Exposed Pad package ensures identical PCB footprint compatibility, allowing direct substitution without layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the 74LVC02ABQ,115 be used as a direct replacement for the 74LVC02ABQ-Q100X?

A: Yes. Both parts are parametric equivalents with identical logic function, package, and electrical specifications. The primary difference is quiescent current (40 µA vs. 10 µA). Direct PCB substitution is possible without layout changes.

Q: What is the significance of the quiescent current difference between these parts?

A: Quiescent current represents standby power consumption when the IC is powered but not actively switching. The 74LVC02ABQ-Q100X at 10 µA is preferred for battery-powered or energy-harvesting applications. The 74LVC02ABQ,115 at 40 µA is suitable for standard automotive and industrial applications where standby current is not a limiting factor.

Q: Are both parts qualified for automotive applications?

A: Yes. Both the 74LVC02ABQ-Q100X and 74LVC02ABQ,115 carry AEC-Q100 automotive qualification and are suitable for automotive-grade designs.

Q: Is the package footprint identical between these parts?

A: Yes. Both parts use the 14-VFQFN Exposed Pad package with 2.5x3mm dimensions. No PCB layout modifications are required for substitution.

Q: Do these parts have identical propagation delay specifications?

A: Yes. Both parts specify a maximum propagation delay of 4.4ns at 3.3V with 50pF load, ensuring identical timing performance in logic circuits.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical environmental and regulatory certifications.

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