74LVC02ADTR2G Equivalent & Substitute Parts

Part Overview

The 74LVC02ADTR2G is a NOR Gate IC featuring 4 channels with 2 inputs per channel, packaged in a 14-TSSOP surface mount configuration. Manufactured by onsemi, this component operates across a supply voltage range of 1.2V to 3.6V and is classified as an obsolete product. Due to its obsolete status, identifying functionally equivalent substitute parts is essential for design continuity and procurement planning. The 74LVC02ADTR2G remains available in inventory but alternative active-status components with compatible electrical and mechanical specifications are available for new designs.

Substiute Parts

74LVC02ADTR2G

onsemiIn Stock: 101674LVC02ADTR2G Datasheet

Current PartRFQ

MC74LCX02DTR2G

onsemiIn Stock: 4050MC74LCX02DTR2G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74LVC02ADTR2G is determined by the following critical parameters:

Functional Equivalence: Logic type (NOR Gate), number of circuits (4), and number of inputs (2) must remain identical.

Electrical Compatibility: Supply voltage range, output current capability, propagation delay, and input logic levels must support the application requirements. The 74LVC02ADTR2G operates at 1.2V to 3.6V; substitute parts must support the minimum voltage required by the design.

Mechanical Compatibility: Package type (14-TSSOP) and mounting type (Surface Mount) must match to ensure PCB layout compatibility without redesign.

Compliance & Status: RoHS3 compliance and moisture sensitivity level (MSL 1) are maintained across substitute parts to ensure regulatory and environmental compatibility.

The MC74LCX02DTR2G qualifies as a direct substitute based on these criteria, with the following considerations: it operates at 2V to 3.6V (narrower range than the original), features lower quiescent current (10 µA vs. 40 µA), and maintains identical propagation delay and package specifications. The MC74LCX02DTR2G is classified as an active product, making it suitable for new designs and long-term availability.

Parameter Comparison

Engineering Selection Recommendations

For Designs Operating at 2V or Higher: The MC74LCX02DTR2G is the preferred substitute. It maintains identical functional specifications, package compatibility, and propagation delay while offering improved quiescent current performance (10 µA vs. 40 µA). Active product status ensures long-term availability and supply chain stability.

For Designs Requiring Sub-2V Operation: The 74LVC02ADTR2G must be retained, as the MC74LCX02DTR2G supply voltage minimum is 2V. No substitute from the provided list supports operation below 2V.

For Temperature-Critical Applications: The 74LVC02ADTR2G supports operation to 125°C, while the MC74LCX02DTR2G is rated to 85°C. Design requirements exceeding 85°C necessitate retention of the original part.

Compliance Assurance: Both parts maintain ROHS3 compliance and MSL 1 rating, ensuring regulatory and environmental compatibility across substitution.

Frequently Asked Questions (FAQ)

Q: Can the MC74LCX02DTR2G replace the 74LVC02ADTR2G in all applications?

A: Substitution is valid only if the design operates at 2V or higher supply voltage and does not require operation above 85°C. The MC74LCX02DTR2G is electrically and mechanically compatible within these constraints. Designs requiring sub-2V operation or temperatures exceeding 85°C must use the original 74LVC02ADTR2G.

Q: What is the primary advantage of the MC74LCX02DTR2G substitute?

A: The MC74LCX02DTR2G offers significantly lower quiescent current consumption (10 µA vs. 40 µA), reducing power dissipation in battery-powered or low-power applications. It maintains identical propagation delay and output current specifications while being an active product with assured long-term availability.

Q: Are there package or pinout differences between these parts?

A: No. Both parts use the 14-TSSOP package with identical pinout and mechanical dimensions (0.173" width, 4.40mm). PCB layout and footprint remain unchanged during substitution.

Q: Why is the 74LVC02ADTR2G classified as obsolete?

A: Obsolete status indicates the manufacturer has discontinued active production. However, inventory remains available. For new designs, the active MC74LCX02DTR2G is recommended to ensure long-term supply chain continuity.

Q: What compliance certifications apply to both parts?

A: Both the 74LVC02ADTR2G and MC74LCX02DTR2G are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity level) ratings, ensuring regulatory compliance and environmental suitability.