SN74LVC02AQDRQ1 Equivalent & Substitute Parts

Part Overview

The SN74LVC02AQDRQ1 is a 4-channel 2-input NOR gate logic IC manufactured by Texas Instruments in a 14-SOIC surface mount package. This automotive-grade component operates across a 2V to 3.6V supply voltage range and is qualified to AEC-Q100 standards. The part is currently in active production status with 3295 units in stock. Substitute parts are necessary to address supply chain flexibility, alternative sourcing options, and packaging preferences while maintaining functional and electrical equivalence.

Key Parameters

Parameter	Value
Logic Type	NOR Gate
Number of Circuits	4
Number of Inputs	2
Voltage - Supply	2V ~ 3.6V
Current - Quiescent (Max)	10 µA
Current - Output High, Low	24mA, 24mA
Input Logic Level - Low	0.8V
Input Logic Level - High	2V
Max Propagation Delay @ 3.3V, 50pF	5.5ns
Operating Temperature	-40°C ~ 125°C
Grade	Automotive
Qualification	AEC-Q100
Package / Case	14-SOIC (0.154", 3.90mm Width)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict equivalence across the following critical parameters: logic type (NOR gate), circuit count (4 channels), input count (2 inputs per channel), supply voltage range (2V ~ 3.6V), output current capability (24mA), propagation delay (5.5ns @ 3.3V, 50pF), package type (14-SOIC), and compliance certifications (RoHS3, MSL 1).

Substitute parts are grouped into two categories:

Parametric Equivalents: Parts that maintain identical electrical specifications and automotive qualification across all critical parameters.

Manufacturer Recommended Alternatives: Parts that share the base logic function and core electrical characteristics but may differ in product status, packaging format, or operating temperature range.

Parameter Comparison

Parameter	SN74LVC02AQDRQ1 (TI)	SN74LVC02AQDRG4Q1 (TI)	74LVC02AD,118 (NXP)	MC74LCX02DG (onsemi)	MC74LCX02DR2G (onsemi)
Manufacturer	Texas Instruments	Texas Instruments	NXP Semiconductors	onsemi	onsemi
Logic Type	NOR Gate	NOR Gate	NOR Gate	NOR Gate	NOR Gate
Number of Circuits	4	4	—	4	4
Number of Inputs	2	2	—	2	2
Voltage - Supply	2V ~ 3.6V	2V ~ 3.6V	—	2V ~ 3.6V	2V ~ 3.6V
Current - Quiescent (Max)	10 µA	10 µA	—	10 µA	10 µA
Current - Output High, Low	24mA, 24mA	24mA, 24mA	—	24mA, 24mA	24mA, 24mA
Input Logic Level - Low	0.8V	0.8V	—	0.7V ~ 0.8V	0.7V ~ 0.8V
Input Logic Level - High	2V	2V	—	1.7V ~ 2V	1.7V ~ 2V
Max Propagation Delay @ 3.3V, 50pF	5.5ns	5.5ns	—	5.5ns	5.5ns
Operating Temperature	-40°C ~ 125°C	-40°C ~ 125°C	—	-40°C ~ 85°C	-40°C ~ 85°C
Grade	Automotive	Automotive	—	—	—
Qualification	AEC-Q100	AEC-Q100	—	—	—
Package / Case	14-SOIC	14-SOIC	—	14-SOIC	14-SOIC
Packaging Format	Tape & Reel (TR)	Tape & Reel (TR)	Bulk	Tube	Tape & Reel (TR)
Product Status	Active	Active	Active	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	—	ROHS3 Compliant	ROHS3 Compliant
Inventory (Pcs)	3295	3227	151347	1682	2700

Engineering Selection Recommendations

SN74LVC02AQDRG4Q1 (Texas Instruments): This part is a parametric equivalent to the SN74LVC02AQDRQ1, maintaining identical electrical specifications, automotive grade qualification, and AEC-Q100 certification. Both parts operate across the full -40°C to 125°C temperature range and are supplied in Tape & Reel packaging. Selection between these two Texas Instruments variants depends on supply availability and internal part numbering conventions.

74LVC02AD,118 (NXP Semiconductors): This NXP part shares the base 74LVC02 logic function and is supplied in bulk packaging. Limited parametric data is provided in the input specification. This part is suitable for applications where packaging format flexibility is acceptable and NXP sourcing is preferred.

MC74LCX02DG (onsemi): This onsemi part maintains electrical equivalence across supply voltage, output current, propagation delay, and package type. However, the product status is listed as obsolete, and the operating temperature range is limited to -40°C to 85°C, which is narrower than the main part. This part is supplied in tube packaging. Selection of this part should account for its discontinued status and reduced temperature range.

MC74LCX02DR2G (onsemi): This onsemi part is functionally equivalent to the SN74LVC02AQDRQ1 across all critical electrical parameters and is currently in active production. The operating temperature range is -40°C to 85°C, which is narrower than the automotive-grade main part. This part is supplied in Tape & Reel packaging and is suitable for applications where the reduced temperature range is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the SN74LVC02AQDRG4Q1 be used as a direct replacement for the SN74LVC02AQDRQ1?

A: Yes. Both parts are manufactured by Texas Instruments, share identical electrical specifications, maintain automotive-grade qualification with AEC-Q100 certification, and are packaged in 14-SOIC with Tape & Reel format. Selection depends on supply chain availability.

Q: What is the key difference between the Texas Instruments and onsemi substitute parts?

A: The Texas Instruments parts (SN74LVC02AQDRQ1 and SN74LVC02AQDRG4Q1) operate across -40°C to 125°C with automotive-grade qualification. The onsemi parts (MC74LCX02DG and MC74LCX02DR2G) operate across -40°C to 85°C without automotive-grade designation. Applications requiring the full temperature range or automotive qualification must use the Texas Instruments variants.

Q: Is the MC74LCX02DG suitable for new designs?

A: No. The MC74LCX02DG is listed as obsolete. New designs should use active-status parts: SN74LVC02AQDRQ1, SN74LVC02AQDRG4Q1, or MC74LCX02DR2G.

Q: Does packaging format affect electrical performance?

A: No. Tape & Reel, Tube, and Bulk packaging formats do not affect electrical performance. Packaging selection is determined by assembly process requirements and inventory management practices.

Q: Are all substitute parts RoHS3 compliant?

A: The SN74LVC02AQDRQ1, SN74LVC02AQDRG4Q1, MC74LCX02DG, and MC74LCX02DR2G are all ROHS3 compliant. The 74LVC02AD,118 compliance status is not specified in the provided data.

Q: What is the significance of the AEC-Q100 qualification?

A: AEC-Q100 qualification indicates the part meets automotive industry reliability and quality standards. Only the Texas Instruments parts (SN74LVC02AQDRQ1 and SN74LVC02AQDRG4Q1) carry this certification. Applications requiring automotive-grade components must use these variants.

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